Redness and itching after Garnier Vitamin C serum—sign of allergy or normal? Should I keep using it?

Vitamin C serums are powerful antioxidants, but when used incorrectly or on sensitive skin, they can cause itching, burning, and redness. Garnier uses vitamin C derivatives, but even these may not suit everyone.

How to tell an allergy from skin adjustment:
An allergic reaction appears quickly: intense redness, itching, or a rash.

Irritation or adjustment may involve mild burning or dryness, especially after the first use, and usually subsides within a few days.

What to do:
Stop using the product immediately if the symptoms are strong.

Apply a soothing cream, preferably with ceramides or panthenol.

In the future, try a product with a lower concentration of vitamin C, and do a patch test on your wrist 24 hours before applying it to your face.

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