This product adopts a 100% oil-free formula with an extremely refreshing watery gel texture. It turns into water droplets instantly upon skin contact, penetrates and absorbs quickly, with no residue, no greasiness and no stuffy feeling, making it the first choice for oily skin and summer moisturizing. The formula takes multi-molecular weight hyaluronic acid as the core hydrating ingredient. Large molecules lock water on the surface, and small molecules penetrate deep into the skin base for hydration, achieving layered three-dimensional hydration, making the skin plump and hydrated from the inside out. At the same time, panthenol and trehalose are added to enhance skin hydration and relieve dryness and water shortage caused by sun exposure and air-conditioned environments. The product contains no oil or heavy occlusive agents, will not clog pores or induce acne, and is safe for oily acne-prone skin. After application, it presents a refreshing, hydrated matte finish with no shine. Follow-up base makeup fits smoothly without pilling. It can be used as daily moisturizer, or applied thickly as a hydrating emergency mask. Especially suitable for hot summer, oily/combination skin and users who prefer refreshing skin feel.