Skin sensations
Why do products sting now when they never used to?
Short answer
A changed barrier, a new formula, overuse of actives, or contact irritation can make a familiar product feel different.
Full answer
Why do products sting now when they never used to?
The same product can feel different when the skin barrier is disrupted. Cleansing, exfoliation, retinoids, weather, illness, or friction can all change tolerance. Products can also change formula or expire.
Stop the product that clearly causes burning, keep the routine simple, and avoid testing several replacements at once. Persistent burning, swelling, blistering, or a rash needs medical advice.