La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum
- Aqua/Water/Eau
- Primary solvent
- Glycerin
- Humectant for hydration
- Alcohol, Denat
- Volatile solvent, penetration aid
- Propylene Glycol
- Humectant and solvent
- Panthenol
- Humectant, soothing agent
- Pentylene Glycol
- Humectant, solvent
- Dimethicone
- Silicone-based skin protectant
- Peg-6 Caprylic/Capric Glycerides
- Emulsifying solubilizer
- Alpinia Galanga Leaf Extract
- Botanical antioxidant / soothing
- Calcium Chloride
- Electrolyte, stability aid
- Glyceryl Isostearate
- Emollient, texture enhancer
- Madecassoside
- Soothing centella-derived component
- Ppg-6-Decyltetradeceth-30
- Nonionic surfactant, solubilizer
- Sodium Acetylated Hyaluronate
- Modified hyaluronic acid humectant
- Sodium Hyaluronate
- Hyaluronic acid salt humectant
- Algin
- Viscosity controller, film former
- Adenosine
- Skin-soothing, signaling molecule
- Ammonium Polyacryloyldimethyl Taurate
- Gel-forming polymer thickener
- Propanediol
- Solvent and humectant
- Hydrolyzed Hyaluronic Acid
- Low molecular weight humectant
- Hydroxyacetophenone
- Antioxidant and preservative booster
- Caprylic, Capric, Triglyceride
- Emollient, skin-softening agent
- Caprylyl Glycol
- Humectant and preservative booster
- Citric Acid
- pH adjuster, mild chelator
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.
Is La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum worth it?
La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum scores 4.3 out of 5.0 for efficacy (Strong) and 3.6 out of 5.0 for safety (Caution) on DemythSkin's independent ingredient analysis. This is a hydration-focused serum with solid humectant chemistry but undermined by high denatured alcohol and unnecessary fragrance. The efficacy score is driven by a multi-weight hyaluronic acid system (sodium hyalurona
What are the key active ingredients in La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum?
La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum contains no gold-standard actives — its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum contain fragrance or known irritants?
DemythSkin flags these ingredients in La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum as potential irritants: Alcohol, Denat, Parfum, Fragrance. This product does contain fragrance.
How is La Roche-Posay Hyalu B5 Pure Hyaluronic Acid Face Serum scored?
DemythSkin grades every product on two independent axes: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are classified S through D against a database of over 3,000 compounds. No brand pays for a score.
Analysis last updated: 2026-09-09. DemythSkin is an independent ingredient analyzer. Scores are computed by a deterministic rubric from published clinical evidence — no brand pays for a score.