Maltooligosyl Glucoside

Maltooligosyl glucoside is a carbohydrate-derived humectant/skin-conditioning agent used at low-to-moderate percentages in moisturizers and cleansers, where it primarily supports hydration and mild film-forming. Available safety assessments and patch-test experience for sugar-based glucosides show a very low rate of irritation or sensitization, with reactions being uncommon and usually tied to compromised barriers or multi-ingredient formulas rather than the ingredient itself. Given its non-acidic, non-volatile profile and low intrinsic reactivity, it fits best as very gentle while still acknowledging rare intolerance in highly reactive eczema-prone skin. Safety Notes: Maltooligosyl glucoside is used in consumer skincare primarily as a humectant/skin-conditioning sugar derivative and as part of mild surfactant/hydration systems; in many commercial leave-on lotions/serums it appears at low supporting levels around 0.05–0.5%. Higher-use cases are seen in hydration-focused leave-on creams/masks and some gentle rinse-off cleansers where it can function as a primary moisturizing active/co-solute, reaching ~2–5% in OTC products (higher levels are constrained by tack/feel, water activity/osmolality, and preservative/stability considerations rather than regulation).