Albatrellus Confluens Extract

Albatrellus confluens (mushroom) extract is typically used at low concentrations as a soothing/antioxidant or tone-evening botanical, and it is not a pH-dependent active like acids or retinoids. Clinical irritation and patch-test signals for this specific extract are limited, but as a complex botanical mixture it carries a small, non-zero risk of irritation or sensitization in highly reactive or eczematous skin. Given its usual low use level and generally calming intent, I rate it as gentle but not inert. Safety Notes: Albatrellus confluens extract (a specialty mushroom extract used for soothing/anti-redness and barrier-support positioning) is most often encountered in leave-on serums/creams at very low active-use levels, with mass-market formulas commonly dosing it around the low ppm-to-0.01% range as part of multi-extract blends. Higher-strength consumer products (typically calming serums/ampoules and targeted redness products) can push into the 0.5–2% range when the ingredient is a primary claim driver or when using supplier-recommended active solutions standardized for bioactives. Rinse-off products generally sit at the low end due to brief contact time, while the upper end is primarily observed in leave-on formulations; no specific global regulatory maximum is set beyond general cosmetic safety and labeling compliance.