RoC Hyaluronic Acid Serum for Face, 1 fl oz — Fragrance-Free Hydrating & Plumping

RoC Hydration+ Hyaluronic Acid Serum is a concentrated, fragrance-free face serum formulated to visibly plump and hydrate skin using multiple hyaluronic acid forms and collagen-supporting proteins.

Designed by RoC with dermatology input, this 1 fl oz serum uses Patent‑Pending Dual‑Fill Technology to combine seven molecular forms of hyaluronic acid with pro‑collagen amino acids. The formula aims to replenish surface lines quickly while encouraging smoother, more elastic-looking skin over continued use. Its milky, fast-absorbing texture is made to layer under moisturizers, sunscreens, and makeup and is presented as suitable for a variety of skin types, including oily and sensitive skin.

How does this serum hydrate and reduce the look of fine lines?

The serum blends seven different sizes of hyaluronic acid to target multiple skin layers and temporarily restore surface volume where lines appear. Pro‑collagen amino acids in the formula are included to help support the skin’s natural collagen network with repeated application, promoting a firmer look over time.

• Seven molecular weights of hyaluronic acid for multi-level hydration.
• Patent‑Pending Dual‑Fill Technology to boost immediate skin plumping effects.
• Pro‑collagen amino acids to support collagen production pathways with regular use.
• Light, milky texture that absorbs quickly and layers well under other products.

Will this serum feel heavy or greasy on my skin?

The Hydration+ serum is described as lightweight and breathable, formulated to avoid a heavy or oily finish. To reduce any tackiness, apply a smaller number of drops, press into slightly damp skin, and allow about a minute for absorption before adding moisturizer or makeup.

• Milky, fast-absorbing texture designed for comfortable wear.
• Fragrance‑free and non‑comedogenic—less likely to clog pores.
• Best applied to slightly damp skin; start with fewer drops for oily or combination skin.
• Suitable for layering under SPF and cosmetic products.

How long do results last and what should I expect with continued use?

Immediate visible plumping is reported by many users after application, while smoother, re‑volumized appearance is expected to develop with ongoing use. Consumer testing reported extended hydration for multiple days, and regular application supports a cumulative improvement in skin texture and elasticity.

• Fast visible refill of fine lines for many users after application.
• Consumer testing indicated extended hydration lasting up to several days.
• Continued use supports smoother, more elastic-looking skin as collagen-supporting ingredients work over time.
• Non-irritating formula: hypoallergenic and suitable for sensitive skin types.

How should I incorporate this serum into my AM/PM routine?

Use the serum after cleansing and toning, while skin is still slightly damp, to maximize absorption. Press a few drops into the face and neck, wait about a minute for it to sink in, then follow with your moisturizer, eye cream, sunscreen (in the morning), and/or makeup.

• Apply to clean, slightly damp skin morning and/or night.
• Allow time to absorb before layering moisturizer or sunscreen.
• Use fewer drops for oily or combination skin to avoid excess finish.
• Works well paired with RoC retinol eye products and daily SPF.

Who this is for: RoC Hydration+ Hyaluronic Acid Serum is aimed at anyone seeking a concentrated hydrating boost and a visibly plumping effect—people noticing fine lines, surface dehydration, or loss of firmness who want a lightweight, fragrance‑free option that layers easily into daily AM/PM routines. It is positioned for users who prefer dermatologist‑developed formulas and are looking to support skin texture and hydration without heavy oils or added fragrance.

Ingredients

water/aqua, propanediol, ppg-24-glycereth-24, ethylhexyl palmitate, glycerin, sodium hyaluronate, hydrolyzed haematococcus pluvialis extract, haematococcus pluvialis extract, hibiscus sabdariffa fruit extract, hydroxyapatite, lecithin, erythritol, sodium acrylates copolymer, glucomannan, trihydroxystearin, 1,2-hexanediol, sodium polyacryloyldimethyl taurate, disodium edta, caprylhydroxamic acid