Skincare Ingredient Checker

Select the active ingredients you want to use and instantly see which ones clash — like retinol with AHA/BHA or benzoyl peroxide — plus how to schedule them safely. Free skincare ingredient checker.

Select the actives you want to use together:

Pick at least two ingredients to check for conflicts.

General guidance, not medical advice. Patch-test new combinations and introduce actives one at a time.

How to use the Skincare Ingredient Checker

  1. 1

    Tap the actives you want to combine.

  2. 2

    See any 'avoid' or 'use with care' warnings.

  3. 3

    Read how to schedule them (AM vs PM).

  4. 4

    Introduce new actives one at a time.

Frequently asked questions

Can I use retinol and vitamin C together?

It's best to separate them — vitamin C in the morning, retinol at night — since together they can irritate and are most effective at different times.

Is niacinamide and vitamin C a real conflict?

No — that's a largely debunked myth. Modern formulations of niacinamide and vitamin C can be used together safely.

Is this medical advice?

No — it's general guidance. Patch-test new combinations and consult a dermatologist for persistent concerns.

Tips & discussion

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