Cos De BAHA's hyaluronic acid serum delivers high-quality hydration. This potent serum features a 1% (10,000 ppm) solution of hyaluronic acid powder, aged at low temperatures for 24 hours. The serum provides intense moisture, promoting supple skin. With its dedication to effective ingredients and formulations, Cos De BAHA strives to create products that are both safe and beneficial for the skin.