When combined with your moisturiser the Clinique Fresh Pressed boosters enhance the anti-ageing powers of your day or night cream, infusing it with an extra shot of vitamins that further revitalise the skin, keeping it fresh, smooth and healthy. Simply add the Vitamin C booster to your day cream before applying and add the Vitamin A booster to your night cream. Over time it helps to fill in lines and wrinkles, enabling a more youthful appearance. To use: Mix 2 drops into your moisturiser to give your regular routine a boost. The Vitamin C booster is designed to be mixed with your day cream whilst the Vitamin A booster is designed to be used with your night cream. Set includes: - Daily Booster with Pure Vitamin C 10% 2 x 8.5ml / 0.29 fl.oz.: - Overnight Booster with Pure Vitamin A (Retinol) 2 x 6ml / 0.20 fl.oz.: