Beginner·Routines·3 min read
How to Patch Test (and Why You Should)
The two-minute habit that prevents breakouts, reactions, and wasted products — exactly where to test, for how long, and what to look for.
Patch testing is applying a small amount of a new product to a discreet area of skin before using it on your whole face. It takes minutes and can save you weeks of healing from an avoidable reaction.
How to do it
- Choose a test site — the inner arm or behind the ear are low-stakes areas. Some prefer the jaw or neck for a more face-accurate test.
- Apply a small amount of the new product to that spot once or twice a day.
- Wait 48–72 hours before drawing conclusions. Some reactions take a couple of days to show up.
- If there is no redness, swelling, itching, or breakout, you can reasonably introduce it to your face.
Knowledge check
0 / 1 correct1. How long should you wait to read a patch test?
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