Rose Hips Extract Rosa canina: Vitamin C and Polyphenol-Rich Natural Skincare Ingredient with Antioxidant, Whitening and Anti-Inflammatory Benefits

1. Description

Rose hips extract is a natural product obtained from the dried, ripe fruits of plants in the Rosa genus (such as dog rose (Rosa canina) and Chinese rosehip (Rosa roxburghii)). It appears as a fine powder ranging in color from pale yellow to brownish-yellow or light reddish-brown and possesses the faint, characteristic aroma of rosehips. This extract is rich in various natural bioactive components, primarily including flavonoids (accounting for 22.29%–45.13% of total metabolites), phenolic acids (17%–22.27%), polysaccharides, vitamin C (up to 400 mg%), carotenoids (44 mg%), and triterpenoids (such as ursolic acid and oleanolic acid). Storage conditions: Store in a cool, dry place (2–8°C), protected from light and moisture, in a sealed container to prevent moisture absorption and oxidative degradation.

2. Application

(1) Functional Foods and Nutritional Supplements: As a natural nutritional ingredient, it is added to products such as fruit juices, jams, teas, and capsules to supplement vitamin C, flavonoids, and polyphenols.

(2) Skincare and Cosmetic Ingredients: Used in the development of anti-aging and antioxidant skincare products, it can be added to products such as creams, serums, and face masks to provide antioxidant and skin-protective benefits.

(3) Development of Health Foods: Used in the development of functional products for the adjunctive management of osteoarthritis and inflammatory diseases; clinical studies indicate that rosehip powder can alleviate arthritis symptoms.

(4) Anti-inflammatory Research: Used in cellular and animal models to study the mechanisms of inflammation mediated by cyclooxygenase and lipoxygenase.

(5) Antioxidant Activity Research: As a natural antioxidant, it is used to investigate the mechanisms of free radical scavenging and the inhibition of lipid peroxidation.

3. Main Efficacy

(1) Antioxidant Effects: Rich in flavonoids, phenolic acids, and polyphenols, rosehip extract demonstrates significant ability to scavenge DPPH and ABTS free radicals. Studies have shown that rosehip extract effectively reduces malondialdehyde levels while increasing the activity of superoxide dismutase and glutathione peroxidase. Its antioxidant activity is positively correlated with total phenolic content.

(2) Anti-inflammatory Effects: By inhibiting the arachidonic acid metabolic pathway mediated by cyclooxygenase-1, cyclooxygenase-2, and 5-lipoxygenase, it reduces the production of inflammatory mediators such as prostaglandin E2 and leukotriene B4. Additionally, it lowers levels of pro-inflammatory cytokines such as tumor necrosis factor-α and interleukin-1β.

(3) Joint-protective effects: Clinical studies indicate that rosehip extract can alleviate joint pain and improve joint function in patients with osteoarthritis, with these effects linked to its anti-inflammatory and antioxidant mechanisms.

(4) Regulation of glucose and lipid metabolism: It exhibits hypoglycemic and hypolipidemic effects, improving insulin sensitivity and reducing total cholesterol and triglyceride levels. It demonstrates potential protective effects in diabetic models.

(5) Skin Protection and Anti-Photoaging: By regulating the mitogen-activated protein kinase/activator protein-1, nuclear factor κB, and nuclear factor E2-related factor 2/heme oxygenase-1 signaling pathways, it inhibits UVB-induced skin photoaging.

(6) Immune Enhancement: Rich in vitamin C and polysaccharides, it enhances immune function and is used for the prevention and adjunctive treatment of colds and infectious diseases.

(7) Antitumor Potential: The extract exhibits antiproliferative activity against cervical cancer HeLa cells and colorectal cancer HT-29 cells. The mechanism involves inducing apoptosis and inhibiting tumor cell growth.