Did you know?

Did you know an allergic skin reaction can show up 3 days later?

Allergic contact dermatitis is often delayed by 12 to 72 hours, which is why people blame the wrong product. Here's why timing matters.

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Why it’s confusing: an immediate sting is usually irritation, but a true allergic reaction often appears 12 to 72 hours after contact. That delay is why people frequently blame the newest product when the culprit is something from two days ago.

Keeping a simple record of what you used and when makes the pattern far easier to spot.

More detail: Why is my skin reacting to a new product?.

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A note on this content. The Sensitive Skin Lab publishes general educational information, not medical advice. If you suspect you have an allergy or sensitivity, consult a qualified dermatologist or allergist. Product formulations and labels change without notice, so always check the ingredients on the product itself.