Rubus Idaeus Fruit Extract

Rubus Idaeus (raspberry) fruit extract is typically used at low concentrations as an antioxidant/conditioning botanical, and it is generally well-tolerated in most users. However, as a complex plant extract containing naturally occurring acids, polyphenols, and trace fragrance-like constituents, it can trigger stinging or dermatitis in a subset of highly reactive or eczema-prone patients, especially on compromised skin. I score it as gentle but not “very gentle” because botanical extracts have a non-zero, clinically observed risk of irritation/sensitization compared with inert humectants. Safety Notes: In commercial skincare, Rubus Idaeus (Raspberry) Fruit Extract is frequently used as a minor antioxidant/marketing botanical in leave-on creams/serums and rinse-off cleansers at very low levels (~0.001–0.1%), consistent with typical supplier use-rates for fruit extracts and INCI placement near the end of lists. Higher-strength consumer-available botanical/“superfruit” serums, masks, and exfoliating blends sometimes push the extract itself into the ~1–5% range (especially when the extract is supplied in a solvent system like glycerin/butanediol and used as a featured complex), while >5% is uncommon due to cost, color/odor/tannin load, and stability/compatibility constraints rather than specific regulatory limits.