Anacyclus Pyrethrum Root Extract

Anacyclus pyrethrum (pellitory) root extract is used in small amounts in cosmetics for “stimulating/energizing” or firming claims, and it contains alkylamides and related constituents that can produce a tingling, warming, or stinging sensation. While robust large-scale irritancy datasets are limited, its known counterirritant/rubefacient profile and documented potential for contact reactions in sensitive individuals justify treating it as an active botanical rather than an inert soothing extract. For eczema-prone or compromised skin, I consider it a notable irritation risk in real-world routines where it may layer with other actives. Safety Notes: In commercial skincare, Anacyclus Pyrethrum Root Extract is most often a low-dose botanical active used for firming/anti-aging claims, frequently appearing at ~0.001–0.1% in multi-ingredient serums and creams (especially when supplied as a standardized extract or as part of a proprietary blend). Higher-strength consumer products marketed as “spilanthol/anacyclus lifting” or intensive firming treatments can reach ~1–3% of the extract (as supplied), mainly in leave-on serums/ampoules; rinse-off products typically sit at the lower end due to brief contact time. No specific global maximum is set for this extract, so practical upper limits are driven by supplier usage guidance, sensory impact, and irritation risk rather than regulation.