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Discover Olay Total Effects Firming Youth Serum, a multi-action 7-in-1 formula for younger-looking skin. Powered by Niacinamide, known for strengthening the skin barrier and fighting the signs of ageing, and Collagen Peptide, a molecule made up of a sequence of amino acids that helps to reduce the appearance of fine lines & wrinkles. This non-greasy serum penetrates up to 10 surface layers deep for firmer, lifted-looking skin. Clinically tested, this serum instantly hydrates and smooths while re
