Peptide reviews on one yardstick.
Every compound scored on the same five dimensions, published evidence, mechanism plausibility, human data, vendor trust, regulatory posture, and ranked. Last database refresh 2026-04-29.
The peptides you can actually buy, ranked.
Collagen peptide powders and peptide skincare, held to the same evidence yardstick as the research compounds. Rankings set by the ingredient panel and the published trials; commissions never reorder a list.
The best collagen peptides
Our pick: Momentous Grass-Fed Collagen
See the rankings
The best peptide serums
Our pick: The Ordinary Copper Peptides 1%
See the rankingsStart with the evidence: Collagen peptides, the evidence · Peptides in skincare · Copper peptides (GHK-Cu)
The research-peptide literature, ranked.
Nine compounds in active rotation, scored on a 10-point composite. Updated quarterly.
Top four on every dimension.
Higher is better. Numbers are tabular, the methodology is on the methodology page, and yes, vendor trust counts because counterfeit risk is real.
New reviews and evidence files.
Every post is graded against the published literature and dated, and we revise with a note when the file changes.
Anti-aging peptides, what the longevity science does and does not show
Anti-aging peptides on the evidence: which have real human or mechanistic data, which rest on cell-culture longevity signals, and why the topical anti-aging peptides are better supported than the injectable ones.
Peptide bioavailability, the reason the needle keeps winning
Peptide bioavailability on the science: why the gut destroys most peptides, what the exceptions and absorption data show, and why oral peptide products face a hard chemical problem.
Peptide half-life, the property that shapes dosing intervals
Peptide half-life on the science: what half-life means, why native peptides clear in minutes while engineered analogs last far longer, and how modifications such as albumin binding extend it.
Peptide versus protein, and where polypeptides fit
Peptide vs protein on the chemistry: how chain length and folding separate peptides, polypeptides, and proteins, why the boundary is a convention rather than a hard rule, and why the distinction matters for how they behave.
Peptides for healing, sorted by how much evidence exists
Peptides for healing on the evidence: which repair-associated peptides have human data, which rest on animal wound-healing models, and why the strongest healing peptide is one most people already know.
Are peptides legal, and what that question actually means
Are peptides legal on the evidence: why the answer depends on approval status, the research-use-only label, and compounding rules, and why legal to sell is not the same as approved to use.
Five shelves. Every review fits one.
Each shelf carries the reviews and the comparison tables for a single research domain.
Five dimensions, weighted, on every review.
Every score on Pepvise breaks down into the same five components. Read the full methodology if you want to argue with the weights, we will hear you out.
Read the full methodologySample size, replication count, and study design across PubMed, ClinicalTrials.gov, and FDA filings. Mouse-only literature gets capped.
Whether the proposed mechanism is consistent with established cell biology, or whether it is back-fitted to the marketing claim.
Trial phase, sample size, follow-up length, and the gap between rodent dose and the human dose actually studied.
Counterfeit incidence, third-party assay availability, regulatory posture of typical sources. Not an endorsement of any vendor.
FDA approval status, 503A/503B compoundability, WADA status, and the realistic legal pathway for a US patient or athlete.
On the pipeline.
Twelve reviews live, eight more in active drafting. Here is what is coming and when.
| Compound | Stage | Editor | Target pub |
|---|---|---|---|
| EpithalonEpitalon | Drafting | M. Otieno | 2026-06-12 |
| Thymosin α1 | Editor review | S. Han | 2026-06-19 |
| Selank | Pre-publication hold | M. Otieno | 2026-07-03 |
| Semax | Pre-publication hold | M. Otieno | 2026-07-10 |
One review a week. No vendor links. Ever.
When a new compound enters the database, or when an existing review gets a score change, subscribers hear about it first.
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