The ones everyone's running
The matchups everyone argues about
The 2am questions
Types of peptides by goal
The Ozempic conversation. Semaglutide and tirzepatide are FDA-approved with massive trial data. Retatrutide posted 24% weight loss in Phase 2. The data here is not ambiguous.
See weight loss peptides Recovery & healingThe “my knee has been like this for two years” peptides. BPC-157 and TB-500. BPC goes to the injury. TB-500 goes everywhere. People stack both.
See recovery peptidesThe “did you get work done?” peptides. GHK-Cu is the collagen signal your body stopped making in your twenties. Melanotan II gives you a tan without the sun. Side effects are real.
See beauty peptides LongevityThe speculative shelf. Epithalon targets telomeres. MOTS-c and SS-31 target your mitochondria. NAD+ is everywhere. This category has the least human data and the most dinner-party energy.
See longevity peptides Muscle & GHCJC-1295 + Ipamorelin before bed. The classic growth hormone stack. Tesamorelin is FDA-approved for visceral fat. These tell your body to make more of what it already produces.
See muscle peptides Focus & moodSemax and Selank. Clean focus without the Adderall hangover. Both approved in Russia, off-label everywhere else. No sedation, no crash. The quiet shelf.
See cognitive peptidesPeptide protocols and stacking
A protocol is just your schedule. Which peptide, how much, how often, for how long. You pin subcutaneously with an insulin syringe. Some compounds are daily, some are twice a week. “Stacking” means running two together because they do different things.
The three stacks everyone runs
How do peptides work?
A peptide is a signaling molecule that tells your cells what to do — heal, burn fat, build collagen, sleep deeper. Your body already makes thousands. The ones here are lab-made copies you inject into belly or thigh fat because your stomach would destroy them. Some are FDA-approved. Most are not. Every profile covers dosing, side effects, and what the data actually says. The calculator does the syringe math.
This is a list of peptides people actually run. Not every peptide that exists. The best peptides by evidence, not by hype. What peptides should you take? Depends on your goal. Start below.
Brand new? Start with the 4-minute guide →- Each amino acid in the chain has a slight positive, negative, or neutral charge.
- These charges pull and push against each other, forcing the flat chain to twist and fold into a unique 3D shape.
- A flat string of letters becomes a physical object. That object is the key.
- Its shape is precise, designed to fit a single lock on a single type of cell.
Stop guessing how much to draw up.
Your vial size, your BAC water, your dose. Put in the three numbers and our calculator tells you the exact unit mark on the syringe. Preloaded for every peptide here, so you can close the other 12 tabs.
Do the math for meThat’s the number.