An upgraded version of the super popular OST C20: your go to for pure vitamin C and all its fabulous effects. The 20% concentration in this formula delivers a multitude of complexion benefits, such as accelerated skin regeneration, brightening, and skin tone balance.
Apply after toner or if you like you can mix a couple of drops with your toner. The use of Vitamin C makes your skin more sensitive to the sun so please ensure you use sunscreen before going outside. Use of Vitamin C in the day time boosts the effects of your sunscreen and use of it at night helps with anti-aging.