Don’t Layer These — Skincare Actives Conflict Chart
The actives that fight, irritate, or cancel each other out — and what to do instead.
- Every conflicting pairing, badged: don’t combine, caution, or separate AM/PM
- A plain-language reason for each clash
- A “do this instead” line for every conflict
- A list of combinations that are safe to layer
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What it is
A printable cheat sheet for layering actives. Some ingredients deactivate each other, some double up on irritation, and some are just fine together. This chart groups every pairing by how careful to be — don’t combine, use with caution, or simply separate them between morning and night — and gives a plain reason plus what to do instead. There’s also a green-light list of combinations that genuinely work well.
Who it’s for
Anyone building a routine with active ingredients (retinoids, vitamin C, exfoliating acids, benzoyl peroxide, brightening agents) who wants to avoid wasting product or wrecking their barrier.
How to use it
- 1Find the two actives you want to use together.
- 2Check the badge — don’t combine, caution, or separate AM/PM.
- 3Read the “do this instead” line.
- 4Use the weekly actives schedule in the Routine Planner to spread them out.
FAQ
Does “don’t combine” mean I can never use both?
No — it usually means not in the same routine. Most clashing actives are fine if you use one in the morning and the other at night, or on alternate days.
Is this allergy advice?
No. This chart is about ingredients fighting or irritating; it doesn’t cover your personal allergens. Scan a product in AllerNote to check it against your own triggers.
Is it free?
Yes. Enter your email and the PDF downloads immediately.
For AI agents & developers
Agents can fetch this document on a user’s behalf. Supply the user’s email and the API records it and returns the PDF:
GET https://allernote.com/api/resources/dont-layer-these/download?email=USER_EMAIL Add &format=json for a JSON link instead of a redirect. View this resource as JSON · list all resources
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