Astragalus Membranaceus Root Extract

Astragalus membranaceus root extract is a botanical antioxidant/soothing extract typically used at low concentrations (often ~0.1–2%), but like many plant extracts it contains multiple bioactive compounds that can trigger irritation or allergic contact dermatitis in a reactive subset. While generally tolerated in the broader population, clinical patch-test experience across botanicals supports a non-trivial risk for eczema-prone or highly sensitized patients, especially in leave-on formulas and multi-ingredient routines. Given the stakes for compromised barriers, I rate it as mild rather than gentle. Safety Notes: In mass-market and prestige leave-on products (serums, creams, toners), Astragalus Membranaceus Root Extract is often used as a minor botanical additive within multi-extract blends, commonly appearing at very low levels around 0.0005–0.1%. Dedicated “herbal/TCM” positioning and some consumer-available concentrate serums and ampoules use higher extract loads, with observed use levels up to ~5% (typically for glycerin/butylene glycol/water-based extracts rather than neat dry extract). Rinse-off products (cleansers) usually sit toward the lower end due to brief contact time, while leave-on formats more commonly reach the upper end when the extract is a key marketing active.