Hyaluronic Acid has very high water retention properties, where 1 gram of acid can hold 6 litres of water. Hada Labo contains a combination of nano hyaluronic acid and normal hyaluronic acid that give the skin superior moisturizing effects. Another ingredient in Hada Labo is Retinol Vitamin A that works to help the skin to look young as collagen and elastin is produced. Arbutin helps to whiten the skin - for those who want to look fairer. And for the exfoliating range, Alpha Hydroxy Acid (AHA) is used as a gentle agent to promote the renewal of skin cells.