Shop by routine step

Loading categories…

products, each with a full ingredient readingBrowse all

Already have a favourite?

Find its dupes Compare two products

Check a formula

You need: an ingredient list

Ingredient CheckerAnalyze the ingredients in any cosmetic product.
Fungal Acne CheckerFlags the fatty acids, esters and oils malassezia feeds on.
Seb Derm CheckerThe same yeast drives seb derm, so the same check applies.
Pore-Clogging CheckerFlags comedogenic rating 3+. Unrated reads “not rated”, never “clear”.

Find products

Dupe FinderProducts with a formula close to one you use.You need: a product you use
Compare ProductsTwo products side by side, check by check.You need: two products

Look something up

Ingredient IndexAll 33,625 ingredients from the EU CosIng register.You need: an ingredient name

Products Dupes Compare Check a product

Tools

Ingredient Checker
Fungal Acne Checker
Seb Derm Checker
Pore-Clogging Checker
Dupe Finder
Compare Products
Ingredient Index

Shop by routine step

Loading categories…

HISTIDINE HCL

Function: hair conditioning, skin conditioning
CAS: 645-35-2 / 5934-29-2
Appears in: 3 products in our catalogue

A plain reading of what is in a cosmetic product. Where the data does not support an answer, this says so instead of guessing.

Check a formula

Ingredient Checker
Fungal Acne Checker
Seb Derm Checker
Pore-Clogging Checker

Find products

Dupe Finder
Compare Products

Look something up

Ingredient Index

Browse

All products
Products with dupes

i

Nothing here is medical advice, and a highlight that reads “not assessed” means we do not have the data to answer — not that the answer is no.

© 2026 SkinMama Atlas

Ingredient data from CosIng, the EU cosmetic ingredient register.