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  • 2.5% Retinol Serum tutorial

    2.5% Retinol Serum Tutorial: Step-by-Step Guide

    A high-strength retinol routine does not need to feel like a gamble. This 2.5% Retinol Serum tutorial gives you the essential method: apply a pea-sized amount at night, begin gradually, moisturize afterward, and wear broad-spectrum SPF 30 or higher every morning.