Ingredient compatibility, explained

Does your skincare routine fight itself?

We compare the real ingredient lists of the products you use together and flag irritation risk, cancelled-out actives, and combinations worth a second look.

Educational tool only. Not medical advice.

How it works
01

Snap your products

Photograph the front & back of a bottle — or just search by name.

02

Confirm products

Check what we found, add anything we missed, build your routine.

03

See what clashes

A plain-language report: what may clash, why, and what to do instead.

What it checks

Irritation worth a second look

When two products lean on strong actives at once, we highlight pairings that some people find irritating — so you can decide how to space them out.

Actives that may cancel out

Some ingredients work best at different pH levels or times of day. We point out combinations where one may blunt the other's intended effect.

Duplicated or over-used actives

Layering several products with the same active can add up faster than you'd expect. We flag overlaps so the full picture is easy to see.

Educational, not medical

SkinCheck explains how the ingredients in your products may interact, in plain language, so you can make more informed choices and better questions for a professional. It does not diagnose conditions, recommend treatments, or replace advice from a dermatologist. Everyone's skin is different — always patch test a new product, and check with a dermatologist about concerns.

See how your routine fits together

Add the products you use and get a plain-language report in seconds — no account required to try it.