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Here is a simple step-by-step approach: Choose a product with a low, cosmetic-grade concentration Patch test on a small area of skin for 24 to 48 hours Start with application every other day Watch for redness, itching, stinging, or dryness Increase to daily use only if your skin tolerates it well Pair with sunscreen during the day, since new skincare routines can increase sensitivity If irritation develops, stop use and speak with a healthcare provider before continuing