Biolie's upcycled Vosgian fir seed co-product extract, Firever (INCI: Water (Aqua) (and) Propanediol (and) Abies Alba Seed Extract), is described as a natural solution to fight against pigmentary disorders and the signs of aging.
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According to the company, the active targets dark spots on skin. In vitro tests in reconstructed epidermis demonstrate a 14% reduction in skin pigmentation with 2% Firever. Furthermore, in vitro studies on dermal fibroblast monocultures show that at 0.5%, the ingredient inhibits β-galactoside, a marker of cell senescence, by 62%.
Firever is obtained from excess forest seeds via a patented enzymatic, solvent-free eco-process, in compliance with the Cosmos standard. This approach is said to preserved the material's naturallity according to ISO 16128. The ingredient is therefore Cosmos-approved, 80% PPAI and 100% natural origin according to ISO 16128.