How to patch test a new skincare product
Updated · 3 min read
A patch test is a quick, low-effort way to check how your skin gets along with a new product before you apply it all over your face.
Why patch test at all
Everyone’s skin is different, and even gentle formulas do not suit everyone. Trying a small amount on a small area first means that if a product does not agree with you, only a small patch of skin is affected.
How to do it
Pick a discreet spot with skin that is reasonably similar to your face.
- Choose a spot such as behind the ear, the side of the neck, or the inner forearm.
- Make sure the area is clean and dry.
- Apply a small amount of the product, as you would normally use it.
- Leave it on and repeat once or twice a day for several days.
- Watch the area for any redness, itching, stinging or bumps.
What to watch for
A brief, mild tingle can happen with some products, but ongoing stinging, burning, itching, redness, swelling or a rash are signs the product is not right for you.
If irritation occurs
Stop using the product and rinse the area with lukewarm water. If irritation is severe or does not settle, contact a healthcare professional.
Keep products out of the eyes; if contact occurs, rinse thoroughly with water.
Once it passes
If the patch looks and feels normal after several days, start using the product on your face — once a day at first — and introduce it before adding anything else new.
A patch test lowers the chance of a surprise, but it is not a guarantee. Keep an eye on how skin feels in the first weeks of any new product.
Questions
How long should a patch test last?
Several days of applying the product to the same small area is a sensible approach, as some reactions take a little time to appear.
Where is the best place to patch test?
Behind the ear, the side of the neck or the inner forearm are common choices. Pick somewhere discreet with skin similar to your face.
Do I need to patch test every product?
It is a good habit for any new leave-on product such as a serum, cream or eye cream, especially if your skin is easily irritated.
What should I do if a product irritates my skin?
Stop using it and rinse the area with lukewarm water. If irritation is severe or continues, contact a healthcare professional.
For external cosmetic use. Patch test new products and stop use if irritation occurs. See ingredients & safety.
