A concentrated hyaluronic acid serum that plumps and repairs
La Roche-Posay Hyalu B5 Serum is a concentrated anti-wrinkle serum for all skin types, including sensitive skin, that plumps and repairs. It combines four types of hyaluronic acid with different molecular weights, to hydrate at the surface and plump fine lines, with vitamin B5 (panthenol) and madecassoside, which soothe and help repair the skin barrier. Adenosine and acetyl glucosamine complete the formula. Skin looks fuller, smoother and more comfortable, with wrinkles visibly reduced.
The texture
A light, clear gel-serum that spreads easily and absorbs fast without a sticky or greasy finish. It sits well under a moisturiser and makeup, and feels refreshing if kept in the fridge.
Who it suits
- Dehydrated skin with fine lines and a loss of plumpness
- Sensitive skin that needs a gentle anti-wrinkle step
- Skin feeling tight or fragile after retinoids or peels
- Anyone from their late twenties looking for a first serum
Worth knowing before you buy: the formula contains denatured alcohol and a light fragrance. Very reactive skin may prefer to patch test first. It hydrates and plumps but is not a strong resurfacing treatment, so pair it with a retinoid or vitamin C if dark spots or deep wrinkles are the main concern.
How long a bottle lasts
With 2 to 3 drops once or twice a day, the 30ml bottle lasts about two months.
Complete the routine

Hyalu B5 Eyes
The same duo for the eye contour.
Shop →
Hyalu B5 Cream
The repairing cream to seal in the serum.
Shop →Characteristics
- Texture: light gel-serum
- Skin type: all skin types, including sensitive
- Concerns: fine lines, wrinkles, loss of plumpness, dehydration
- When to apply: morning and/or evening
- Main benefits: plumps, hydrates, reduces the look of wrinkles, helps repair the skin barrier
How to use
Apply a few drops once or twice a day to clean face and neck, avoiding the eye area. Follow with your moisturiser, or mix a drop into your cream. It can be kept in the fridge for a fresh effect.
Active ingredients
- Hyaluronic acid (four molecular weights): hydrates and plumps fine lines
- Panthenol (vitamin B5): soothes and helps repair the skin barrier
- Madecassoside: a soothing, repairing compound from Centella asiatica
- Adenosine: helps smooth the look of wrinkles
- Acetyl glucosamine: supports the skin’s own hyaluronic acid
Ingredients
AQUA / WATER / EAU · GLYCERIN · ALCOHOL DENAT. · PROPYLENE GLYCOL · PANTHENOL · PENTYLENE GLYCOL · DIMETHICONE · PEG-6 CAPRYLIC/CAPRIC GLYCERIDES · ALPINIA GALANGA LEAF EXTRACT · CALCIUM CHLORIDE · GLYCERYL ISOSTEARATE · MADECASSOSIDE · PPG-6-DECYLTETRADECETH-30 · SODIUM ACETYLATED HYALURONATE · SODIUM HYALURONATE · ALGIN · ADENOSINE · AMMONIUM POLYACRYLOYLDIMETHYL TAURATE · PROPANEDIOL · HYDROLYZED HYALURONIC ACID · HYDROXYACETOPHENONE · CAPRYLIC/CAPRIC TRIGLYCERIDE · CAPRYLYL GLYCOL · CITRIC ACID · TRISODIUM ETHYLENEDIAMINE DISUCCINATE · ACETYL GLUCOSAMINE · XANTHAN GUM · BUTYLENE GLYCOL · 1,2-HEXANEDIOL · TOCOPHEROL · PHENOXYETHANOL · PARFUM / FRAGRANCE
Formulations are updated by the manufacturer from time to time. Always check the packaging you receive.
Manufacturer information
Brand: La Roche-Posay Laboratoire Dermatologique
Address: 86270 La Roche-Posay, France
EAN: 3337875920582
