Rosa Canina Fruit Oil
Also known as Rosehip oil, Rosehip seed oil, Rose hip seed oil, Dog rose hip oil
“CIR Expert Panel says: safe as used in cosmetics.”
Rosa Canina Fruit Oil is the cold-pressed oil obtained from the seeds inside the hips (fruit) of the dog rose (Rosa canina L., Rosaceae); the INCI name 'Fruit Oil' is operationally equivalent to 'Rosa Canina Seed Oil' (incidecoder, specialchem). Lipid profile is high in polyunsaturated fatty acids: linoleic acid (~48-54%), alpha-linolenic acid (~16-18%), and oleic acid (~14-19%), with smaller amounts of palmitic, stearic, and arachidic acids (PMID 12495585, Ozcan 2002). The CIR Expert Panel rated the oil S (Safe) without conditions in the 2017 plant-oil mega-report (IJT 36(Suppl. 3):51-129, 2017), distinguishing it from the broader Rosa canina-derived ingredients group (bud, flower, fruit extract, seed extract, leaf) which the CIR rated SQ (Safe Qualified) in 2022. A randomized open-label controlled trial of 68 children with T1D using finger-prick monitoring (PMID 31235400, 2020) found the oil safe (no adverse effects) but not effective for preventing finger-prick skin lesions. A 2024 review (PMID 37605366, J Cosmet Dermatol) concluded that current evidence is insufficient to recommend rosehip oil for wound treatment, though it may improve postsurgical scars. A 2024 mechanism review (PMID 38666029, Frontiers in Pharmacology) confirms trans-retinoic acid presence in the oil and supports anti-aging and scar-reduction claims with caveats about study quality.
CIR Expert Panel rated S (Safe) in cosmetic use without qualifying conditions, citing the 2017 plant-oil safety assessment:51-129, 2017)
High in essential polyunsaturated fatty acids: linoleic acid (~48-54%) and alpha-linolenic acid (~16-18%) support skin barrier function and provide essential fatty acids the skin cannot synthesize
Well-tolerated topically: the 2020 controlled trial in children with T1D recorded no adverse effects with twice-daily application over the study period
Contains naturally-occurring carotenoids (provitamin A) and tocopherols (vitamin E) that contribute antioxidant activity
Limited clinical evidence supports benefit for postsurgical scar appearance reduction and modest improvement in wrinkles, UV spots, and erythema in pilot studies, though larger RCTs are needed to establish efficacy with confidence
Long history of traditional and cosmetic topical use; no signal of systemic toxicity, hormone disruption, or significant sensitization at cosmetic use levels
Marketing claim of 'natural retinoid' or 'natural tretinoin alternative' is technically true but pharmacologically misleading: cold-pressed rosehip oil contains all-trans-retinoic acid at approximately 0.357 mg/L (~0.000039%, or ~0.4 ppm); pharmaceutical tretinoin formulations are dosed at 0.025-0.1% (250-1,000 ppm), roughly 600-2,500-fold higher concentration. The retinoid content cannot reasonably reproduce topical tretinoin's pharmacological effects on collagen synthesis or epidermal turnover.
Clinical evidence base is thin: only two small human RCTs identified by the 2024 wound-healing review; efficacy claims rest largely on in vitro and animal data. Anti-aging and scar-fading marketing claims outpace the clinical evidence base.
INCI ambiguity: 'Rosa Canina Fruit Oil' (CAS 84696-47-9) is operationally the same product as 'Rosa Canina Seed Oil' — both refer to oil pressed from the seeds inside the rosehip. Formulators and consumers should treat the two INCI strings as interchangeable. CIR distinguishes them in the QRT but the underlying oil is the same.
Rosa canina oil is a polyunsaturated-rich plant oil and is therefore prone to oxidation and rancidity if stored without antioxidants or in oxygen-permeable packaging; oxidation byproducts can be irritating. Refined or antioxidant-stabilized formulations are preferred for cosmetic stability.
Other Rosa canina ingredients (Bud Extract, Flower, Flower Extract, Flower Oil, Fruit, Fruit Extract, Fruit Juice, Leaf Extract, Seed, Seed Extract, Seed Powder) carry the CIR SQ qualifier requiring formulation to be non-irritating and non-sensitizing:44S-60S, 2022) — this packet does NOT cover those ingredients.
CIR Quick Reference Table (September 2022) — ROSA CANINA FRUIT OIL row: Finding=S, Citation=IJT 36(Suppl. 3):51-129, 2017
“Rosa Canina Fruit Oil S IJT 36(Suppl. 3):51‐129, 2017”— QuickReferenceTable_AllConclusionTypes.pdf, p. 491