PEG/PPG-17/6 Copolymer

PEG/PPG-17/6 Copolymer is a synthetic surfactant/solubilizer and emollient-type polymer typically used at low percentages to improve texture and help disperse oils, and it is generally well tolerated in rinse-off and leave-on products. Available patch-test and clinical use history suggest low inherent irritancy, but in very reactive or eczema-prone skin it can occasionally contribute to stinging or barrier discomfort, especially when paired with other surfactants or actives in a routine. Given this small but real risk in compromised skin, it scores as very gentle rather than inert. Safety Notes: PEG/PPG-17/6 Copolymer is used as a solubilizer/surfactant and sensory modifier, so in leave-on lotions/serums and fragrance-solubilized products it is often present at very low levels (~0.05–0.5%) to aid clarity and wetting without impacting feel. In rinse-off cleansers, micellar waters, and high-solubilization systems (e.g., makeup removers/cleansing oils or clear gel cleansers with higher oil/fragrance loads), it can be used at several percent, with observed consumer OTC products reaching ~8–12% to achieve stability and clarity. No specific EU/FDA concentration cap applies for this polymer beyond general safety requirements, so the practical upper end is set by mildness/irritation, viscosity/phase behavior, and formula aesthetics.