Overview
Rose hip extract is obtained from the pseudo-fruits of rose plants, primarily Rosa canina (dog rose), through solvent or supercritical CO2 extraction. Historically used in traditional medicine, modern applications leverage its high concentration of vitamin C (up to 50x more than oranges) and galactolipids, which contribute to its anti-inflammatory effects. The extract is standardized by its active components, such as ascorbic acid (vitamin C) content (typically 5-10%) or total polyphenol percentage (2-8%). Its efficacy in skincare and wellness products has driven demand in the B2B market, particularly for organic and sustainably sourced variants.
Physical and Chemical Properties
Rose hip extract exhibits a complex composition, including water-soluble vitamins (C, B group), fat-soluble carotenoids (lycopene, beta-carotene), and unsaturated fatty acids (omega-3 and -6). The powdered form is hygroscopic, requiring airtight packaging to prevent clumping, while oil-based extracts are viscous and prone to oxidation. Key bioactive compounds like trans-tiliroside (a flavonoid) and GOPO (a galactolipid) are markers of quality. The extract’s antioxidant capacity, measured via ORAC (Oxygen Radical Absorbance Capacity) values, ranges from 20,000-40,000 µmol TE/100g, outperforming many fruits. pH stability varies (3.5-6.0), making it compatible with most cosmetic formulations.
Main Applications
In cosmetics, rose hip extract is prized for its ability to stimulate collagen synthesis and reduce UV-induced skin damage, making it a staple in serums and anti-aging creams (e.g., 1-5% concentration). Its high vitamin C content also aids in brightening formulations. Nutraceutical applications include immune-boosting capsules (often combined with zinc) and joint health supplements, where its anti-inflammatory GOPO compounds alleviate arthritis symptoms. Pharmaceutical research explores its potential in wound healing due to fibroblast activation. Industrial uses extend to natural food coloring (E163a anthocyanins) and functional beverages.
Safety and Storage
Rose hip extract is non-toxic (LD50 > 5000 mg/kg in rodents) but may trigger allergic reactions in individuals sensitive to Rosaceae family plants. Cosmetic formulations should include patch testing recommendations. Storage requires protection from heat and humidity to prevent degradation of vitamin C. Oily extracts benefit from nitrogen flushing and amber glass containers to delay rancidity. Shelf life is typically 24 months unopened, reducing to 6-12 months post-opening. Certificates of Analysis (CoA) should confirm the absence of heavy metals (e.g., lead < 1 ppm) and pesticide residues.
B2B Procurement Guide
Buyers should prioritize suppliers providing third-party testing for active compound quantification (e.g., HPLC reports for vitamin C). CO2-extracted variants, though costlier (~20-30% premium), avoid solvent residues and retain heat-sensitive compounds. Minimum Order Quantities (MOQs) range from 1-25 kg for small batches. Bulk discounts apply at 100+ kg. Key sourcing regions include Chile (wild-harvested, high potency) and Eastern Europe (organic certified). For cosmetic use, opt for water-soluble powders (easier formulation); nutraceutical buyers may prefer oil-based extracts for softgel encapsulation.
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