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Cos De BAHA’s Retinol 2.5% Solution is a premium facial serum featuring a potent 2.5% retinol complex with 0.135% pure retinol powder, enhanced by hydrating hyaluronic acid and protective Vitamin E. Designed for gentle yet effective anti-aging treatment, it smooths fine lines, evens skin tone, and boosts collagen production. Ideal for evening use, this 1 fl oz serum supports skin renewal and delivers a youthful, radiant complexion without the need for a prescription.

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