La Roche-Posay Hyalu B5 Hyaluronic Acid Serum — Vitamin B5, Glycerin, Lightweight Hydrating Serum for Sensitive Skin

La Roche-Posay Hyalu B5 is an intensive hyaluronic acid facial serum that deeply hydrates, helps restore the skin’s moisture barrier and visibly plumps fine lines without leaving an oily residue.

Powered by a 4–Hyaluronic Acid system plus vitamin B5, glycerin and La Roche-Posay Thermal Spring Water, this lightweight serum is formulated to deliver multi-layer hydration and support skin repair. Clinically tested on sensitive skin, it aims to smooth texture and restore bounce while working comfortably in both morning and evening routines.

How quickly will I notice improved hydration and plumping?

Many users report an immediate sensation of replenishment and smoother texture after the first application, with measurable improvements in suppleness over weeks of regular use. The formula combines hyaluronic acids of different molecular weights to hydrate both surface and deeper layers for faster visible effect.

• Multi-weight hyaluronic acids target several skin layers for immediate and sustained hydration.
• Glycerin attracts and holds moisture to improve skin softness.
• Instrumental testing shows visible barrier improvement within an hour for many users.

Can sensitive skin tolerate this serum?

Yes — the product is allergy- and dermatologist-tested and uses calming La Roche-Posay Thermal Spring Water alongside gentle humectants. Its non-greasy, oil-free texture is developed to minimize irritation while delivering intensive moisture and barrier support.

• Formulated for sensitive skin with proven dermatological testing.
• Fragrance-free and lightweight, reducing risk of irritation.
• Suitable for daily twice‑daily use under moisturizers or sunscreen.

How should I use Hyalu B5 in my routine for best results?

After cleansing, apply 4–5 drops to the face and neck, gently smoothing until absorbed, then follow with a moisturizer and sunscreen in the morning. Consistent twice-daily application supports barrier repair and cumulative reduction in the appearance of fine lines.

• Use on clean, slightly damp skin to maximize hyaluronic acid absorption.
• Layer under creams and SPF for added hydration and protection.
• Works with serums and treatments but avoid mixing with highly acidic exfoliants immediately afterwards.

What results can I expect for fine lines and skin texture?

The serum aims to visibly plump superficial fine lines and improve texture by restoring moisture and elasticity over time. While individual results vary, clinical and consumer evaluations report smoother, firmer-feeling skin with continued use.

• Targets dehydration-related fine lines by increasing skin water content.
• Vitamin B5 supports the skin’s natural repair processes for improved texture.
• Regular use promotes a more resilient, springy appearance.

Who is this for: Hyalu B5 Hyaluronic Acid Serum is designed for anyone seeking a potent, dermatologist-tested hydrator — especially those with sensitive, dehydrated, or aging skin that needs barrier support and visible plumping. It fits into both men’s and women’s routines and is ideal for users who want an oil-free, clinically developed serum to boost moisture and smooth texture without irritation.

Ingredients

Aqua / Water. Glycerin. Alcohol Denat. . Propylene Glycol . Panthenol . Pentylene Glycol . Dimethicone . Peg-6 Caprylic/Capric Glycerides . Ppg-6-Decyltetradeceth-30 . Glyceryl Isostearate . Madecassoside . Sodium Hyaluronate . Ammonium Polyacryloyldimethyl Taurate . Disodium Edta . Hydrolyzed Hyaluronic Acid . Caprylyl Glycol . Citric Acid . X An Th An Gum . Butyl Ene G Ly Col . Tocopherol . Phenoxyethanol . Parfum / Fragrance. Product packaging may vary.