Browse by goal

Explore peptides by goal

Choose a goal to see which compounds people use for it, what studies have actually measured and where evidence is missing. 23 of the 50 pairings below are based only on reported use, not proven results.

Source: Based on 32 compound guides · checked 2026-08-20

What matters first

Goals you can explore: 10
Compounds covered: 32
Reported use only: 23 of 50 pairings

The ten are weight loss, muscle growth, skin, healing and recovery, sleep, anxiety and depression, longevity, sex drive, immune support and testosterone.

Each guide separates three things: what people use, what studies in people measured and what has not been tested. We do not rank the compounds or turn popularity into proof.

Choose a goal

Peptides for weight loss

15 compounds3 on reported use alone

See how 15 peptides compare for weight loss. Find approved options, trial results, timelines, costs, access, and where the evidence stops.

Peptides for muscle growth

6 compounds2 on reported use alone

Six peptides are sold for muscle gain. Four changed growth hormone in human studies, but none measured muscle size or strength. See the evidence.

Peptides for skin

3 compounds2 on reported use alone

Sellers offer three peptides for skin. The one with the most research is a cream ingredient, and its blinded trial did no better than control.

Peptides for healing and recovery

4 compounds3 on reported use alone

People buy four peptides to heal injuries faster. The two they buy most have the least human data, and FDA found no record of anyone taking one.

Peptides for sleep

5 compounds4 on reported use alone

Sellers offer five peptides for sleep. Only one has a study that measured sleep itself, and that work dates from the 1980s and used a vein.

Peptides for anxiety and depression

2 compounds1 on reported use alone

Selank has small studies in people with anxiety. None gives a dose. Semax and BPC-157 have no human result for anxiety or depression.

Peptides for longevity

6 compounds4 on reported use alone

Sellers offer six peptides for longevity. The famous lifespan result came from another substance. No study here measured how long people live.

Peptides for sexual function

2 compounds0 on reported use alone

People buy two peptides for libido and erections. One carries an FDA approval whose label rules out the group that buys it most.

Peptides for immune support

3 compounds1 on reported use alone

Sellers offer three peptides for immune support. The one with the best evidence has a 1,106-person trial behind it that found no survival gain.

Peptides for testosterone

4 compounds3 on reported use alone

Four peptides on this site are sold for raising testosterone. Only one has ever been measured against it in people, and only into a vein.

Which compounds people take for which purpose

A filled cell means people take that compound for that purpose. The word in the cell says why it sits there. A regulator or a trial named the purpose, a human study measured something in it, or the practice is the only thing behind it.

◆ 32 compounds across 10 purposes50 pairings in all

Every compound that appears on a goal page, against every purpose, showing on what basis each pairing sits there.
Compound	Weight	Muscle	Skin	Healing	Sleep	Mental health	Longevity	Sex drive	Immunity	Testosterone	Evidence
Tirzepatide	FDA-approved	—	—	—	—	—	—	—	—	—	FDA label
Semaglutide	FDA-approved	—	—	—	—	—	—	—	—	—	FDA label
Liraglutide	FDA-approved	—	—	—	—	—	—	—	—	—	FDA label
Retatrutide	In trials	—	—	—	—	—	—	—	—	—	Human trial
Cagrilintide	In trials	—	—	—	—	—	—	—	—	—	Human trial
Survodutide	In trials	—	—	—	—	—	—	—	—	—	Human trial
BPC-157	—	—	—	Reported	—	—	—	—	—	Reported	no human dose shown to work
Tesamorelin	Studied	—	—	—	—	—	Reported	—	—	Reported	FDA label
PT-141	—	—	—	—	—	—	—	FDA-approved	—	—	FDA label
CJC-1295	Reported	Studied	—	—	Reported	—	—	—	—	—	limited human data
Ipamorelin	Reported	Studied	—	—	Reported	—	—	—	—	—	Human trial
TB-500	—	—	—	Reported	—	—	—	—	—	—	indirect evidence
GHK-Cu	—	—	Reported	—	—	—	Reported	—	—	—	indirect evidence
Sermorelin	—	Studied	—	—	Reported	—	Reported	—	—	Reported	limited human data
MOTS-c	Reported	—	—	—	—	—	Reported	—	—	—	no human dose shown to work
AOD-9604	Studied	—	—	—	—	—	—	—	—	—	limited human data
NAD+	—	—	—	—	—	—	Studied	—	—	—	limited human data
Epitalon	—	—	—	—	Reported	—	Studied	—	—	—	limited human data
Kisspeptin-10	—	—	—	—	—	—	—	Studied	—	Studied	limited human data
DSIP	—	—	—	—	Studied	—	—	—	—	—	limited human data
Hexarelin	—	Studied	—	—	—	—	—	—	—	—	limited human data
IGF-1 LR3	—	Reported	—	—	—	—	—	—	—	—	no human dose shown to work
PEG-MGF	—	Reported	—	—	—	—	—	—	—	—	no human dose shown to work
LL-37	—	—	Studied	Studied	—	—	—	—	Studied	—	limited human data
KPV	—	—	Reported	Reported	—	—	—	—	Reported	—	no human dose shown to work
Thymosin alpha-1	—	—	—	—	—	—	—	—	Approved abroad	—	limited human data
Semax	—	—	—	—	—	Reported	—	—	—	—	limited human data
Selank	—	—	—	—	—	Studied	—	—	—	—	limited human data
Mazdutide	Approved abroad	—	—	—	—	—	—	—	—	—	Human trial
VK2735	In trials	—	—	—	—	—	—	—	—	—	Human trial
Zenagamtide	In trials	—	—	—	—	—	—	—	—	—	Human trial
Pemvidutide	In trials	—	—	—	—	—	—	—	—	—	Human trial

FDA-approved — FDA-approved for this.: FDA approved a named product for this purpose.
Approved abroad — Approved outside the U.S..: A regulator outside the United States approved it for this purpose; FDA has not.
In trials — Being tested for this in trials.: A registered human trial is testing it for this purpose; that is not an approval.
Studied — Measured in a human study.: A human study measured something in this goal, without this being an approved purpose.
Reported — Reported use only.: People take it for this. No human study has measured it for this purpose.

How this section is cut

A compound only appears under a purpose where this site already holds a record putting it there. That record is an approved use, a registered trial aimed at exactly this, a human study that measured something in it, or a documented reported use. Nothing lands here because it sounded like it belonged.

This sweep measured four further purposes the section does not publish whole: performance, hormone support, metabolic health and brain function. Performance and metabolic health repeat the compounds already on the muscle and weight pages, and brain function came down to a single record when the sweep ran. A page whose whole content is another page’s does not earn the reader’s click.

Hormone support is the exception, and it is published as a slice rather than as a category. Four compounds are named alongside testosterone by the search terms people actually type, and only one of the four repeats from the muscle page. That slice is the testosterone page above. The rest of the hormone-support cluster is the growth-hormone roster under a second heading, so it is not published twice.

Where to go next

What peptides are, in plain English

The short definition, common forms and why different peptides cannot be judged as one group.

The skin table, basis by basis

Compare why people use each compound with what human studies have actually measured for skin.

Which testosterone claims have a trial

Almost no page on this site mentions the hormone at all — see which popular claims still have no human evidence.

What is established for weight loss

For weight loss, 12 of 15 compounds have human evidence and 3 rely on reported use alone.

Anxiety and depression: the page beside the pitch

Selank has human anxiety studies and no published human dose.

Which sexual function claims have a trial

The route that was sold is the route that did nothing — see which popular claims still have no human evidence.