Obagi Professional-C Serum 15% (1 fl oz)
$125.00Price
Professional-C Serum 15% is a water-based vitamin C serum formulated with L-ascorbic acid, which Obagi describes as the purest form of vitamin C. The manufacturer states it helps brighten and even skin tone, strengthens the skin's antioxidant defenses by neutralizing free radicals, and improves the appearance of fine lines and wrinkles. Obagi positions the 15% concentration for normal to combination skin, with lower and higher strengths available for other skin types. Directions call for 5-7 drops in the morning after cleansing and toning, before moisturizer, followed by SPF prior to makeup. Because L-ascorbic acid degrades over time, Obagi advises using the bottle within three to six months of first opening.
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