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The Complete Peptide Reference Library

The Science of
Peptides,
Simplified.

200+ peptide profiles. 9 category guides. Every compound clearly profiled: what it is, how it works, what the science shows. FDA status marked on every peptide.

200+
Peptides Documented
11
Category Guides
100%
Research-Backed
Weight Loss & Metabolism
Anti-Aging & Longevity
Sexual Function & Libido
Muscle Recovery & Healing
Skin, Hair & Aesthetics
Cognitive Enhancement
Sleep & Stress Management
Gut Health & Immune
Specialty & Emerging
Peptexa Peptides 101 guide cover, an introduction to peptide science with key terms and concepts explained
Our Philosophy
Your body already knows how to heal.
Peptides just remind it how.

Peptides are the body's original messengers: short chains of amino acids that signal, repair, and restore. Peptexa exists to give you the education you need to use them wisely, safely, and effectively.

Every guide is built to execute

Not just theory. Every profile gives you exactly what you need to make a confident, informed decision.

01

Full Peptide Profiles

What it is, how it works, what it does. In plain language. No PhD required.

02

Mechanism of Action

How each peptide signals, binds, and interacts in the body. Explained in plain language.

03

Research Summary

What the peer-reviewed studies actually show. Summarized clearly for non-scientists.

04

Safety Profiles

Side effects, contraindications, and who should avoid each peptide. Clearly stated.

05

Compound Profile

Structure, classification, half-life, and other key compound details for each peptide.

06

Legal Status

FDA status, availability, and sourcing context for every peptide. No guesswork.

Every goal. Covered.

🔥
Weight Loss & Metabolism
24 peptides
Anti-Aging & Longevity
32 peptides
💫
Sexual Function & Libido
21 peptides
💪
Muscle Recovery & Healing
31 peptides
Skin, Hair & Aesthetics
28 peptides
🧠
Cognitive Enhancement
23 peptides
🌙
Sleep & Stress Management
19 peptides
🛡️
Gut Health & Immune
24 peptides
🌿
Specialty & Emerging
27 peptides

Evidence Ratings.
Not Hype.

Every peptide in every guide is rated by scientific evidence strength. Not popularity, not marketing claims, not forum consensus. Stars measure what the published research actually shows.

★★★★★
Strong Clinical Evidence
Multiple high-quality human clinical studies consistently support the effect.
★★★★☆
Good Human Evidence
Meaningful human data exists, but may be limited by study size or design.
★★★☆☆
Preliminary Human Evidence
Some human research exists, but early, limited, or mixed.
★★☆☆☆
Primarily Preclinical
Evidence comes from animal or lab studies. Limited or no human data.
★☆☆☆☆
Mechanistic Only
Plausible mechanism exists, but little direct evidence for the claimed outcome.
★★★★☆ / ★★☆☆☆
Split Ratings
Some compounds have different evidence by use (topical vs. injectable, approved vs. off-label).

Important: Star ratings measure evidence strength, not safety. A high-rated compound may still carry risks. A low-rated compound is not necessarily dangerous. These ratings are independent of regulatory status.

Choose your category

Each guide is a complete standalone reference for education only. No dosing advice. just the science, clearly explained.

Available Now

The Complete Collection. All 9 Guides

200+ peptide profiles. Every category. One price.  $179.91 if purchased separately

Peptexa Anti-Aging guide cover, evidence review of peptides studied for longevity and cellular repair
Longevity

Anti-Aging & Longevity

Longevity peptides are where the hype gets loudest and the evidence gets thinnest. 32 compounds profiled, from FDA-approved tesamorelin to Russian bioregulators to mitochondrial peptides most people haven't heard of. Honestly rated.

  • 32 peptide profiles
  • FDA status on every compound
  • Education only. No dosing
Peptexa Sexual Health guide cover, evidence review of peptides studied for libido and sexual function
Sexual Function

Sexual Function & Libido

PT-141 is FDA-approved. Most others are not. 21 compounds profiled with real trial data separated from anecdote. You'll know which ones have clinical evidence and which ones are riding on forum posts.

  • 21 peptide profiles
  • FDA status on every compound
  • Education only. No dosing
Peptexa Muscle Recovery guide cover, evidence review of peptides studied for tissue repair and athletic recovery
Recovery

Muscle Recovery & Healing

BPC-157 and TB-500 dominate the conversation online, but what does the actual research say? 31 compounds profiled. Strong animal data separated from real human evidence. No hype, just honest ratings.

  • 31 peptide profiles
  • FDA status on every compound
  • Education only. No dosing
Skin Hair
Aesthetics

Skin, Hair & Aesthetics

The skincare industry sells peptides hard. How many actually have clinical evidence? 28 compounds profiled. Matrixyl and GHK-Cu lead the pack. Most cosmetic peptides don't. You'll see which is which.

  • 28 peptide profiles
  • FDA status on every compound
  • Education only. No dosing
Peptexa Cognitive Enhancement guide cover, evidence review of peptides studied for focus and neuroprotection
Cognitive

Cognitive Enhancement

Semax. Selank. Cerebrolysin. Approved in Russia, research chemicals in the US. 23 compounds profiled with international approval status clearly marked. You'll see which ones have real human data and which ones don't.

  • 23 peptide profiles
  • FDA status on every compound
  • Education only. No dosing
Sleep Stress
Wellness

Sleep & Stress Management

Sleep peptides have some of the weakest evidence in the peptide space, and we say that up front. 19 compounds profiled. If the evidence isn't there, we tell you. No wishful thinking.

  • 19 peptide profiles
  • FDA status on every compound
  • Education only. No dosing
Gut Health
Gut & Immune

Gut Health & Immune

BPC-157 for gut healing. KPV for inflammation. Thymosin Alpha-1 for immunity. Two FDA-approved drugs and a lot of research compounds with strong animal data but limited human proof. 24 compounds, honestly rated.

  • 24 peptide profiles
  • FDA status on every compound
  • Education only. No dosing
Peptexa Specialty and Emerging guide cover, evidence review of newer peptides under active research
Advanced

Specialty & Emerging

The frontier. Triple agonists in Phase 3 trials. Senolytic peptides targeting zombie cells. Wnt pathway modulators. 27 compounds that don't fit neatly into other categories because they're too new or too niche. Some will be household names in two years. Some won't survive Phase II.

  • 27 compound profiles
  • Clinical trial status on every compound
  • Education only. No dosing

Built to be trusted

🔬

Research-Backed

Every profile grounded in peer-reviewed studies. not forums or anecdotes.

📋

Clear Research Summaries

What studies show, what they don't, and why it matters. In plain language.

🛡️

Safety First

Full side effects, contraindications, and warnings for every peptide.

Instant Access

Download immediately. Yours forever. no subscriptions, no recurring fees.

Why you won't find dosing here

We don't publish dosing. on purpose. Dosing for unapproved compounds isn't reference information; it's medical advice, and that belongs with your doctor or vet. What we give you instead is the part nobody else does honestly: the mechanism, the evidence, how strong it actually is, and the FDA status. so you walk into that conversation informed, not sold to.

The Peptexa Newsletter

FDA updates, new research, and compound deep-dives. written for people who want the science, not the sales pitch. No spam. Unsubscribe anytime.

No spam. Unsubscribe anytime.

Evidence-Ranked Peptide Guides

Every category. Every compound. Rated by what the science actually shows.

🔥 Weight Loss & Metabolism
24 compounds ranked
💪 Muscle Recovery & Healing
31 compounds ranked
⏳ Anti-Aging & Longevity
32 compounds ranked
✨ Skin, Hair & Aesthetics
28 compounds ranked
🧠 Cognitive Enhancement
23 compounds ranked
💫 Sexual Function & Libido
21 compounds ranked
🌙 Sleep & Stress
19 compounds ranked
🛡️ Gut Health & Immune
24 compounds ranked
🌿 Specialty & Emerging
27 compounds ranked
👩 Peptides for Women
Cross-category guide
⚡ Peptide Stacks
Popular combinations
📖 Peptides 101
Start here if you are new