La Roche-Posay Hyalu B5 Hyaluronic Acid Serum — 30ml, Vitamin B5 for Deep Hydration & Fine Lines

La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Serum is a concentrated hydrating serum that plumps skin, helps restore the moisture barrier, and targets fine lines while remaining suitable for sensitive skin.

This lightweight yet rich serum combines a multi-weight hyaluronic acid system with vitamin B5, glycerin and soothing thermal spring water to deliver deep hydration and visibly smoother texture. Dermatologist-tested and allergy-tested, it’s designed to boost skin’s elasticity and replenish lost moisture without irritation. Use a few drops morning and night alone or layered under a moisturizer for an immediate dewy feel and longer-term support for the skin barrier.

How quickly will I notice improved hydration and skin texture?

Many users feel an immediate increase in surface hydration and softness after the first application thanks to the serum’s rich texture and humectant ingredients. Instrumental testing cited with the formula indicates measurable barrier repair within an hour, while repeated use smooths and plumps over time.

• Apply 4–5 drops to clean face and neck, morning and evening.
• Multi-weight hyaluronic acids target different skin depths for layered hydration.
• Glycerin and vitamin B5 lock in moisture for lasting suppleness.

What makes this serum suitable for sensitive skin?

The formula is allergy-tested and dermatologist-tested, developed within La Roche-Posay’s strict safety standards. It avoids common irritants while including La Roche-Posay Thermal Spring Water to help calm the skin, making it appropriate for reactive or easily irritated complexions.

• Minimal, soothing ingredient profile reduces irritation risk.
• Contains thermal spring water known for calming properties.
• Clinically tested on sensitive skin types to confirm tolerability.

Can this serum help reduce the appearance of fine lines and improve firmness?

The concentrated hyaluronic acid complex hydrates and plumps the skin, which can reduce the look of fine lines by improving elasticity and volume. While individual results vary, consistent application supports smoother, firmer-looking skin and enhances the appearance of texture.

• High- and low-molecular-weight hyaluronic acids target surface and deeper layers.
• Vitamin B5 supports skin repair processes and resilience.
• Regular use helps the skin appear fuller and more even over weeks.

How do I incorporate Hyalu B5 into my daily routine?

Use the serum after cleansing and before heavier creams or oils; its lightweight yet rich feel layers well under moisturizers and sunscreens. For best results, apply consistently twice daily and combine with gentle cleansers and SPF in the morning to maintain hydration and protect barrier gains.

• Cleanse, then dispense 4–5 drops to face and neck.
• Pat gently into skin and follow with moisturizer or sunscreen.
• Safe to combine with most active ingredients; patch-test when mixing with strong actives.

Who is this for: La Roche-Posay Hyalu B5 Serum is aimed at anyone seeking targeted hydration and barrier support—particularly people with dry, dehydrated or aging skin, and those with sensitive or reactive skin who need a potent yet gentle humectant boost. It’s suitable for both men and women and fits easily into morning and evening skincare routines to improve moisture retention and surface smoothness.

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 • XANTHAN GUM • BUTYLENE GLYCOL • TOCOPHEROL • PHENOXYETHANOL • PARFUM / FRAGRANCE