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An evidence-first ingredient checker. Photograph a product’s ingredients list — we show which actives have published evidence, and how it grades.

The composition scanner

What’s actually in your cream?

Photograph the INGREDIENTS

list on the back (starts with Aqua/Water),

not the front of the pack.

By continuing you agree your photo is sent to Anthropic for reading. It isn’t stored. Privacy

Issue N°01 - The Evidence RegisterEvidence · Provenance · RestraintAnno MMXXVI
An evidence-first skincare reference - and a shop that opens only where the law allows

What actually works on skin - graded on the evidence.

Every ingredient graded A to F on published trials, not marketing. Provenance assayed, conflicts disclosed. We sell only in the lawful lanes.

Read the evidence →Take the 60-second quiz →
§ I - Popular guides

The questions everyone asks, answered on the evidence.

All guides →
The evidence quiz · 60 seconds
What does your skin actually need?
Find out by the evidence →
§ II - The register

192 compounds, each graded A to F.

Open the full register →
GradeCompoundFunction tagsStatus · USAction
A
Niacinamide (Vitamin B3)nicotinamide
Skin & aestheticLawful cosmetic ingredient · CosmeticSoon ↝
A
Hyaluronic Acid (Sodium Hyaluronate)HA
Skin & aestheticLawful cosmetic ingredient · CosmeticSoon ↝
B
Azelaic AcidAzA
Skin & aestheticLawful cosmetic (lower-strength / derivative); prescription at 15–20% · CosmeticFollow ↝
A
Retinol (Vitamin A)vitamin A alcohol
Skin & aestheticLawful cosmetic ingredient · CosmeticFollow ↝
A
Ceramidesceramide NP
Skin & aestheticLawful cosmetic ingredient · CosmeticFollow ↝
B
Bakuchiolmeroterpene
Skin & aestheticLawful cosmetic ingredient · CosmeticFollow ↝
B
Tranexamic AcidTXA
Skin & aestheticLawful topical cosmetic ingredient · CosmeticFollow ↝
+ 185 more, incl. research & longevity peptides →
§ III - The taxonomy

Fourteen fields, tagged not foldered.

§ IV — On method

Graded on evidence. Verified by assay. Free of conflict.

A grade you can trust

A letter for each compound × outcome, drawn from trials and meta-analyses — with effect size and every caveat spoken plainly. The preclinical never poses as proven.

Provenance, assayed

There is no production yet, so there are no batch assays to show. When there is, this is the commitment: independent testing, each result verifiable by its task number, and a blind retest on request. Until then this block describes an intention, not a practice.

Free of interest

One person writes these grades: Yakiv Bilenko, who also runs Vallydia and sells its serums. There is no independent reviewer, and none is promised. What can be checked instead is the record: our own copper peptide is graded B, the competing peptides B, B and C. We do not grade upward what we profit to sell.

§ V - The Journal

The evidence, examined.

Not quick answers - method, regulation, and the odd viral claim put to the test. Where the popular guides answer, these show the working.

Vallydia

A neutral reference and a lawful-lane shop. Information for those who seek it — never promotion.

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This site provides neutral scientific reference and sells only products lawful in your region. Nothing here is medical advice, a recommendation, or an offer to supply unapproved medicines. No dosing or administration is published for research compounds. Cosmetic peptides per Regulation (EC) 1223/2009. Unapproved injectable peptides are neither sold nor advertised in the EU (Directive 2001/83/EC, Title VIII). © 2026 Vallydia.

Vallydia - The Evidence Register | Evidence-graded skincare