Brand from United States: Skin Ceuticals. A multi-functional corrective serum to help amplify skin's hyaluronic acid levels.H.A. Intensifier is a multi-beneficial corrective serum proven to amplify the skin’s hyaluronic acid levels by 30%. This unique formulation contains a high concentration of pure hyaluronic acid, Proxylane™, and botanical extracts of licorice root and purple rice to support the skin’s hyaluronic acid levels and deliver surface hydration, helping to improve the visible appearance of firmness, smoothness, and facial plumpness. This hyaluronic acid serum may be used as part of a home skincare regimen after dermal fillers.How to use:Once or twice daily, apply 4-6 drops to the palm of the hand and dab onto forehead, cheeks, chin, and neck.Blend the product into skin. If using in the morning, apply after a SkinCeuticals vitamin C antioxidant serum and before a SkinCeuticals sunscreen.