The Biohacking Knowledge Hub
Biohacking Guides on Sleep, Sauna, NAD+ & Longevity
Deep guides on every biohacking method: sauna, cold exposure, sleep, NAD+, glucose monitoring, and hundreds more. Evidence-rated science, real experiences, community consensus. Trusted equipment links when you're ready to act.
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Science, protocols, experiences, and risks. The complete picture before you spend a dollar.
Evidence-Rated
Every claim tagged: strong, moderate, emerging, or anecdotal evidence
Trusted Sources
When you're ready to buy, we link to vetted retailers. Clearly disclosed, never pushy.
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In-Depth Guides
11
Topics Covered
140
Equipment References
55+
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Essential Guides
Heat TherapyInfrared Sauna: The Complete Guide
Regular sauna use is one of the strongest lifestyle interventions linked to reduced cardiovascular mortality in decades of Finnish research. This guide covers how infrared saunas work, Huberman and Rhonda Patrick's protocols, what you'll actually feel, the risks nobody mentions, and what 10,000+ Reddit users report.
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Cold TherapyCold Exposure: The Complete Guide
Deliberate cold exposure is one of the most accessible biohacks with measurable effects on norepinephrine, dopamine, metabolism, and mental resilience. This guide breaks down the Huberman protocol (11 min/week), the Wim Hof method, what happens to your body, and how to build a sustainable practice.
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Light TherapyRed Light Therapy: The Complete Guide
Red and near-infrared light therapy (photobiomodulation) uses specific wavelengths to enhance mitochondrial function, accelerate recovery, and support skin health. This guide explains the science, optimal wavelengths, daily protocols, and how to evaluate the crowded device market.
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Sleep OptimizationSleep Optimization: The Complete Guide
Sleep is the foundation every biohacker builds on, Huberman calls it the #1 performance enhancer. This guide covers the science of sleep stages, temperature regulation, light protocols, tracking with wearables, and the complete toolkit for deep restorative sleep.
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SupplementsBryan Johnson's Blueprint: The Complete Guide
Bryan Johnson spends ~$2M/year on his 'Don't Die' anti-aging protocol, the most measured human body in history. Blueprint includes 100+ daily supplements, precise sleep/calorie timing, plasma exchange, and relentless biomarker tracking. This guide breaks down what's evidence-based, what's experimental, and what mere mortals can actually adopt.
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Cognitive EnhancementBreathwork: The Complete Guide
Breathwork is the most accessible biohack, free, immediate, and backed by real physiology. From Wim Hof's hyperventilation cycles to Navy SEAL box breathing, controlled breathing shifts autonomic state in minutes. This guide covers protocols, mechanisms, and building a daily practice.
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SupplementsIntermittent Fasting: The Complete Guide
Intermittent fasting (IF) is one of the most practiced biohacks worldwide, popularized by Dave Asprey's Bulletproof approach and validated by decades of metabolic research. This guide covers 16:8 vs OMAD, ketosis timing, autophagy windows, and who should avoid fasting.
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Cognitive EnhancementBulletproof Coffee: The Complete Guide
Bulletproof Coffee, coffee blended with grass-fed butter and MCT oil, is Dave Asprey's signature biohack and the drink that launched the modern biohacking movement. This guide covers the science of fat-fueled mornings, C8 MCT vs C10, mold-free coffee, and how to build the ritual.
Read guideDiagnostics & TestingBlood Panel Testing: The Complete Guide
Annual bloodwork is the foundation of data-driven biohacking. Peter Attia's framework prioritizes ApoB, insulin, HbA1c, and inflammatory markers over standard lipid panels. This guide covers what to test, how often, where to order, and how to interpret results.
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SupplementsUrolithin A: The Complete Guide
Urolithin A is a gut microbiome metabolite that triggers mitophagy, the selective recycling of damaged mitochondria. Amazentis/Timeline's Mitopure is the first clinically validated urolithin A supplement. This guide covers the science, dosing, and who actually converts ellagic acid from food.
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Sleep OptimizationCircadian Rhythm Optimization: The Complete Guide
Your circadian rhythm governs sleep, hormones, metabolism, and mood. Huberman and Walker's most foundational advice isn't a supplement or gadget, it's light exposure timing. This guide covers the complete circadian protocol: morning sunlight, evening protection, meal timing, and temperature.
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Sleep OptimizationMouth Tape & Nasal Breathing: The Complete Guide
Mouth taping encourages nasal breathing during sleep, which may reduce snoring, dry mouth, and fragmented sleep architecture. Popularized by James Nestor's 'Breath' and the Buteyko community, it's one of the cheapest sleep biohacks. This guide covers safe taping methods and contraindications.
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Wearables & TrackersOura Ring vs WHOOP (2026): Ring vs Band, Cost & Which to Buy
Oura and WHOOP are the two wearables biohackers debate most. Oura excels at passive sleep staging and HRV detail in an unobtrusive ring. WHOOP excels at training load management with its strain/recovery loop. This guide compares accuracy, pricing, use cases, and who should buy which. Considering Garmin too? See Garmin Fenix vs Oura vs WHOOP.
Read guideSleep OptimizationBedJet vs Chilipad vs Eight Sleep: Which to Buy
Sleep temperature regulation is one of the highest-leverage biohacks with genuine evidence behind it, and three systems dominate the category: Eight Sleep Pod, BedJet 3, and Sleepme's Dock Pro (the modern successor to Chilipad, now owned and re-engineered by the same Sleepme team). Eight Sleep uses hydronic water cooling built into a mattress cover with deep sleep-stage automation. BedJet uses forced air instead of water, with no wet components at all. Sleepme's Dock Pro is the direct descendant of the original Chilipad, focused purely on precise temperature control without the smart-home layer. This guide compares the technology, noise, subscriptions, price, and who should buy which. Want the science and budget tiers first? Read Sleep Cooling.
Read guideLight TherapyBest Red Light Therapy Panel for Home Use: A Biohacker's Buying Guide
Red light therapy (photobiomodulation) panels range from $150 travel-size units to $2,000+ full-body clinical panels, and price alone tells you almost nothing about effectiveness. What actually matters is irradiance at a realistic treatment distance, wavelength accuracy at 630–670nm (red) and 810–850nm (near-infrared), and whether the company publishes third-party testing. This guide compares Joovv's Elite panel, Hooga's budget-friendly HG panel, Mito Red's Mitopro line, and CurrentBody's LED mask for facial use, then breaks down how to choose based on your goals and budget. New to the science? Start with our Red Light Therapy complete guide.
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Tools & EquipmentBest Air Purifier for Biohackers: HEPA, VOC, and CADR Compared
Indoor air quality is an underrated biohacking lever, chronic exposure to fine particulates (PM2.5), VOCs, and allergens is linked to worse sleep, higher inflammatory markers, and reduced cognitive performance. But the air purifier market is full of inflated CADR claims and marketing around 'medical grade' filtration that doesn't always translate to real-world benefit. This guide compares IQAir's HealthPro Plus, AirDoctor's 5500, Blueair's Classic line, and Coway's Airmega, and explains which specs actually matter for a bedroom-focused biohacking setup. Broader home toxins context: Environmental Health. Water side: Water Filtration.
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Wearables & TrackersGarmin Fenix 8 vs Oura vs WHOOP: Which Tracker?
This page compares the Garmin Fenix 8 with Oura and WHOOP. It is not a Fenix 9 Pro review — if a listing says Fenix 9 Pro, the specs below do not apply to it. Fenix 8 is a GPS multisport watch. Oura is a passive sleep ring. WHOOP is a screenless strain band. The [Oura Ring 4 review](/equipment/oura-ring-gen4) covers price and the membership on its own. Narrowed to ring vs band only? See [Oura vs WHOOP](/guides/oura-vs-whoop).
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SupplementsAG1 & Greens Powders: Worth It or Overpriced?
AG1 (Athletic Greens) is the most marketed greens powder in biohacking — 75 ingredients in one scoop. Tim Ferriss and Huberman popularized it as nutritional insurance. This guide breaks down what's actually in greens powders, whether the $80/month price is justified, and how AG1 compares to DIY stacks and whole food.
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Sleep OptimizationSleep Cooling: Mattresses, Pads & Temperature Protocols
Sleep onset requires a 1–3°F core body temperature drop. Hot sleepers, couples with different preferences, and anyone chasing deep sleep often invest in active cooling — from $60 fan setups to $3,000 smart mattresses. This guide covers the science, equipment tiers, and Matthew Walker's temperature targets. For a head-to-head buy decision, see Eight Sleep vs BedJet vs Chilipad.
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Tools & EquipmentHigh-Ticket Biohacking Equipment on Amazon
Most premium biohacking gear sells direct-to-consumer only — Oura, Eight Sleep, Joovv, and Plunge require brand websites and long shipping times. But a meaningful tier of $400–$1,000+ equipment is available on Amazon with Prime shipping, buyer protection, and easy returns. This guide maps the highest-ROI high-ticket Amazon purchases by category, what to verify before buying, and where DTC-only brands still win.
Read guideCold TherapyPlunge vs Ice Barrel: Which Cold Plunge Should You Buy?
Home cold plunges split into two camps: chiller-equipped tubs like the Plunge All-In ($5,000) that hold 39°F without ice, and manual barrels like the Ice Barrel 300 ($1,200) where you add ice each session. Both deliver Huberman's 11 min/week protocol — the difference is convenience, running costs, and whether you'll actually use it daily. For the full science and free-to-premium path, start with our Cold Exposure guide.
Read guideTools & EquipmentIQAir vs AirDoctor vs Blueair: Which Air Purifier to Buy
IQAir HealthPro Plus, AirDoctor 5500, and Blueair Classic 480i are the three air purifiers people compare once they have left $150 Amazon units behind. IQAir and AirDoctor both claim capture down to 0.003 microns. Blueair is quieter and cheaper, and stops at 0.1 microns. This page is the buying decision. For particle science and placement, start with Indoor Air Quality.
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Tools & EquipmentAquaTru vs Waterdrop: Which Reverse Osmosis System to Buy
AquaTru and Waterdrop G3P800 both use reverse osmosis to cut PFAS, fluoride, and lead. AquaTru sits on the counter and needs no plumber. Waterdrop installs under the sink, runs faster, and is the system you buy when you own the kitchen. This page is that decision. For the wider filter map, including Berkey, see Best Water Filter.
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Tools & EquipmentTheragun vs Hypervolt: Which Massage Gun to Buy
Theragun PRO Plus and Hypervolt 2 Pro are the two massage guns worth comparing once you have ruled out $100 clones. Both hit 16mm of amplitude. Theragun costs $549–$649 and is built around a triangle grip that reaches your own back. Hypervolt costs $399–$449 and adds a pressure sensor. For how to use either one, see Percussion Massage.
Read guideSleep OptimizationBedJet vs Sleepme: Which Sleep Cooling System to Buy
BedJet 3 and Sleepme Dock Pro are the two active sleep-cooling systems you can buy on Amazon. BedJet blows conditioned air under the covers for $399–$549. Sleepme circulates water through a pad on the mattress for $699–$999 and holds a surface temperature. Eight Sleep is the more expensive system, and it is not sold on Amazon. For the science of why temperature matters, start with Sleep Cooling.
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Tools & EquipmentNormatec vs Massage Gun: Which Recovery Tool to Buy
Normatec 3, a massage gun, and a Compex EMS unit get lumped together as 'recovery gear.' They are three different tools. Normatec squeezes fluid up the legs for $699–$899 while you sit still. A Hypervolt or Theragun hits tight muscle for $399–$649. Compex fires the muscle with electrodes for $549–$749. Buy one. For how to use a gun or boots on their own, see Percussion Massage and Compression Recovery.
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Light TherapyRed Light Panel vs Face Mask: Which to Buy
On Amazon, the red-light choice that actually ships is a Hooga panel or a CurrentBody face mask. The panel is $120–$170 and treats skin plus a joint or a muscle at a distance. The mask is $449–$549, sits on the face, and runs a fixed 10-minute skin session. A mask will not treat your back. A small panel is an awkward way to do your face every day. Joovv's large panels are a separate, mostly direct-to-consumer purchase.
Read guideTools & EquipmentBest Water Filter for Biohackers: Berkey vs AquaTru vs Waterdrop Compared
Tap water carries PFAS, fluoride, lead, and microplastics — biohackers filter drinking water for the same reason they filter air. This guide compares Berkey gravity filters, AquaTru countertop reverse osmosis, and Waterdrop under-sink tankless RO by contaminant removal, installation, and cost. For the science on filter types and regional water quality, see our Water Filtration guide.
Read guide
Wearables & TrackersStrength Training for Longevity: The Complete Guide
Cardio gets the longevity headlines, but muscle mass, strength, and power are among the strongest predictors of healthy aging. This guide covers why resistance training belongs next to Zone 2, how much is enough, and a beginner-to-intermediate protocol that still works at 70.
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Diagnostics & TestingVO2 Max: The Complete Guide
VO₂ max — the maximum rate at which you can use oxygen — is one of the best-studied predictors of all-cause mortality. Peter Attia calls it a vital sign. This guide covers lab testing vs wearable estimates, what 'good' looks like by age, and a training mix of Zone 2 plus intervals.
Read guidePeptidesGLP-1 Agonists: The Complete Guide
GLP-1 receptor agonists (semaglutide, liraglutide) and dual agonists (tirzepatide) moved from diabetes clinics into mainstream weight and metabolic culture. For biohackers, the live questions are muscle loss, rebound weight, nutrient quality, and whether a peptide drug belongs next to Zone 2 and protein. This is a map of the evidence — not a shortcut to a vial.
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SupplementsProtein for Longevity: The Complete Guide
Protein is the most under-discussed longevity lever after sleep and training. Too little accelerates sarcopenia; the right amount supports muscle, bone, and metabolic health into older decades. This guide covers g/kg targets, meal distribution, and how protein needs change on GLP-1s and during fat loss.
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Tools & EquipmentMicroplastics: The Complete Guide
Microplastics and nanoplastics show up in water, food, air, and now human blood and placenta samples. The health impact is still being quantified, but exposure reduction is actionable today. This guide covers sources, what filters actually help, and a sane home protocol without plastic panic.
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Diagnostics & TestingGundry, Lectins & the Microbiome: The Complete Guide
Cardiac surgeon Steven Gundry built a massive following by linking lectins, leaky gut, and the microbiome to obesity and autoimmune disease. This guide explains his framework fairly, separates strong ideas from contested claims, includes practical recipes, and links his core books on Amazon.
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SupplementsDavid Sinclair & Longevity Science: The Complete Guide
Harvard geneticist David Sinclair changed public conversation with Lifespan (2019): aging as treatable, NAD+ and sirtuins as levers, fasting and cold as free drugs. This guide explains his research fairly, maps his personal stack, includes longevity-friendly recipes, and links Lifespan editions on Amazon.
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SupplementsWilliam Li & Eat to Beat: The Complete Guide
Physician-scientist William W. Li, MD, made angiogenesis — how the body grows and prunes blood vessels — a household idea with his TED talk and Eat to Beat Disease. This guide explains his five defense systems fairly, maps the 5×5×5 add-foods framework, includes practical recipes, and links his books on Amazon.
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SupplementsPeter Attia & Outlive: The Complete Guide
Peter Attia’s Outlive (2023) is the most useful popular longevity book of the decade: delay the Four Horsemen (atherosclerosis, cancer, neurodegeneration, metabolic disease) with exercise, lipids, sleep, and emotional health — not a supplement haul. This guide translates the book into a sequence you can actually run, and links the hardcover on Amazon.
Read guideGear Decisions
Buying Guides & Comparisons
Head-to-head comparisons and best-of roundups for the gear people actually search before they buy.
Wearables & TrackersOura Ring vs WHOOP (2026): Ring vs Band, Cost & Which to Buy
Oura and WHOOP are the two wearables biohackers debate most. Oura excels at passive sleep staging and HRV detail in an unobtrusive ring. WHOOP excels at training load management with its strain/recovery loop. This guide compares accuracy, pricing, use cases, and who should buy which. Considering Garmin too? See Garmin Fenix vs Oura vs WHOOP.
Read guideWearables & TrackersGarmin Fenix 8 vs Oura vs WHOOP: Which Tracker?
This page compares the Garmin Fenix 8 with Oura and WHOOP. It is not a Fenix 9 Pro review — if a listing says Fenix 9 Pro, the specs below do not apply to it. Fenix 8 is a GPS multisport watch. Oura is a passive sleep ring. WHOOP is a screenless strain band. The [Oura Ring 4 review](/equipment/oura-ring-gen4) covers price and the membership on its own. Narrowed to ring vs band only? See [Oura vs WHOOP](/guides/oura-vs-whoop).
Read guideSleep OptimizationBedJet vs Chilipad vs Eight Sleep: Which to Buy
Sleep temperature regulation is one of the highest-leverage biohacks with genuine evidence behind it, and three systems dominate the category: Eight Sleep Pod, BedJet 3, and Sleepme's Dock Pro (the modern successor to Chilipad, now owned and re-engineered by the same Sleepme team). Eight Sleep uses hydronic water cooling built into a mattress cover with deep sleep-stage automation. BedJet uses forced air instead of water, with no wet components at all. Sleepme's Dock Pro is the direct descendant of the original Chilipad, focused purely on precise temperature control without the smart-home layer. This guide compares the technology, noise, subscriptions, price, and who should buy which. Want the science and budget tiers first? Read Sleep Cooling.
Read guideLight TherapyBest Red Light Therapy Panel for Home Use: A Biohacker's Buying Guide
Red light therapy (photobiomodulation) panels range from $150 travel-size units to $2,000+ full-body clinical panels, and price alone tells you almost nothing about effectiveness. What actually matters is irradiance at a realistic treatment distance, wavelength accuracy at 630–670nm (red) and 810–850nm (near-infrared), and whether the company publishes third-party testing. This guide compares Joovv's Elite panel, Hooga's budget-friendly HG panel, Mito Red's Mitopro line, and CurrentBody's LED mask for facial use, then breaks down how to choose based on your goals and budget. New to the science? Start with our Red Light Therapy complete guide.
Read guideTools & EquipmentBest Air Purifier for Biohackers: HEPA, VOC, and CADR Compared
Indoor air quality is an underrated biohacking lever, chronic exposure to fine particulates (PM2.5), VOCs, and allergens is linked to worse sleep, higher inflammatory markers, and reduced cognitive performance. But the air purifier market is full of inflated CADR claims and marketing around 'medical grade' filtration that doesn't always translate to real-world benefit. This guide compares IQAir's HealthPro Plus, AirDoctor's 5500, Blueair's Classic line, and Coway's Airmega, and explains which specs actually matter for a bedroom-focused biohacking setup. Broader home toxins context: Environmental Health. Water side: Water Filtration.
Read guideTools & EquipmentBest Water Filter for Biohackers: Berkey vs AquaTru vs Waterdrop Compared
Tap water carries PFAS, fluoride, lead, and microplastics — biohackers filter drinking water for the same reason they filter air. This guide compares Berkey gravity filters, AquaTru countertop reverse osmosis, and Waterdrop under-sink tankless RO by contaminant removal, installation, and cost. For the science on filter types and regional water quality, see our Water Filtration guide.
Read guideCold TherapyPlunge vs Ice Barrel: Which Cold Plunge Should You Buy?
Home cold plunges split into two camps: chiller-equipped tubs like the Plunge All-In ($5,000) that hold 39°F without ice, and manual barrels like the Ice Barrel 300 ($1,200) where you add ice each session. Both deliver Huberman's 11 min/week protocol — the difference is convenience, running costs, and whether you'll actually use it daily. For the full science and free-to-premium path, start with our Cold Exposure guide.
Read guideTools & EquipmentIQAir vs AirDoctor vs Blueair: Which Air Purifier to Buy
IQAir HealthPro Plus, AirDoctor 5500, and Blueair Classic 480i are the three air purifiers people compare once they have left $150 Amazon units behind. IQAir and AirDoctor both claim capture down to 0.003 microns. Blueair is quieter and cheaper, and stops at 0.1 microns. This page is the buying decision. For particle science and placement, start with Indoor Air Quality.
Read guideTools & EquipmentAquaTru vs Waterdrop: Which Reverse Osmosis System to Buy
AquaTru and Waterdrop G3P800 both use reverse osmosis to cut PFAS, fluoride, and lead. AquaTru sits on the counter and needs no plumber. Waterdrop installs under the sink, runs faster, and is the system you buy when you own the kitchen. This page is that decision. For the wider filter map, including Berkey, see Best Water Filter.
Read guideTools & EquipmentTheragun vs Hypervolt: Which Massage Gun to Buy
Theragun PRO Plus and Hypervolt 2 Pro are the two massage guns worth comparing once you have ruled out $100 clones. Both hit 16mm of amplitude. Theragun costs $549–$649 and is built around a triangle grip that reaches your own back. Hypervolt costs $399–$449 and adds a pressure sensor. For how to use either one, see Percussion Massage.
Read guideSleep OptimizationBedJet vs Sleepme: Which Sleep Cooling System to Buy
BedJet 3 and Sleepme Dock Pro are the two active sleep-cooling systems you can buy on Amazon. BedJet blows conditioned air under the covers for $399–$549. Sleepme circulates water through a pad on the mattress for $699–$999 and holds a surface temperature. Eight Sleep is the more expensive system, and it is not sold on Amazon. For the science of why temperature matters, start with Sleep Cooling.
Read guideTools & EquipmentNormatec vs Massage Gun: Which Recovery Tool to Buy
Normatec 3, a massage gun, and a Compex EMS unit get lumped together as 'recovery gear.' They are three different tools. Normatec squeezes fluid up the legs for $699–$899 while you sit still. A Hypervolt or Theragun hits tight muscle for $399–$649. Compex fires the muscle with electrodes for $549–$749. Buy one. For how to use a gun or boots on their own, see Percussion Massage and Compression Recovery.
Read guideLight TherapyRed Light Panel vs Face Mask: Which to Buy
On Amazon, the red-light choice that actually ships is a Hooga panel or a CurrentBody face mask. The panel is $120–$170 and treats skin plus a joint or a muscle at a distance. The mask is $449–$549, sits on the face, and runs a fixed 10-minute skin session. A mask will not treat your back. A small panel is an awkward way to do your face every day. Joovv's large panels are a separate, mostly direct-to-consumer purchase.
Read guide
Sleep OptimizationHuberman Sleep Stack: The Buying Guide
Andrew Huberman’s evening stack — magnesium, L-theanine, and apigenin, often with glycine — is the most copied supplement protocol on the internet. Evidence is strongest for magnesium and glycine, thinner for apigenin. This buying guide ranks what to purchase, in what order, and links Amazon-available SKUs we already review.
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SupplementsBest Creatine: The Buying Guide
Creatine monohydrate is the rare supplement with decades of human data for strength, and growing interest in cognition and healthy aging. You do not need hydrochloride, buffered, or a $60 tub. This buying guide picks a tested monohydrate and tells you what to ignore.
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SupplementsBest Magnesium: The Buying Guide
Magnesium is the first sleep-stack purchase that usually deserves to stay. Glycinate (bisglycinate) is the default for evenings; citrate if you also want a stool softener; threonate if you are paying extra for a cognition story. This buying guide maps forms to Amazon SKUs.
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SupplementsBest Omega-3: The Buying Guide
Omega-3 is a foundation supplement if you do not eat fatty fish twice a week. You want EPA+DHA in grams, not a 1,000mg ‘fish oil’ softgel that is mostly filler. This buying guide points at Nordic Naturals Ultimate Omega and tells you what to ignore.
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SupplementsBest Vitamin D: The Buying Guide
Vitamin D shopping is easy once you have a 25(OH)D number. D3 (cholecalciferol) beats D2. 5,000 IU is a repletion-style softgel, not a forever default. This buying guide picks NOW D3 for cheap D-only and Thorne D3/K2 when you want both in one capsule.
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SupplementsBest Protein Powder: The Buying Guide
Protein powder is a convenience layer on top of food, not a longevity molecule. Whey is the default if you tolerate dairy. Collagen is glycine and joints, not a complete muscle protein. This buying guide picks Optimum Nutrition whey and Vital Proteins collagen and tells you when to skip powder entirely.
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SupplementsBest Collagen: The Buying Guide
Collagen peptides are a glycine-rich, incomplete protein with modest skin and joint trial data. Shopping is easy: hydrolyzed peptides that dissolve, not a $70 beauty tin. This buying guide picks Vital Proteins and tells you to keep vitamin C and a complete protein in the same kitchen.
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SupplementsBest Probiotic: The Buying Guide
Most Amazon probiotic bottles are a CFU number and a mystery blend. Strain identity and published counts beat a 50-strain fireworks label. This buying guide picks Seed DS-01 as the biohacker default, tells you to eat fermented food anyway, and links the full probiotics guide for the science.
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SupplementsBest Ashwagandha: The Buying Guide
Ashwagandha shopping is extract theater. KSM-66 and Sensoril name the extract; Kion no longer lists a standalone ashwagandha SKU on getkion.com. NOW 450 mg is the Amazon bottle with a buy button. This buying guide picks NOW for checkout and tells you to stop at eight weeks if nothing changed.
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SupplementsBest Electrolytes: The Buying Guide
Electrolyte shopping is sodium theater plus flavors. Sweaty training, sauna, and low-carb diets are the usual reasons to add salt — not a $40 ‘cellular hydration’ identity. This buying guide picks LMNT as the Amazon packet and sends you to the electrolytes guide for the physiology.
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SupplementsBest NAC: The Buying Guide
NAC shopping is brand theater around one molecule. NOW 600 mg with selenium is the Amazon bulk bottle. Thorne 500 mg is the NSF-for-Sport upgrade. Oral glutathione stays a waste on this site. This buying guide picks NOW for checkout and tells you the black specks are oxidation.
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SupplementsBest CoQ10: The Buying Guide
CoQ10 shopping is form theater. NOW 100 mg ubiquinone in oil is the Amazon volume bottle. Life Extension Super Ubiquinol is the reduced-form upgrade we already list. This buying guide picks NOW for a cheap trial and sends statin users over 40 to the full CoQ10 guide before they default to the cheapest quinone.
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SupplementsBest Zinc: The Buying Guide
Zinc shopping is form and dose. Picolinate beats oxide. NOW 50 mg elemental is the cheap Amazon repletion capsule — it sits above the 40 mg/day adult upper limit, so it is not a forever daily. Thorne 15–30 mg NSF is the maintain bottle. This buying guide picks NOW for a short course and tells you to do the math with your multi.
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SupplementsBest Berberine: The Buying Guide
Berberine shopping is milligrams and GI luck. NOW 400 mg HCl with MCT is the Amazon softgel. Thorne 500 mg is the NSF upgrade. Clinical meal-time totals are often 1,000–1,500 mg/day — count capsules. This buying guide picks NOW for a cheap trial and refuses the OTC-metformin story.
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SupplementsBest Vitamin C: The Buying Guide
Vitamin C shopping is dose honesty. NOW C-1000 is the Amazon bottle already on this site. Food still covers most people. This buying guide picks NOW when you want a cheap tablet — especially next to collagen — and tells you 10 g powders and clinic IV drips are a different conversation.
Read guideLearning Paths
Curated Reading Paths
Follow these guide sequences to build a complete understanding of each biohacking domain, from science to protocol to equipment.
The Gear Decisions Stack
Wearables, sleep cooling, red light, air & water — compare before you buy
The Recovery Stack
Sauna, cold plunge, red light, sleep tracking
The Sleep Stack
Magnesium + temperature control + HRV tracking + NSDR
The Metabolic Stack
CGM + Zone 2 + lifting + GLP-1 context + gut health
The Foundation Stack
Creatine, omega-3, vitamin D, NAD+, taurine. Tier-1 and tier-2 supplements.
The Blueprint Stack
Bryan Johnson's essentials: sleep, stack, tracking, environment
The Starter Stack
Free cold showers + breathwork + sleep basics
The Bulletproof Stack
Dave Asprey's morning ritual: fasting, fat-fueled coffee, vagus toning
The Mind Stack
Neurofeedback, nootropics, breathwork, and nervous system control
The 2026 Longevity Stack
VO2 max, lifting, mTOR, incretins — what the field is arguing about now
Featured
Top Biohacking Tools
Topics
Explore by Topic
From wearables to peptides, cold plunges to stem cells. Deep guides organized by domain.
Wearables & Trackers
Sleep rings, continuous glucose monitors, HRV devices, and biometric wearables used by top biohackers.
Light Therapy
Red light, near-infrared panels, and photobiomodulation devices for recovery, skin, and mitochondrial health.
Heat Therapy
Infrared saunas, traditional saunas, and heat exposure protocols for cardiovascular and longevity benefits.
Cold Therapy
Cold plunges, cryotherapy chambers, and cold exposure tools for recovery and resilience.
Supplements
Nootropics, longevity compounds, vitamins, and stacks, with evidence ratings and risk profiles.
Peptides
BPC-157, TB-500, epitalon, and other peptides, mechanisms, sourcing, and legal considerations.
Sleep Optimization
Sleep masks, mouth tape, cooling systems, and protocols for deep restorative sleep.
Cognitive Enhancement
Brain training, neurofeedback, tDCS, and cognitive performance tools.
Diagnostics & Testing
Blood panels, microbiome tests, genetic analysis, and at-home health diagnostics.
Procedures & Treatments
Stem cells, NAD+ IV, hyperbaric oxygen, and clinical anti-aging procedures.
Tools & Equipment
Water filters, air purifiers, grounding mats, and environmental optimization gear.
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