PPG-2-Deceth-30

PPG-2-Deceth-30 is a nonionic surfactant/solubilizer used at low levels (often <1–5%) to disperse oils and fragrance, and surfactants as a class can disrupt the stratum corneum barrier and sting on compromised skin. Patch-test and clinical experience generally place ethoxylated/propoxylated surfactants as low-to-moderate irritants, with risk increasing in leave-on products and in eczema-prone or post-procedure patients. Given the need to account for reactive populations and cumulative routine exposure, I score it as mild rather than “gentle.” Safety Notes: PPG-2-Deceth-30 is a nonionic surfactant/solubilizer commonly used in leave-on serums, sprays, micellar-type waters, and makeup removers at low levels (~0.1–1%) to solubilize fragrance/oils and aid clarity. In higher-solubilizer load clear oil-in-water solutions (e.g., cleansing oils that self-emulsify, heavy fragrance solubilization systems, and some high-foaming rinse-off cleansers), consumer products can reach several percent, with upper-end commercial use observed around ~5–8% where it functions as a primary solubilizer/surfactant. There is no specific EU/FDA concentration limit for this ingredient beyond general safety requirements, so practical upper limits are driven by irritation potential, viscosity/clarity targets, and formula aesthetics.