What it is
Sclerotium gum is a high-molecular-weight beta-glucan polysaccharide obtained by microbial fermentation. It builds smooth, shear-thinning gels and suspends particles efficiently at low use levels, which helps keep pigments and inorganic UV filters evenly distributed. It tolerates a wide pH and electrolyte range and lends a silky, non-tacky skin feel to lotions and creams.
Safety & warnings
Sclerotium gum is a large, inert polysaccharide that is generally considered mild and well tolerated, with low irritation and sensitization potential. It is not a recognized fragrance allergen.
Origin & sourcing
Natural-derived via biotechnology: produced by fermentation of the fungus Sclerotium rolfsii, yielding a polysaccharide gum.
Questions everyone asks
What is sclerotium gum made from?
It is a polysaccharide produced by fermenting the fungus Sclerotium rolfsii, then purifying the resulting gum.
Why use it in mineral sunscreens?
It thickens and stabilizes the formula and suspends inorganic UV-filter particles, helping keep them evenly dispersed for a uniform layer.