Eau Thermale Avène Hydrance Boost Hydrating Serum 1.0 fl oz — 48H Hyaluronic Acid, Lightweight Water-Gel

This fast-absorbing serum combines high-molecular-weight hyaluronic acid, Vitamin B3, and a natural moisturizing factor booster to replenish moisture, support the skin barrier, and leave skin feeling soothed and supple. The non-greasy, refreshing texture layers easily under creams or makeup and comes in a precise dropper bottle for controlled application. The formula is made with 98% naturally derived ingredients and excludes common irritants and certain synthetics to prioritize gentle hydration.

How quickly will I feel hydration after applying Hydrance Boost?

You should notice an immediate surge of moisture and a cooling, fresh skin feel right after application. The water-gel texture is designed for rapid absorption so skin feels comfortable and less tight within minutes.

• Instant thirst-quenching water-gel that sinks in fast
• High-molecular-weight hyaluronic acid for surface hydration
• Refreshing, non-greasy finish suitable for layering

Can this serum help skin stay hydrated all day and night?

The formula is created to boost and help maintain hydration for extended periods — clinical testing cited up to 48 hours of lasting moisture. It strengthens the skin’s natural hydration mechanisms so moisture retention improves between applications.

• Provides up to 48 hours of long-lasting hydration (study-based claim)
• NMF Booster stimulates skin’s own moisture-retaining factors
• Vitamin B3 supports skin barrier resilience to reduce moisture loss

Is Hydrance Boost suitable for sensitive or reactive skin?

The formula avoids alcohol, parabens, silicone, mineral oil, and several other common irritants, aiming for a gentle profile. Because it focuses on hydration and barrier support with mostly natural ingredients, many with sensitive skin find it calming, but patch testing is recommended if you are highly reactive.

• 98% naturally derived ingredients with a gentle approach
• Free from paraben, alcohol, mineral oil, phenoxyethanol, and harsh additives
• Light, non-comedogenic texture that layers under other skincare

How do I add this serum into my daily routine?

Use the dropper to apply a few drops to clean, damp skin, then smooth it across face and neck; follow with your moisturizer or sunscreen in the morning. It also works as a booster beneath richer creams for added hydration on dry days or during seasonal shifts.

• Apply to freshly cleansed, slightly damp skin for best absorption
• Use morning and/or evening before moisturizer; wear sunscreen in daytime
• Dropper format delivers precise dosing and minimal waste

Who is this for: Avène Hydrance Boost Concentrated Hydrating Serum is crafted for anyone with dry, dehydrated, or combination skin seeking immediate and sustained moisture without a heavy feel. It’s especially helpful for those who want to reinforce their skin barrier, prefer formulas with a high proportion of natural ingredients, or need a lightweight booster that blends seamlessly under other skincare or makeup.

Ingredients

Avene Thermal Spring Water (Avene Aqua), Propanediol Glycerin, Pentylene Glycol Diglycerin, 1.2-Hexanediol, Niacinamide, Sodium Hyaluronate, Betaine, Citric Acid, Fragrance (Parfum), PCA, Polyglyceryl-4 Caprate Sclerotium Gum, Sodium Citrate, Sodium Hydroxide, Water (Aqua).