Avène Hydrance Boost Concentrated Hydrating Serum is a lightweight, fragrance-free facial serum formulated to deliver up to 48 hours of continuous hydration. This 1.0 fl oz (30 mL) product is designed for daily use, particularly for individuals with dehydrated or sensitive skin. The serum features a blend of hyaluronic acid, a naturally occurring molecule known for its ability to attract and retain moisture in the skin, along with Avène’s proprietary active ingredients including Cohederm and Sphingolipids. Cohederm helps reinforce the skin’s natural barrier function, while Sphingolipids support moisture retention and protect against external stressors.

The formula is built on Avène Thermal Spring Water, which is recognized for its soothing and anti-irritating properties, making the serum suitable for reactive or easily irritated skin types. Its texture is described as a light, water-based gel that absorbs quickly without leaving a greasy or sticky residue. This allows it to be layered under moisturizers or makeup without disrupting the finish. The serum is free from parabens, silicones, and alcohol, and is tested under dermatological control to minimize the risk of allergic reactions.

This product is intended for those seeking a hydration-focused serum that provides lasting moisture without heavy or occlusive ingredients. It can be used as part of a morning or evening routine, applied to clean, dry skin before a moisturizer. The 48-hour hydration claim refers to its ability to maintain moisture levels over time when used consistently, though individual results may vary depending on climate and skin condition. Avène Hydrance Boost Concentrated Hydrating Serum is positioned as a straightforward, no-frills option for maintaining skin hydration, with an emphasis on gentle, effective ingredients rather than aggressive claims or complex routines.