Arbutus Unedo Fruit Extract

Arbutus unedo (strawberry tree) fruit extract is typically used at low concentrations as an antioxidant/soothing botanical, but it is a complex mixture (polyphenols, organic acids, trace volatile components) with variable composition that can trigger stinging or irritation in reactive and eczematous skin. While it is not a high-potency “active” like exfoliating acids, botanical extracts show a measurable rate of irritant and occasional allergic reactions in patch testing populations, especially on compromised barriers or when layered with other actives. Given patient-safety considerations and the unpredictability of botanical extracts across suppliers, I rate it as mild with occasional sensitivity possible. Safety Notes: In commercial skincare, Arbutus unedo (strawberry tree) fruit extract is most often used as a minor botanical/antioxidant component in multi-extract blends, where the finished-product use level commonly falls around 0.001–0.1% (especially in lotions, toners, and cleansers). Higher-strength consumer leave-on serums and brightening/antioxidant products that feature the extract more prominently are typically formulated around ~0.5–2%, with the upper end observed in niche “single-hero” botanical formulas and concentrated ampoules reaching ~3–5% depending on supplier potency/solids and sensory constraints. No specific EU/FDA maximum applies to this INCI beyond general cosmetic safety obligations, so the practical ceiling is usually set by extract solvent system, color/odor, and stability rather than regulation.