Hippophae Rhamnoides Fruit Extract

Hippophae rhamnoides (sea buckthorn) fruit extract is primarily used as an antioxidant/emollient botanical at low percentages, but as a complex plant extract it contains multiple bioactive compounds (including carotenoids and fatty acid fractions) that can trigger stinging or dermatitis in reactive or eczema-prone skin. Clinical experience and patch-testing patterns with botanicals show occasional irritant or allergic responses despite “natural” positioning, especially when barrier function is compromised or when combined with other actives. Given the non-zero but generally infrequent reaction rate at typical leave-on use levels, I rate it as mild rather than gentle for high-sensitivity populations. Safety Notes: In mass-market leave-on moisturizers, toners, and cleansers, Hippophae Rhamnoides (sea buckthorn) fruit extract is commonly used as a minor botanical at ~0.01–0.5% (often as part of a broader plant-extract blend), with rinse-off products frequently sitting at the very low end. Higher-strength consumer serums and facial oils marketed around “sea buckthorn” can reach several percent, and concentrated extract-based systems (especially glycerin/propylene glycol extracts or standardized extracts) are observed up to ~10% in OTC leave-on formulations, while true 100% sea buckthorn oil is a different INCI and not counted under this extract.