Neutrogena Hydro Boost Ultra Hydrating Serum with Hyaluronic Acid, Fragrance-Free 1 fl oz — Lightweight 72-Hour Hydration

Neutrogena Hydro Boost Ultra Hydrating Serum is a lightweight, fragrance-free face serum with hyaluronic acid that delivers long-lasting hydration and helps reveal softer, glowing skin.

This ultralight serum from Neutrogena is formulated to replenish skin moisture without a heavy residue. Packaged in a recyclable glass bottle, the product pairs a clinically tested hyaluronic acid concentrate with Natural Moisturizing Factors—amino acids and electrolytes—to attract and hold water at the skin’s surface. The non-comedogenic, fragrance- and dye-free formula is created for dry, sensitive, and acne-prone skin types and is intended to fit easily into daily cleansing and moisturizing routines.

How quickly will I notice hydration after applying this serum?

The serum is designed to provide an immediate surge of moisture and visibly improve dry skin’s look and feel right away. Clinical testing cited with the formula shows up to 72 hours of hydration from a single application, with more sustained benefits over daily use.

• Instant lightweight hydration on application
• Clinically shown to provide 72-hour hydration
• Noticeably improved skin texture after repeated daily use

What key ingredients make this suitable for sensitive or acne-prone skin?

Hyaluronic acid is the active hydrator that holds water at the skin surface without adding oil, helping skin feel plumper and less parched. Supporting that are Natural Moisturizing Factors—amino acids and electrolytes—that help attract moisture back to the skin. The formula avoids common irritants, as it’s fragrance-free, dye-free, paraben-free, and phthalate-free, and is non-comedogenic so it won’t clog pores.

• Hyaluronic acid for water-binding hydration
• Natural Moisturizing Factors to support moisture balance
• Free of fragrances, dyes, parabens, and phthalates
• Non-comedogenic to reduce pore congestion risk

How should I incorporate this serum into my daily skincare routine?

Use the Hydro Boost Ultra Hydrating Serum after cleansing and toning but before moisturizer to lock in hydration. Apply evenly to face and neck once daily—morning or evening—or both if desired. Because the serum is lightweight, it layers well under creams, sunscreens, or makeup without feeling heavy.

• Apply after cleansing and before moisturizing
• Use daily on face and neck for best results
• Compatible with sunscreen and makeup layering

What results can I expect with continued use?

Regular use aims to revitalize skin texture and improve resilience over time. Users may notice skin feeling more replenished after two weeks and increasingly resilient after about four weeks of consistent application. The lightweight feel helps maintain comfort for sensitive or acne-prone skin types while supporting ongoing hydration needs.

• Feelings of skin revitalization after two weeks
• Improved skin resilience after four weeks
• Maintains hydration without a heavy or greasy finish

Who is this for: Neutrogena Hydro Boost Ultra Hydrating Serum is intended for people seeking a lightweight, dermatologist-recommended hydrator—especially those with dry, sensitive, or acne-prone skin who prefer fragrance-free, non-comedogenic products. It suits anyone who wants to boost moisture retention, smooth skin texture, and layer hydration under sunscreen or moisturizer as part of a daily skincare regimen.