research-grade field guides
Learn what peptides actually are.
Learn what peptides are, how they work, and which ones are worth your time and money. Skin and fitness guides are out now.
4,000+ readers
Instant PDF delivery
0 brand deals
The problem
The peptide market runs on confusion: renamed molecules, under-dosed formulas, anecdotes sold as evidence.
Every brand, every influencer, every “guide” has a product to recommend. The information is shaped before it reaches you. peptides³ isn't built that way.
$7B+
Spent on peptide skincare yearly
Most of it on underdosed formulas
90%
Of serums underdose their peptides
Per independent lab testing
60+
Serums graded in The Skin Edition
By dose, not by marketing spend
30
Studies cited across the library
Verifiable. Referenced by page.
A category of one
Peptide guides built on research, not brand deals.
peptides³ publishes one guide per frontier: skin, fitness, hormones. Each one synthesises the peer-reviewed evidence, grades the real products, and tells you exactly how to use what works.
No supplements. No affiliate links. No brand relationships. The grades are the grades.
Cited, not vibed
30 peer-reviewed studies, referenced by page.
Never sponsored
No brand has ever paid to appear in a guide.
Made to be read
Finishable in two evenings. No filler chapters.
Yours for life
Every future revision ships to you free.
The guides
What you get
42 pagesEdition 01
The Skin Edition
The complete guide to topical peptides and what each molecule does inside your skin, which serums are worth the money, and how to build a protocol that holds up to scrutiny.
- 10 molecules decoded: GHK-Cu, Matrixyl, Argireline and more
- 60+ serums graded by actual dose, not marketing spend
- 12 pairings that work, 6 combinations to avoid
- How to read any INCI list like a formulator in 2 minutes
- AM/PM protocol frameworks by skin type and concern
27 pagesEdition 02
The Fitness Edition
The research-grade guide to performance peptides: mechanisms, the evidence behind each compound, how to verify vendor quality, and what the legal landscape actually looks like as of 2026.
- 8 compounds decoded: BPC-157, TB-500, Tesamorelin, CJC-1295, Ipamorelin, AOD-9604, MOTS-c, and 5-Amino-1MQ
- The legal landscape: FDA compounding status and WADA rules
- COA reading guide: how to verify what is actually in the vial
- Bloodwork markers: which ones matter and what to watch for
- The one FDA-approved peptide in this space, and what that actually means
Edition 03 · Coming soon
The Hormone Edition
Kisspeptin, GLP-1s, and the peptides reshaping metabolic health. In research now. Newsletter subscribers get it first, at the launch price.
Get notified at launch
“The only way to make a bad peptide decision is to have bad information. We fixed the information.”
Reader notes
What 4,000 readers say
Paid for itself in a week. One returned serum and one vendor I walked away from. Everything after that is profit.
Sarah Kim
Reader · both editions
I coach forty clients and get asked about peptides every week. I just send the Fitness edition now. It answers better than I ever did.
Marcus Webb
Strength coach · 11 years
Finally someone treats peptides like a subject instead of a sales funnel. Rigorous enough to trust, readable enough to finish.
Priya Raman
Reader since issue 01
Our editions
Pick your guide.
Each edition stands alone. Get both together and save $35, plus the Hormone Edition free on launch day.
Edition 01
The Skin Edition
- 42 pages
- 60+ serums graded by dose
- 12 pairings that work, 6 to avoid
- AM/PM protocol frameworks
$39.99
$59.99Edition 02
The Fitness Edition
- 27 pages
- 8 compounds decoded in full
- COA reading guide
- Bloodwork reference
$39.99
$59.99The Complete Library
- The Skin Edition · 42 pages, 60+ serums graded
- The Fitness Edition · 27 pages, 8 compounds decoded
- Pairing tables, protocol frameworks, and reference charts
- The Hormone Edition free at launch, no upgrade fee ever
- Lifetime updates to every edition
Before you buy
Questions
Read first. Then decide.
Whatever brought you here, a serum, a vial, a podcast, there's a guide that will make you the most informed person in the room.