Every article, one shelf.

Investigational (Phase 3)→

Retatrutide: The Triple Agonist Trying to Out-Do Its Own Family

Eli Lilly's three-receptor experiment posted some of the largest weight-loss numbers ever seen in a trial. It is still years from any pharmacy shelf.

Authorized medicine exists→

Tirzepatide: How a Dual Agonist Raised the Ceiling on Weight-Loss Medicine

The GIP/GLP-1 combination behind Mounjaro and Zepbound beat the first-generation drugs in a head-to-head trial.

Authorized medicine exists→

Semaglutide: The Molecule That Made Appetite a Drug Target for Everyone

From a lizard-venom lineage to Ozempic and Wegovy, the best-studied GLP-1 drug has outcome data most compounds on this site can only dream about.

Product- and jurisdiction-dependent→

Tesamorelin: The Growth-Hormone Peptide That Actually Became a Medicine

A Montreal-born GHRH analogue earned real approval for a narrow indication, and a much broader following that the evidence doesn't yet cover.

CJC-1295: A Drug Programme That Died, a Peptide That Didn't

Its corporate development ended years ago, yet this long-acting GHRH analogue lives on as a fixture of the grey-market growth hormone stack.

Ipamorelin: The Growth Hormone Secretagogue That Never Finished the Race

Novo Nordisk built it, tested it, and shelved it. Its reputation for selectivity keeps it circulating two decades later.

BPC-157: The Internet's Favourite Healing Peptide, Under the Microscope

Beloved by athletes and podcast hosts, backed almost entirely by rodent studies. The gap between BPC-157's reputation and its human evidence is the story.

TB-500: The Racehorse Peptide That Crossed Over to Humans

A fragment tied to thymosin beta-4 built a following in equine sport before migrating to gym bags. Human trial evidence is still stuck at the starting gate.

Route- and product-dependent→

GHK-Cu: The Copper Peptide Living a Double Life

In a face cream, it's a legitimate cosmetic ingredient with decades of skin research; in a syringe, it's an entirely different, and unauthorized, proposition.

MOTS-c: A Peptide Hiding Inside Your Mitochondrial DNA

Encoded in the genome of the cell's power plants, MOTS-c has made exercise scientists sit up. It remains a research story, not a product.

Depends on product and route→

NAD+: The Molecule Everyone Agrees Matters and No One Agrees How to Raise

The coenzyme at the heart of cellular energy declines with age; whether drips, shots, or precursor pills meaningfully change human aging is another matter.

SS-31: The Peptide That Goes Straight for the Mitochondria

Elamipretide binds a lipid found almost nowhere else in the cell. Drug developers have spent a decade betting on that.

Investigational→

Epitalon: A Soviet-Era Longevity Peptide Meets Modern Scrutiny

Four amino acids, a pineal-gland backstory, and telomere claims that have never faced a rigorous modern trial.

Regulatory history; product-dependent→

Sermorelin: The Growth Hormone Peptide With an Actual Regulatory Past

Once an FDA-approved pediatric drug, sermorelin now lives a second life in longevity clinics. That history explains both its appeal and its ambiguity.

KPV: Three Amino Acids Chasing Inflammation in the Gut

A fragment of a melanocyte hormone has become a forum favourite for inflammatory bowel symptoms, on the strength of mouse studies alone.

Cosmetic-interest; product-dependent→

AHK-Cu: The Other Copper Peptide, Riding GHK-Cu's Coattails

A copper-binding tripeptide marketed for hair growth on a fraction of the evidence its famous cousin has.

Research and clinical development→

Kisspeptin: The Hormone That Switches On Reproduction

Named after a chocolate, discovered in a cancer lab, and now one of the most legitimately interesting peptides in clinical research.

DSIP: The Sleep Peptide That Science Half Forgot

Isolated from rabbit brains in the 1970s, delta sleep-inducing peptide never reliably induced sleep. Its modern marketing leaves that part out.

Selank: Russia's Prescription Anti-Anxiety Peptide, Unlicensed Elsewhere

A tuftsin-based nasal spray with regulatory standing in Russia and none at all in Canada.

Unauthorized in Canada→

Semax: A Fragment of ACTH Repurposed for the Brain

Stripped of its hormonal activity and stabilized against enzymes, Semax became a Russian stroke drug and, later, a Western nootropic curiosity.

Unauthorized in Canada→

Authorized in some jurisdictions→

PT-141: The Desire Drug That Came From a Tanning Experiment

Bremelanotide is an approved prescription medicine in the US. That is exactly why the grey-market version is so misleading.

Thymosin Alpha-1: An Immune Peptide Approved in Dozens of Countries, Not This One

Thymalfasin has decades of clinical use abroad for hepatitis and immune support, and a much shakier life in the longevity market.

Jurisdiction-dependent→

Protein After 40: Why It Deserves Attention

Aging muscle responds less to the same meal, which makes protein one of the few nutrition levers worth actively managing.

Build a Better Plate, Skip the Diet

Most diets fail because they're rulebooks. A plate template is a default, and defaults are what survive a busy life.

Fibre: The Quiet Healthspan Habit

The least glamorous nutrient in the store keeps showing up in mortality data, and most of us eat about half of what the evidence points to.

Ultra-Processed Foods: Think Pattern, Not Panic

The problem with ultra-processed food isn't a secret toxin. It's what a diet built around it displaces, and how easy it makes overeating.

5 min read

Hydration: More Isn't Always Better

You are probably not chronically dehydrated, and the gallon-jug crowd is solving a problem most people don't have. What matters is narrower.

Strength Training for the Long Game

Two focused sessions a week is enough to change your trajectory. The barrier was never time. It was believing lifting is for someone else.

Walking: The Most Underrated Tool in Health

The dose-response data on daily steps embarrasses most supplements, and the biggest gains go to the people starting from the least.

Cardio for Healthspan: Build the Engine

A bigger aerobic engine changes what every year after 60 feels like. Building one is mostly easy miles plus a weekly dose of hard.

Mobility vs. Flexibility: What You Actually Need

Touching your toes is a party trick; controlling your joints through the ranges your life demands is the actual goal. They're trained differently.

Train Hard, Recover Smarter

Fitness is built in the hours between sessions, not during them, and most of the recovery tools that matter are free.

Sleep Better: Start With the Boring Basics

Before the tracker, the supplements, and the mouth tape, there are five unglamorous levers that fix most bad sleep. Most people have pulled none of them.

5 min read

Caffeine and Sleep: Timing Matters

Caffeine doesn't create energy. It borrows it from tonight's sleep, and the interest rate depends on when you drink it.

Snoring, Fatigue and Sleep Apnea: Don't Ignore the Signs

Loud snoring plus daytime exhaustion is a screening question, not a personality trait. The condition it points to is common, serious, and very treatable.

Why Sleep Changes How Training Feels

The same workout on six hours versus eight is a different workout. Sleep quietly rewrites your strength, endurance, injury risk, and appetite.

Healthspan vs. Lifespan: Pick the Right Target

Adding years is the wrong goal if they arrive at the end, pre-broken. The real project is compressing the sick years into the smallest possible window.

Muscle Is a Longevity Asset

Think of muscle less as vanity tissue and more as a retirement account, one that pays out in metabolism, mobility, and survivable bad luck.

VO2 Max and the Long Game

Few numbers in medicine predict how long you'll live as strongly as your aerobic capacity. Unlike your birth year, this one is trainable.

The Boring Fundamentals Still Beat the Biohacks

The gap between doing the basics and doing nothing is enormous; the gap between the basics and the frontier of biohacking is a rounding error, priced accordingly.

Stories

How to Read a Before-and-After Story Critically

Transformation content is the most persuasive format in health media, which is exactly why it deserves your most suspicious reading.

Stories

One Transformation, Ten Variables

A hypothetical six-month glow-up, dissected. When ten things change at once, crediting your favourite one is astrology, not analysis.