Rosa Multiflora Fruit Extract

Rosa multiflora fruit extract is a botanical antioxidant/conditioning ingredient typically used at low concentrations, but as a complex plant extract it can contain naturally occurring acids, phenolics, and trace fragrant components that increase irritation and allergy risk compared with inert humectants. Clinical patch-test experience with botanical extracts shows a small but real rate of irritant and sensitization reactions in reactive/eczema-prone populations, especially with leave-on use and in already-inflamed skin. Given patient-safety considerations and cumulative routine exposure, this fits a mild irritancy profile rather than “gentle” for severely sensitive skin. Safety Notes: In mass-market leave-on skincare (toners, emulsions, sheet masks, and creams), Rosa multiflora fruit extract is commonly used as a minor botanical support ingredient at very low levels (often well under 0.1%), with the low end reflecting “labeling-level” inclusions typical of long INCI lists. The upper end is represented by consumer-available botanical-focused serums/ampoules and “single-extract” style products where the extract (as supplied) can be used at multi-percent levels, though practical limits are driven by supplier dilution (e.g., glycerin/butanediol/water carriers), color/odor, and stability rather than a specific global regulatory maximum; rinse-off products generally sit toward the lower half of this range.