Home / Obagi / Obagi Professional C Serum 20% Obagi Professional C Serum 20%$133.00 Highest concentrated serum with 20% L-ascorbic acid (Vitamin C), best suited for normal to oily skin. Helps minimize the appearance of fine lines and wrinkles. 1fl oz Obagi Professional C Serum 20% quantity Add to cart SKU: O Pro-C 20% Category: Obagi Tags: Serum, Vitamin C Product ID: 4038 Related products View Add to cart Obagi Hydrate Facial Moisturizer $52.00 View Add to cart Obagi Sun Shield Matte Broad Spectrum SPF 50 Lotion $50.00 View Add to cart Obagi Professional Elastiderm Eye Serum Roller $116.00 View Add to cart Obagi Gentle Cleanser $43.00