
La-roche-posay
4 active ingredients identified. We flag active ingredients based on common cosmetic-use and formulation patterns. This is informational only and not medical advice.
No pricing data available yet for La-roche-posay HYALU B5 Sérum
Exact science-based dupes appear first. When a strict dupe is not available yet, we still show the closest active-match alternatives from the same product category.

Vichy · mid-range
It has sodium hyaluronate and a similar polyacrylate thickener, but it lacks madecassoside and panthenol at the levels found in the LRP serum, and adds adenosine/salicylic acid actives aimed at radiance rather than barrier repair.
No price

L'Oréal · drugstore
This is a lash growth serum, not a hydrating face serum; it shares madecassoside and some hyaluronic acid but is formulated for lash conditioning with amino acids, not skin hydration.
No price

Cosmia Bio · drugstore
It contains sodium hyaluronate and tocopherol like the source, but relies on oils, gluconolactone and plant extracts instead of panthenol and madecassoside, making the soothing/repair profile quite different.
No price

Shiseido · prestige
This luxury firming serum leans on silicones and peptide-like actives (piperidinepropionic acid) rather than the LRP's hyaluronic acid/madecassoside/panthenol combo, sharing only trace hyaluronic acid and tocopherol derivative.
No price

Mustela · drugstore
This is a stretch-mark body serum built on oils, butters and waxes with no hyaluronic acid or madecassoside, sharing only minor stabilizers like citric acid.
No price
We rank results with INCI-level analysis first, then fall back to the strongest active matches and closest alternatives so every product page still shows comparable options. Fallbacks stay within the same category as the source product, so cleansing balms only surface cleanser dupes instead of adjacent product types. Active Match % measures shared science-backed actives. Formula Similarity % measures total ingredient overlap when full INCI lists are available.