For skin that feels dry, tight, dehydrated, or flat, Face Republic Hydro Boost Solution Serum 45ml adds a lightweight hydration step for a softer, smoother, plumper-looking finish. The serum absorbs comfortably without a sticky coating and layers easily beneath moisturizer, sunscreen, and makeup.The formula features an 11-type hyaluronic acid complex with adenosine, allantoin, glycerin, and botanical extracts. The different humectant forms support a moisturized, refreshed feel while the serum fits naturally after toner or essence and before cream. Use it when skin needs extra bounce and dewy-looking comfort without a heavy texture.Apply a small amount to the face and neck after toner or essence, gently patting until absorbed. Add another light layer when skin feels especially dry, then seal it with moisturizer. Use morning or evening, and finish with sunscreen in the morning before makeup.