5. Sunday Riley Clean Rinse Clarifying Scalp Serum With Niacinamide
Niacinamide is not just for the skin on your face, as the Sunday Riley Clean Rinse Clarifying Scalp Serum With Niacinamide ($48) promotes hair growth and a healthy scalp by dissolving sebum, exfoliating dead skin cells, and clearing away pollution and product buildup on top of your head as well.
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