Skin care
Modern clean
19 / SKIN CARE · MODERN CLEAN
New face product patch-test rhythm
A measured one-product introduction that gives your skin time to show its response.
The problem
Your skin response is hard to read when several new face products arrive in the same week.
The public answer
Patch test one product, record the date, and add it to one small area before you change anything else.
Duration: 5 minutes to apply; observe for 24–48 hoursFrequency: Patch test once for each new product and wait through the stated observation period before wider use.evidence informed

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