Nécessaire The Body Serum — Fragrance-Free Hyaluronic Acid Body Serum, 150 ml, Fast-Absorbing + Niacinamide

Nécessaire The Body Serum is a fragrance-free hyaluronic acid body serum with niacinamide that delivers fast-absorbing, multi-level hydration for dry, sensitive, and eczema-prone skin.

This lightweight formula pairs 0.5% hyaluronic acid across five molecular weights with niacinamide to help support the skin’s moisture barrier without added fragrance, silicones, PEGs, parabens, or phthalates. Packaged in a 150 ml / 5.1 fl oz bottle, the serum is designed to sink in quickly, leaving no sticky or greasy residue and carrying the National Eczema Association Seal of Acceptance for use on sensitive, reactive skin types.

How does this serum hydrate differently than a regular body lotion?

The Body Serum uses hyaluronic acid at five different molecular sizes to target hydration at multiple skin layers. Smaller molecules penetrate more deeply while larger chains sit closer to the surface, producing a layered hydration effect that lotions with single-weight ingredients can’t match. Niacinamide complements hyaluronic acid to help maintain the skin’s barrier so moisture stays longer.

• 0.5% hyaluronic acid across five molecular weights for multi-level hydration
• Niacinamide supports barrier function and skin resilience
• Fast-absorbing, non-greasy texture suitable for layering

Is this serum suitable for sensitive or eczema-prone skin?

Yes — the formula was created without common irritants and carries the National Eczema Association Seal of Acceptance. It’s dermatologist-tested, hypoallergenic, and non-comedogenic, which reduces the risk of irritation for reactive skin. Still, patch testing on a small area is recommended if you have a history of severe sensitivities.

• Fragrance-free and free from parabens, phthalates, PEGs and silicones
• Dermatologist-tested and hypoallergenic
• Approved by the National Eczema Association for sensitive skin

How should I use The Body Serum in my daily routine?

Apply the serum to clean, slightly damp skin to maximize hyaluronic acid’s water-attracting benefits, ideally after showering. A little goes a long way — massage into arms, legs, chest, or any dry areas until fully absorbed, then layer a cream or oil if you need extra occlusion. It works well under sunscreen during daytime routines or under thicker moisturizers at night.

• Apply to damp skin for best absorption
• Use alone for light hydration or under a cream for extra sealing
• Suitable for morning and evening body care routines

What will the texture and finish feel like on skin?

The serum has a lightweight, fast-absorbing texture that avoids the heavy, oily feel of some body oils and creams. It leaves skin feeling hydrated and smooth without a sticky residue, making it convenient for busy mornings or layering under clothing. The non-greasy finish lets you get dressed soon after application.

• Lightweight and fast-absorbing texture
• Non-sticky and non-greasy finish
• Easy to layer under other products or clothing

Who is this for: The Body Serum is aimed at anyone seeking effective, fragrance-free body hydration — especially people with dry, sensitive, reactive, or eczema-prone skin who prefer a lightweight, fast-absorbing product. It’s suitable for those who want a clinical-feeling, everyday body moisturizer without common irritants, and for users who like to layer targeted actives within a chest-to-toe skincare routine.

Key specs: 150 ml / 5.1 fl oz; 0.5% hyaluronic acid across five molecular weights; contains niacinamide; fragrance-free; dermatologist-tested; National Eczema Association Seal of Acceptance.

Ingredients

Aqua/Water/Eau, Glycerin, Dicaprylyl Carbonate, Ammonium Acryloyldimethyltaurate/VP Copolymer, C13-15 Alkane, Sodium Hyaluronate, Niacinamide, Ceramide NP, Gluconolactone, Polyglyceryl-10 Stearate, Hydrogenated Lecithin, Sucrose Stearate, Aloe Barbadensis Leaf Juice, Calcium Gluconate, Sodium Benzoate, Citric Acid, Trisodium Ethylenediamine Disuccinate, Potassium Sorbate, Sodium Sulfite Ingredients are subject to change at the manufacturer’s discretion. For the most complete and up-to-date list of ingredients, refer to the product packaging.