Sucrose Stearate

Sucrose stearate is a non-ionic sugar–fatty acid ester used mainly as an emulsifier and mild surfactant, typically at low percentages in leave-on and rinse-off products. Human patch-testing and clinical use data generally show low irritation potential, but as a surfactant/emulsifier it can occasionally contribute to stinging or barrier disruption in highly reactive or eczematous skin when combined with other irritants. Given its broad tolerability yet non-zero risk in compromised barriers, it fits best as very gentle rather than inert. Safety Notes: In commercial skincare, sucrose stearate is most often used as a co-emulsifier/texture modifier at very low levels (~0.05–0.3%) in lotions, serums, and cleansers where it supports stability and slip without materially impacting sensorials. Mid-range use (~0.5–3%) is common in creams and milky emulsions as part of the primary emulsifier system. The highest consumer-available levels observed (~5–8%) occur in anhydrous cleansing balms, solid cleansing bars, and high-structuring oil-to-milk cleanser formats where sucrose esters act as principal emulsifiers/structurants; this applies to both leave-on and rinse-off, though the top end is more typical for rinse-off and cleanser-convertible products.