Biosaccharide Gum-1

Tolerability and safety

Irritation potential

Low

Allergen risk

Low

Pregnancy

Safe

Suitable for

Normal, Dry, Oily, Combination, Sensitive

About this ingredient

Biosaccharide Gum-1 is a natural polysaccharide produced by fermenting sorbitol with the bacterium Sphingomonas elodea (formerly Pseudomonas elodea). Composed of glucuronic acid, rhamnose, and fucose in a 2:2:1 ratio. Mechanism. On skin it forms a thin smooth film with a 'soft focus' sensory effect: the surface looks visually more even and wrinkles appear less prominent due to optical levelling. Binds water in the stratum corneum (humectant) and works as a mild prebiotic – supports the skin microbiome by selectively feeding commensal bacteria. Some fucose is used by keratinocytes to build cell-surface glycoproteins. Where applied. Serums, creams, pre- and postbiotic lines, makeup primers. Concentration 0.1–3%. In Spain part of Mesoestetic Hydra Vital, Sesderma Sensyses, Filorga Time-Filler. Often in lines claiming an 'instant smoothing' effect. Evidence base. Few direct high-tier clinical RCTs. Most data are studies by the manufacturer Solabia (Fucogel) showing improved hydration, smoothness, and lower irritation at 1–2% over 4–8 weeks. Indirect support via related polysaccharides and film-formers. Safety. Hypoallergenic, non-comedogenic, non-irritating. No direct CIR monograph, but the polysaccharide family at cosmetic concentrations is considered safe. No systemic absorption through intact skin – the molecule is too large. Pregnancy and lactation – safe topically. Used without restriction. Particularly suitable for. Dry and dehydrated skin, sensitive skin, post-procedure recovery, makeup primer. A good component of pre- and postbiotic lines. Not a standalone anti-age active.

Frequently asked questions