Neutrogena Hydro Boost Niacinamide Serum — 1 oz Fragrance-Free, 10% Niacinamide + Hyaluronic Acid Hydration

Neutrogena Hydro Boost+ Niacinamide Serum is a lightweight, fragrance-free face serum that combines 10% niacinamide with hyaluronic acid to hydrate skin and help improve the appearance of uneven tone and dullness.

This 1-ounce serum from dermatologist-recommended Neutrogena layers easily into morning and evening routines. The formula pairs a concentrated form of vitamin B3 (niacinamide) with hydrating hyaluronic acid to support smoother-looking texture while keeping skin comfortable and moisturized. It’s free of fragrance, parabens, phthalates and dyes, and not tested on animals.

How does this serum hydrate without feeling heavy?

The Hydro Boost+ serum uses hyaluronic acid — a lightweight humectant — to attract and hold moisture at the skin’s surface, delivering hydration without greasiness. The gel-like consistency absorbs quickly, making it suitable under moisturizers and makeup.

• Hyaluronic acid draws water to skin for immediate plumping.
• Light gel texture absorbs quickly without residue.
• Works well layered under creams and sunscreens.

Will the niacinamide help uneven tone and pores?

This serum contains 10% niacinamide, a form of vitamin B3 commonly used to help refine the look of skin tone and support clearer-looking pores. Regular use can make complexions appear more even and reduce the look of dullness over time when combined with a consistent skincare routine.

• 10% niacinamide helps improve the appearance of uneven tone.
• Formulated to address dullness and the look of enlarged pores.
• Suitable for a wide range of skin tones and types.

How do I add this serum to my daily routine?

Apply a pearl-sized drop to clean, dry skin twice daily—morning and night—focusing on face and neck while avoiding the eye area. Allow the serum to absorb before layering a moisturizer and SPF (in the morning) to lock in hydration and protect results.

• Use on cleansed face and neck; avoid contact with eyes.
• Press gently until fully absorbed, then follow with moisturizer.
• Morning routine should include a broad-spectrum sunscreen afterward.

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

The fragrance-free, dye-free formula minimizes common irritants, making it a considerate option for many sensitive skin types. Because niacinamide is generally well tolerated and the texture is non-comedogenic, it can fit into routines for oily or acne-prone skin, though patch testing is recommended for very reactive skin.

• Fragrance-, paraben-, phthalate-, and dye-free to reduce irritation risk.
• Non-greasy, fast-absorbing texture suitable for oily skin types.
• Patch test new skincare if you have reactive skin.

Who is this for: Neutrogena Hydro Boost+ Niacinamide Serum is aimed at anyone seeking a daily lightweight hydrator that also targets uneven tone and dullness — ideal for people with normal, combination, oily, or sensitive skin who want a fragrance-free, dermatologist-recommended product that layers easily into AM and PM routines.

• Size: 1 fluid ounce bottle.
• Key actives: 10% niacinamide and hyaluronic acid.
• Free from: fragrance, parabens, phthalates, and dyes; not tested on animals.

Ingredients

Water, Niacinamide, Glycerin, Acetyl Glucosamine, Pentylene Glycol, Dimethicone, Phenoxyethanol, Carbomer, Disodium EDTA, Sodium Hyaluronate, Sodium Hydroxide, Ethylhexylglycerin, Dimethicone/Vinyl Dimethicone Crosspolymer, Amodimethicone