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The hardest-working step in skincare often hides in a tiny dropper. Serums deliver a high dose of active ingredients meant to focus on tone, fine lines, or dry patches while everything else stays the same. If your moisturizer is pleasant but underperforms, a serum may be the upgrade that steadies hydration and glow.
What a Face Serum Actually Does
Serums suspend high levels of ingredients in a light base that absorbs quickly. A thin texture helps the good stuff sink in,…
