The Ordinary Hyaluronic Acid Serum 2% + B5 with Ceramides, 1 fl oz — Multi-Depth Hydration & Barrier Support

This concentrated serum from The Ordinary combines a blend of low-, medium- and high-molecular-weight hyaluronic acids with HA crosspolymer and hydrolyzed HA to deliver moisture at several layers of the skin. Ceramides and pro‑vitamin B5 help reinforce the skin’s natural lipid barrier so moisture is retained longer, improving surface texture and the look of fine dry lines. The formula is water-based, absorbs quickly, and has a faint yellow tint from the naturally derived ceramides.

How does this serum hydrate multiple layers of skin?

The serum features five distinct hyaluronic acid forms designed to attract and hold water at different depths of the skin’s surface. Smaller molecules penetrate closer to deeper layers while larger molecules and crosspolymers sit nearer the surface to form a moisture reservoir. Together they increase hydration throughout the skin’s top layers for a fuller, smoother feel.

• Low-, medium- and high-molecular-weight HA target varying skin depths
• HA crosspolymer provides longer-lasting surface hydration
• Hydrolyzed HA offers enhanced skin penetration for immediate plumping

Will this product help strengthen my skin barrier?

Yes—ceramides in the formulation are lipid molecules naturally found in skin and they support barrier structure. Pro‑vitamin B5 aids in the formation of barrier components like ceramides and fatty acids, helping the skin retain moisture more effectively. Strengthening the barrier reduces transepidermal water loss and contributes to a smoother, healthier surface over time.

• Sphingolipid ceramides reinforce the skin’s lipid matrix
• Pro‑vitamin B5 supports natural barrier component formation
• Improved barrier function leads to longer hydration retention

How quickly will I see results and what should I expect?

Users typically notice immediate plumping and a softer skin feel right after application thanks to the humectant action of hyaluronic acid. Texture smoothing and a reduction in the appearance of fine dry lines are often visible with consistent daily use. Because results depend on skin type and routine, expect gradual improvement in elasticity and surface smoothness over several weeks.

• Instant: dewier, plumper skin after application
• Short term: smoother-feeling texture within days to weeks
• Ongoing: improved-looking elasticity and fewer dry lines with regular use

How should I layer this serum in my skincare routine?

This lightweight, water-based serum is best applied to clean, slightly damp skin to enhance absorption. Follow with a moisturizer or facial oil to seal in hydration and support barrier repair. It pairs well with most serums but avoid concurrent use with strong exfoliating treatments on the same area until you know your tolerance.

• Apply to cleansed, damp skin for best absorption
• Layer under moisturizer or sunscreen during the day
• Avoid combining with aggressive actives until skin acclimates

Who is this for: This serum is suitable for anyone seeking lightweight, multi-layer hydration—ideal for dry, combination, or dehydrated skin types that need barrier support and immediate plumping. It works for users aiming to reduce the appearance of fine dry lines and those who want a fast-absorbing product that layers easily with other treatments. Not recommended for people with known hypersensitivity to any listed ingredients.

Ingredients

Aqua (Water), Sodium Hyaluronate, Propanediol, Pentylene Glycol, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Phospholipids, Sphingolipids, Panthenol, Ahnfeltiopsis Concinna Extract, Glycerin, Polysorbate 20, Citric Acid, Sodium Citrate, p-Anisic Acid, Tocopherol, Trisodium Ethylenediamine Disuccinate, Caprylyl Glycol, Ethoxydiglycol, Ethylhexylglycerin, Hexylene Glycol, Phenoxyethanol, Chlorphenesin.