Ingredient Conflict Checker
Select the actives in your routine and see what can be layered together, what to separate into AM and PM, and which "conflicts" are myths.
Tick everything you currently use. Nothing is sent anywhere or stored.
How to read the results
Three verdicts. Fine together means there is no real reason to separate them. Take care means the combination works but tends to cause irritation, so alternate rather than stack. Separate means one ingredient measurably reduces the effect of the other, or the pH ranges are incompatible, and you are wasting a product by combining them.
Most published "conflict charts" are copied from each other and repeat formulation theory as if it were clinical evidence. Where a rule here rests on theory rather than human data, the result says so.
This article is for information only and is not medical advice. Nothing here is intended to diagnose, treat, cure or prevent any disease. Speak to a qualified healthcare professional before changing anything about your health routine.