The TIAM My Signature C Source (originally known as O.S.T C20 Original Pure Vitamin C Serum) is a Vitamin C Serum with 20% pure Vitamin C. This powerful serum brightens and brings back radiance to the skin, while removing blackheads and treating pigmentation from acne scars. The star ingredient, Vitamin C, is a powerful antioxidant that provides the best in anti-aging protection by reducing fine lines and boosting collagen protection.
After applying toner, spread the C Source on targeted areas. Alternatively, you can also mix one or two drops of the C Source with your toner. Follow up with the TIAM My Signature A+ Cream afterwards to maximise and boost the effectiveness of this serum. Make sure to always use a sunscreen when going outside after applying the C Source.













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