PepVault
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01 / signal

Your body already speaks in peptides.

Short chains of amino acids — the signaling language every cell on earth already knows how to read.

02 / chaos

But the information is scattered.

Forums, podcasts, broscience, half-finished trials. The signal is buried in the noise.

03 / spark

Match the molecule to the outcome.

Fat loss. Recovery. Sleep. Longevity. Glow. Evidence-grounded, outcome-first.

04 / index

This is PepVault.

The modern reference for peptides — keep scrolling.

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v1 · 153 compounds indexed · 12 outcome categories

Every peptide.
One vault.

PepVault is the research peptide library that maps every compound to the outcome it actually moves — fat loss, recovery, sleep, longevity, skin. Browse the database, build your stack, and order from vetted suppliers. No bro-science. No dead ends.

Build my peptide stackBrowse by your goals

A short, personalized quiz to build your plan.

Browse by your goals

Pick the goals you actually have.

Tap as many as apply — we'll rank peptides by fit across all of them and build you a personalized list.

Start here

So… what actually is a peptide?

Your body runs on chemical text messages. Peptides are those messages — short chains of amino acids that tell specific cells exactly what to do. The ones on this site are the synthesized versions, used deliberately to nudge specific outcomes.

  1. 01
    The letter

    Amino acid

    Twenty of these are the alphabet every protein in your body is written in. On their own they're inert — they're just the raw building blocks.

    e.g. glycine · proline · lysine
  2. 02
    The word

    Peptide

    String a few of those letters together in the right order and you get a word with meaning. Two to about fifty amino acids long — small enough to slip through tissue, specific enough to mean exactly one thing.

    e.g. BPC-157 is 15 letters long · Semaglutide is 31
  3. 03
    The message arrives

    Signal

    Each peptide is shaped to fit one type of cell-surface receptor like a key in a lock. The cell reads the message — burn this, repair that, sleep deeper — and acts on it. That's the whole magic trick.

    → repair · → metabolize · → signal · → defend
Four jobs, one alphabet

How they actually do anything.

Most peptides on the market do one of four things. Once you can spot which job a compound is built for, the whole landscape gets a lot less overwhelming.

01
Signal

They tell glands what to release.

Some peptides act like a tap on the shoulder for your pituitary — "hey, more growth hormone tonight." That's how the GH-secretagogue family (Ipamorelin, CJC) works.

e.g. Ipamorelin · CJC-1295
02
Repair

They speed up local healing.

Others ride in and tell injured tissue to rebuild faster. BPC-157 is the famous one — gut-derived, used (off-label) by athletes for tendon and ligament repair.

e.g. BPC-157 · TB-500
03
Metabolize

They reshape how you burn fuel.

The GLP-1 family (Semaglutide, Tirzepatide) is the most famous case — they tell your gut and brain to feel full sooner and store fuel differently.

e.g. Semaglutide · Tirzepatide
04
Defend

They wake up your immune system.

A smaller family talks to immune cells — calming inflammation in some cases, sharpening immune response in others. Thymosin Alpha-1 is the classic.

e.g. Thymosin α-1 · LL-37
Want the longer version? Go to Learn
01

Match by outcome

Pick your goal. Get a ranked shortlist with explicit rationale per compound.

02

Read the evidence

Every peptide is tagged anecdotal, emerging, or established. No hype, no hidden weighting.

03

Source carefully

Affiliate links route through vetted partners. Education first, commerce second.

Pick your path

Where are you starting from?

I'm brand new

Start with Learn.

No-nonsense primers on what peptides are, how they're delivered, what's legal, what isn't, and what to be careful about.

Open the Learn section
I have a goal

Build my stack.

Tell us the outcome — fat loss, sleep, recovery, glow — and we'll rank the compounds best matched to it, with rationale.

Build my stack
I know what I'm looking for

Hit the Database.

74 compounds, faceted. Filter by outcome, administration route, and evidence level. Every entry links to its detail page.

Open the Database
The index

Compounds we're watching.

All 153 peptides
Outcome categories

What do you want your body to do?

All outcomes
Field reports

Real protocols. Real people. Real results.

Eight first-person accounts from people running peptide protocols right now — goal, stack, dose, timeline, outcome, and the caveats they'd want you to know.

01 / 08
16 weeks
Fat loss + lean mass retention
Marcus
42M · Austin, TX
“I'd tried every cut for a decade. This is the first time I wasn't hungry, wasn't beat up, and didn't lose strength. The food noise just… stopped.”
Stack
TirzepatideBPC-157
Protocol

Tirzepatide 2.5mg → 7.5mg weekly over 16 weeks. BPC-157 250mcg BID for joint support during heavy training.

Result

Lost 22 lbs, kept all lifts within 5%. Waist 38 → 33.

What to know

Mild nausea weeks 1–2 after each dose bump. Hydration and electrolytes fixed it.

02 / 08
8 weeks
Sleep depth + recovery
Sarah
38F · Brooklyn, NY
“I'm a founder with two kids. I wasn't sleeping — I was passing out. Now I actually wake up before the alarm and feel like a human.”
Stack
DSIPEpitalon
Protocol

DSIP 100mcg pre-bed, 5 nights on / 2 off. Epitalon 10mg nightly for a 20-day cycle, twice a year.

Result

Deep sleep up 47% on Oura. Resting HR dropped from 64 to 56.

03 / 08
10 weeks
Chronic Achilles tendinopathy
David
51M · Denver, CO
“Two ortho consults, one PRP injection, six months of PT. Nothing held. Ten weeks on this protocol and I'm running again. I'm not exaggerating — it changed my year.”
Stack
BPC-157TB-500
Protocol

BPC-157 250mcg sub-Q near site, twice daily. TB-500 2mg loading dose weekly × 4, then 2mg every other week.

Result

Pain 7/10 → 1/10. Back to running 5 days a week. First pain-free trail run in 3 years.

What to know

I'm not telling you to skip your doctor. I did PT alongside this.

04 / 08
12 weeks
Skin quality + dermal density
Jen
45F · Los Angeles, CA
“I was about to book filler. My esthetician asked what I'd changed — she could see it under her scope. I cancelled the appointment.”
Stack
GHK-CuEpitalon
Protocol

GHK-Cu 2mg sub-Q 3x/week + topical 1% serum nightly. Epitalon 10mg nightly × 20 days, biannual.

Result

Visible reduction in nasolabial depth. Esthetician confirmed measurable dermal thickness gain.

05 / 08
6 weeks
Cognitive performance + focus
Ryan
34M · San Francisco, CA
“I was burning through stimulants to stay sharp. Semax gave me clean focus — no jitter, no comedown. Selank takes the edge off without making me dumb.”
Stack
SemaxSelank
Protocol

Semax 300mcg intranasal AM. Selank 300mcg intranasal as needed for high-stakes meetings or deep work blocks.

Result

Sustained 4-hour deep work sessions without the Adderall crash. Cut caffeine by half.

What to know

Effects are subtle the first week. Don't expect a stimulant hit.

06 / 08
14 weeks
Perimenopausal energy + body composition
Amanda
47F · Nashville, TN
“My doctor told me this was just my new normal. It wasn't. I got my body — and my mornings — back.”
Stack
TesamorelinIpamorelin
Protocol

Tesamorelin 1mg + Ipamorelin 300mcg, nightly sub-Q. 5 nights on / 2 off.

Result

Visceral fat down 18% on DEXA. Morning energy back. Lost the 'meno belly' nobody warned me about.

What to know

Mild water retention week 1. Resolved on its own.

07 / 08
6 months
Longevity + metabolic markers
Kevin
58M · Seattle, WA
“My biomarkers at 58 are better than they were at 48. My cardiologist asked what I was doing — and then asked for the protocol.”
Stack
MOTS-cEpitalonNAD+
Protocol

MOTS-c 10mg 3x/week. Epitalon 10mg × 20-day cycle biannually. NAD+ 100mg sub-Q 2x/week.

Result

HbA1c 5.8 → 5.2. Fasting insulin halved. Biological age (TruDiagnostic) dropped 4.1 years.

08 / 08
8 weeks
Gut healing post-antibiotics
Lisa
36F · Chicago, IL
“Three rounds of antibiotics for a sinus infection wrecked my gut for a year. Eight weeks on oral BPC and KPV and I'm finally eating normally again.”
Stack
BPC-157KPV
Protocol

BPC-157 500mcg oral, twice daily. KPV 500mcg oral, once daily. 8-week cycle.

Result

Bloating gone. Bowel regularity restored. Inflammatory markers normalized.

Aggregated from public community reports, podcasts, and submitted accounts. Names changed where requested. Not medical advice — protocols vary by individual; consult a qualified clinician.

The unsexy part

Are these even safe? Are they legal?

The safety reality
  • Most peptides on this site are research compounds.
    Meaning: they aren't FDA-approved for the things people use them for. Long-term safety data is often thin.
  • Dose, source, and delivery matter more than the molecule.
    A clean BPC-157 from a vetted pharmacy is a different conversation than an unmarked vial off a forum.
  • Side effects are real and underreported.
    Injection-site irritation, water retention, headaches, mood shifts. Some compounds carry serious cautions — read the detail page before you act.
  • A peptide-literate clinician changes everything.
    If you're going to do this, do it with someone who can actually monitor labs and titrate.
The legal reality
  • A few peptides are FDA-approved drugs.
    GLP-1s like Semaglutide and Tirzepatide, for example. Prescription, regulated, dispensed by pharmacies.
  • Most are sold as "research chemicals."
    Legal to manufacture and sell for laboratory use. Not legal to market for human consumption.
  • Almost all of them are banned in sport.
    If you're a tested athlete, assume yes until proven otherwise (WADA lists them broadly).
  • Compounding pharmacies are a real middle path.
    Working with a peptide-literate prescriber unlocks pharmacy-grade access for many compounds — Wedgewood, Roadrunner, Diamondback are the names that come up.

Nothing on this site is medical advice. PepVault is an educational reference. Always consult a qualified clinician before starting any compound.

Quick glossary

The words you'll keep bumping into.

Full glossary in Learn
Start here

Stop scrolling forums. Start with your outcome.

PepVault

An outcome-driven reference for modern peptides. Educational only — not medical advice, not a sales platform, not affiliated with any clinic.

Disclaimer: PepVault is an educational resource. Nothing on this site is medical advice. Many peptides discussed are research compounds and are not approved by the FDA or equivalent agencies. Always consult a qualified clinician before starting any protocol.

© 2026 PepVault