Rosa Moschata Leaf Extract

Rosa moschata (musk rose) leaf extract is primarily a botanical soothing/antioxidant ingredient used at low concentrations, but plant extracts are a common source of irritant/allergic contact dermatitis in sensitized or eczema-prone patients due to complex mixtures of naturally occurring compounds. While not inherently caustic like acids or retinoids, its variability between batches and potential for delayed sensitization justify a mild score to reflect real-world reactivity risk in highly sensitive skin. Safety Notes: In commercial skincare, Rosa Moschata Leaf Extract is most often supplied as a diluted botanical extract in a solvent system (water/glycerin/propylene glycol or butylene glycol), so it commonly appears at very low use levels (around 0.001–0.05%) in leave-on creams/serums and even lower-end inclusions in rinse-off cleansers. Higher-end “botanical concentrate” toners, essences, masks, and serum bases marketed around rose/rosehip actives can push the finished-formula level into the ~1–5% range when the extract itself (not the whole plant water) is a featured component; above this, sensorial impact, color/odor, and stability/preservative load typically become limiting for mass-market OTC products.