Episilk Hyaluronic Acid Serums – Hyaluronic acid is one of the most ‘water loving’ molecules in nature and can be described as “natures moisturizer”. This heavily researched substance is proven to be tissue friendly, making it excellent for keeping skin young and healthy! Choose from PHA serum, Q10 serum and Pepha®Tight. These serums will effectively protect, hydrate, nourish and rejuvenate your skin, beautifully!