Formula · 5.9

Brand · 8.0

La Roche-Posay · serum, hyaluronic acid + B5 · France

La Roche-Posay Hyalu B5 Serum

La Roche-Posay Hyalu B5 Serum
5.9

LabReadAI label score

How the score is calculated
  • Actives and evidence0.8Actives with strong evidence: 0 of 3
  • Active concentration1.0Actives sit above the 1 % line — by list order a working concentration is 100 % likely
  • Completeness for the purpose0.2For “wrinkles and firmness” — 20 %; without a retinoid — the best-proven active against wrinkles; without vitamin C, which guards against free radicals and is needed for collagen; glycolic acid; signal peptides; could be added without conflict: retinoid, vitamin c, glycolic acid; a formula with one main purpose
  • Tolerance0.8Debatable ingredient groups: denatured alcohol, fragrance and its allergens (skin test positive in 13 of 100 tested)
  • adults
  • pregnancyallowed per the leaflet
  • oily skin
  • children
  • babies
  • sensitive skinirritation possible
  • atopic skinfragrance is a common trigger
  • dry skinmay dry
Free from:
  • sulfates (SLS/SLES) · by the listthe list has no ingredient of the “ammonium laureth sulfate (ALES), ammonium lauryl sulfate (ALS), sodium coco-sulfate, sodium laureth sulfate (SLES), sodium lauryl sulfate (SLS), sodium myreth sulfate, TEA-lauryl sulfate” group — a cleansing surfactant from the sulfate family but with an ethoxylated chain: it cleanses more gently than lauryl sulfate. Still not for those looking for a sulfate-free product.
  • formaldehyde releasers · by the listthe list has no ingredient of the “formaldehyde releasers” group — preservatives that slowly release formaldehyde; allowed at low levels but a frequent cause of contact allergy
  • isothiazolinones (MIT/MCI) · by the listthe list has no ingredient of the “isothiazolinone preservatives (MIT/MCI)” group — preservatives; banned in EU leave-on products and limited in rinse-off (0.0015%) — a frequent cause of contact allergy
  • parabens · by the listthe list has no ingredient of the “parabens” group — preservatives; methyl- and ethylparaben are recognised as safe at permitted levels, propyl- and butyl- are limited by the EU to 0.14 %; a frequent buyer question rather than proven harm
  • mineral oils and petrolatum · by the listthe list has no ingredient of the “petrolatum and mineral oils” group — purified cosmetic-grade petroleum products: form a protective barrier film; safety is established, a preference question; 0–2 of 5 (depends on the raw-material source), cosmetic white oil per DiNardo (2005) is non-comedogenic
  • soap · by the listthe list has no ingredient of the “potassium soap (potassium cocoate), plant soap base (sodium palmate, sodium cocoate), tallow soap base (sodium tallowate)” group — liquid soap: fatty acids boiled with alkali. It cleanses well, but its acidity is around 9-10 against 5 for skin, which is why it often leaves tightness. The product is rinsed off, so the question is tolerance.
  • gelatin in the coating · by the listthe list has no ingredient of the “vegetarian coating” group — a plant-based tablet coating instead of gelatin; it keeps moisture out and makes swallowing easier
  • toning dyes · by the listthe list has no ingredient of the “violet toning dyes” group — direct dyes that settle on the hair surface and cancel the yellow cast of blonde; they wash out in 1–3 washes and leave a lilac tint if left too long; HC Blue 2 and Disperse Violet 1 are known contact allergens of hair dyes
  • tar · by the listthe list has no ingredient of the “wood (birch) tar” group — a traditional remedy for dandruff and itching with a sharp smell; it reduces flaking, but can irritate a sensitive scalp and dries the hair
What for: Against wrinkles the proven actives are retinoids (or bakuchiol), vitamin C with antioxidants and acids: they speed up skin renewal and stimulate collagen. Peptides and hydration are an add-on that smooths for a while.
When:
  • leave-on
  • morning
  • evening
morning and evening on damp skin, cream on top
When to expect an effect: hydration — immediately; lasting effect — 2–4 weeks; soothing — days; barrier — 2–4 weeks; redness — days

Ingredients — 20 components · 3 work

What works: 3 of 20 ingredients: hyaluronic acid, panthenol, madecassoside. Against wrinkles the proven actives are retinoids (or bakuchiol), vitamin C with antioxidants and acids: they speed up skin renewal and stimulate collagen. Peptides and hydration are an add-on that smooths for a while.

Strengths: active concentration

What lowers the score: actives and evidence: actives with strong evidence: 0 of 3; completeness for the purpose: for “wrinkles and firmness” — 20 %; tolerance: debatable ingredient groups: denatured alcohol, fragrance and its allergens

Questions: denatured alcohol — evaporates fast and degreases; frequent contact can dry the skin — a tolerance question, not a regulatory one; does not clog pores; fragrance and its allergens: fragrance — the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works

  • Hyaluronic acid + Panthenol (pro-vitamin B5) — reinforce each othertwo humectants with different action: moisture plus soothing
  • Aqua/Water base: coating, fillers · water — the solvent and base; listed first because there is more of it than anything else; in supplements — part of the capsule shell
  • Glycerin base: coating, fillers · a humectant: coats the tablet, holds moisture in creams and shampoos; does not clog pores
  • Alcohol Denat questions · evaporates fast and degreases; frequent contact can dry the skin — a tolerance question, not a regulatory one; does not clog pores
  • Propylene Glycol base: coating, fillers · humectants and solvents — hold water and help actives dissolve
  • Panthenol works · the active ingredient — what the product is for; form: panthenol
  • Pentylene Glycol base: coating, fillers · humectants and solvents — hold water and help actives dissolve
  • Dimethicone base: coating, fillers · form a smooth film and shine; inert and not absorbed — a preference question, not a safety one
  • PEG-6 Caprylic/Capric Glycerides base: coating, fillers · mono- and diglycerides of caprylic and capric acids (a coconut-oil fraction): a light emollient and co-emulsifier, a relative of caprylic/capric triglyceride
  • PPG-6-Decyltetradeceth-30 base: coating, fillers · keeps the water and oil parts from separating
  • Glyceryl Isostearate base: coating, fillers · fills the gaps between skin flakes, so the surface feels smooth
  • Madecassoside works · the active ingredient — what the product is for; form: madecassoside
  • Sodium Hyaluronate works · the active ingredient — what the product is for; form: sodium hyaluronate
  • Ammonium Polyacryloyldimethyl Taurate base: coating, fillers · hold the texture: gels, creams and foam do not separate
  • Disodium EDTA base: coating, fillers · bind hard-water metals so the formula stays stable and the foam works
  • Hydrolyzed Hyaluronic Acid works · the active ingredient — what the product is for; form: sodium hyaluronate
  • Caprylyl Glycol base: coating, fillers · a humectant that also holds bacteria back, which is why it often replaces part of the preservative.
  • Citric Acid base: coating, fillers · acidity regulator
  • Xanthan Gum base: coating, fillers · hold the texture: gels, creams and foam do not separate
  • Butylene Glycol base: coating, fillers · a humectant and solvent: it makes the texture lighter and helps actives spread. Better tolerated than propylene glycol.
  • Tocopherol base: coating, fillers · vitamin E at hundredths of a percent: keeps the oils of the formula (a cream or a capsule fill) from going rancid; at that share it protects the product, it is not vitamin E as an active
  • Phenoxyethanol base: coating, fillers · the most widespread cosmetic preservative: it keeps the product sterile. Permitted in the EU up to 1 %, recognised as safe at that level.
  • Parfum/Fragrance questions · the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works

La Roche-Posay Hyalu B5 Serum is a product whose active ingredient is hyaluronic acid + panthenol (pro-vitamin b5) + madecassoside (centella). The concentration is not declared, but the active sits above the 1 % line in the list — a working share is likely. The effect is moderately supported: hyaluronic acid, panthenol (pro-vitamin b5), madecassoside (centella). The formula has 20 ingredients, 3 of which do the work; the rest is the formula base. Worth noting: Alcohol Denat (evaporates fast and degreases; frequent contact can dry the skin — a tolerance question, not a regulatory one; does not clog pores); Parfum/Fragrance (the fragrance and its aromatic components; the EU requires 26 of them to be listed separately — matters to people allergic to fragrance, does not affect how the product works). Well-matched pairs in the formula: hyaluronic acid + panthenol (pro-vitamin b5). Against wrinkles the proven actives are retinoids (or bakuchiol), vitamin C with antioxidants and acids: they speed up skin renewal and stimulate collagen. Peptides and hydration are an add-on that smooths for a while. By the list, no sulfates (SLS/SLES), formaldehyde releasers, isothiazolinones (MIT/MCI), parabens, mineral oils and petrolatum, soap, gelatin in the coating, toning dyes, tar. Suitable for: adults, pregnancy, oily skin, children, babies. sensitive skin, atopic skin, dry skin — ask a doctor. fragrance allergy — not without a doctor. Use: morning and evening on damp skin, cream on top. When to expect an effect: hydration — immediately; lasting effect — 2–4 weeks. Label score — 5.9 out of 10 (actives with strong evidence: 0 of 3; for “wrinkles and firmness” — 20 %; without a retinoid — the best-proven active against wrinkles; without vitamin c, which guards against free radicals and is needed for collagen; glycolic acid; signal peptides; could be added without conflict: retinoid, vitamin c, glycolic acid; a formula with one main purpose; debatable ingredient groups: denatured alcohol, fragrance and its allergens (skin test positive in 13 of 100 tested)).

Who it does not suit

  • fragrance allergyrisk of reaction

When to stop: tightness in dry air — apply under a cream

Is this product right for your skin?

The score describes the formula, not your skin: the same product dries one person and saves another. Describe your skin type, reactions and goals, attach a photo of the ingredient list or the product — we will go through every ingredient and say whether it suits you, what to pair it with and what to avoid.

Cosmetic ingredient checkDecode my tests

Similar products

Same nutrient and the same purpose — closest by form and dose. Each has its own score by the same method, so you can see whether there is an option nearby that is more honest or simpler in composition.