Hydra serum 10% 50ml 7 layered hyaluronic serum BIGGER SIZE (best seller)Highest percentage of hyaluronic acid which makes this a high end skin care hyaluronic serum, usually most hyaluronic serums contain up to 2% to 5% hydra serum. Bigger size 50 ml! Higher results ! GAME CHANGING! Contains over 10% 7 types of hyaluronic acid and hyaluronic acid solution. Topical use, apply needling pen, derma roller. Best for Microneedling Hydra serum is a everyday need for the face. These serums are specifically designed for