
Les Cosmetiques
6 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 Les Cosmetiques Booster relax les cosmetiques nº8 booster plan
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.

Benton · drugstore
Actually matches niacinamide and Palmitoyl Tripeptide-1 like the source, plus similar humectants (glycerin, butylene glycol, panthenol, allantoin, aloe), though it adds snail mucin and extra peptides not in the source.
No price

rhode · drugstore
Shares niacinamide but the source's real hero is its multi-humectant/amino acid blend (sodium lactate, serine, urea, sorbitol) plus panthenol and a peptide, none of which this fluid replicates beyond a different single peptide.
No price

Caudalie · drugstore
Shares niacinamide and hyaluronic acid but pivots to Caudalie's grape-derived peptides instead of the source's palmitoyl tripeptide-1 and lacks the urea/lactic acid/amino acid humectant blend.
No price

Glow Recipe · drugstore
Only real overlap is niacinamide and glycerin; this is a watermelon/fruit-extract hydration serum with silicones and pigments, missing the peptide, amino acids, and multi-humectant system that define the source.
No price

Beauty of Joseon · mid-range
Shares niacinamide and some humectants (glycerin, hyaluronic acid, panthenol) but is built around propolis and adenosine rather than the source's peptide and amino acid/urea humectant complex.
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.