Alcloxa

Alcloxa (aluminum chlorohydroxy allantoinate) is primarily used as a skin protectant/soothing, anti-irritant complex in leave-on products, typically at low concentrations. Available clinical and patch-test experience suggests it is generally well tolerated and often included to reduce stinging or inflammation, but—as an aluminum-containing complex—rare irritant responses can occur in highly reactive or barrier-compromised patients. Given its overall favorable tolerability yet non-zero risk in sensitive populations, a gentle score is appropriate. Safety Notes: Alcloxa (allantoin-aluminum complex) is used in OTC skincare primarily as a soothing/astringent anti-irritant, with low-end inclusion around ~0.1% in gentle leave-on lotions/aftershaves where it functions as a minor calming adjunct. In consumer-available specialty post-shave, anti-itch, or blemish/toner-type leave-on products it is observed up to about ~2%, above which solubility/sensory constraints and diminishing benefit typically limit use; rinse-off products generally sit toward the lower end because of short contact time.