Aluminum Starch Octenylsuccinate

Modified starch used as an oil-absorbing powder in dry shampoo aerosol products. The CIR Expert Panel specifically flagged aluminum starch octenylsuccinate for particular attention given aluminum's documented pulmonary toxicity potential upon chronic inhalation. While cosmetic aerosol exposure is far below occupational thresholds, daily repeat use warrants a safety margin. Critical requirement: finished aerosol spray particle size must exceed 10 µm to prevent lower respiratory tract deposition. Formulators should prioritize particle size validation and consider substituting plain rice or tapioca starch to eliminate aluminum-related inhalation concerns.

Permitted cosmetic ingredient used in dry shampoo aerosols and powder formulations. CIR Expert Panel flagged aluminum content as a concern in aerosolized applications due to pulmonary toxicity potential from chronic aluminum inhalation. Particle size distribution characterization critical.