Hyaluronic acid is renowned for its superior hydration boosting properties, ideal for targeting dehydrated skin its moisturising properties make it great for nourishing dry skin. How To Use It: Our Hyaluronic Acid Booster Serum is specially formulated with an effective blend of Hyaluronic acid (2%) and Pro – Vitamin B5, apply morning or night post cleansing to leave skin feeling intensely moisturised.