Eucerin Immersive Hydration Smoothing Face Serum — 1 fl oz Ultra-Light Hyaluronic Acid for 24-Hour Hydration & Plumping

Eucerin Immersive Hydration Smoothing Face Serum is an ultra-lightweight hyaluronic acid serum that boosts skin hydration for up to 24 hours and helps reduce the visible look of fine lines and wrinkles.

This fast-absorbing serum combines multi-weight hyaluronic acid in a concentrated formula to deliver hydration at different skin layers. The texture feels nearly weightless, provides an instant plumped sensation, and is designed to sit comfortably under moisturizers and sunscreen. Formulated to be non-comedogenic and fragrance-friendly, it fits into morning and evening routines and pairs well with Eucerin Immersive Hydration Daily Lotion SPF 30 and Immersive Hydration Night Cream.

How does this serum hydrate skin throughout the day?

The serum uses two molecular sizes of hyaluronic acid to target both the surface and the upper layers of skin. Macro-sized molecules form a hydrating barrier on the skin’s surface, while smaller micro molecules penetrate into upper layers to increase moisture where it’s needed most. Clinical formulation aims to support visible smoothness and an immediate plumped feel.

• Two-size hyaluronic acid system: surface and deeper-layer hydration
• Concentrated levels for efficient moisture delivery
• Provides up to 24-hour hydration when used as directed
• Lightweight texture absorbs quickly without a greasy finish

Will this serum clog pores or irritate sensitive skin?

Eucerin Immersive Hydration Serum is non-comedogenic, formulated to minimize pore blockage, and suitable for sensitive skin types. The fragrance is skin-friendly and free from common fragrance allergens to reduce the chance of irritation. As with any new product, patch testing is recommended for highly reactive skin.

• Non-comedogenic formulation that won’t block pores
• Skin-friendly fragrance, free from common fragrance allergens
• Suitable for all skin types, including sensitive skin
• Recommended: patch test before regular use if very reactive

How should I use this serum in my skincare routine?

Apply the serum to clean skin morning and night as the first step after cleansing, before any creams or sunscreen. A small amount is sufficient; gently massage into face and neck until absorbed. For daytime, follow with a broad-spectrum SPF product; for night, pair with a hydrating night cream to seal in moisture.

• Use morning and evening after cleansing
• Apply to face and neck, massage until absorbed
• Layer under moisturizer and sunscreen in the daytime
• Complement with Immersive Hydration Daily Lotion SPF 30 or Night Cream

What visible results can I expect and how quickly?

Users typically feel an immediate plumped sensation as surface hydration increases, and continued use helps the skin appear smoother. The formula targets the look of fine lines and aims to improve skin texture over time through sustained hydration. Results vary by individual skin condition and routine consistency.

• Instant plumped skin feel upon application
• Visibly smoother texture with ongoing use
• Helps reduce the appearance of fine lines and wrinkles
• Effectiveness depends on regular, repeated application

Who is this for: This serum is designed for anyone seeking lightweight, effective hydration—people with dry, combination, normal, or sensitive skin who want a non-greasy, fast-absorbing serum. It’s especially useful for those looking to add targeted hyaluronic acid benefits into a layered skincare routine, and for users who prefer formulas free of common fragrance allergens. Ideal as a first-step serum under moisturizer and sunscreen, it fits both morning and nighttime regimens for a wide range of skin goals.

Ingredients

Water, Alcohol Denat., Butylene Glycol, Glycerin, Sodium Hyaluronate, PEG-40 Hydrogenated Castor Oil, Sodium Ascorbyl Phosphate, Caprylyl Glycol, Citric Acid, Fragrance