The Vitamin C Brightening Booster can be used two ways: alone as a serum, or, as a booster by adding it to a moisturizer.
By itself as a serum:
To use as a serum, apply 2-3 pea-sized drops to clean, dry skin. In your skincare routine, it should be used after cleansing, and before moisturizing for maximum benefits. When applying, be sure the dropper does not come in direct contact with your skin to prevent contaminating the serum when returning the dropper into the bottle. Can be used AM only, PM only, or both.
As a booster:
To use as a booster, add 2-3 drops to your moisturizer and work into clean, dry skin. In your skincare routine, it should be used after cleansing for maximum benefits. Can be used AM only, PM only, or both.