Overview
Raspberry Leaf Extract is derived from the leaves of Rubus idaeus, a plant native to Europe and parts of Asia. Traditionally used in folk medicine, it is valued for its high concentration of tannins, flavonoids, and ellagic acid. Modern applications span nutraceuticals, cosmetics, and functional beverages due to its antioxidant and anti-inflammatory properties. The extract is typically produced via water or ethanol extraction, with variations in concentration and purity. Its efficacy in supporting women’s health, particularly during pregnancy, has been widely studied, though clinical evidence remains limited.
Physical and Chemical Properties
Raspberry Leaf Extract is characterized by its astringent taste and dark green to brown coloration. The primary active constituents include tannins (5–15%), flavonoids like quercetin, and phenolic acids. These compounds contribute to its antioxidant capacity, measured via ORAC (Oxygen Radical Absorbance Capacity) assays. The extract’s solubility depends on its form: powdered versions dissolve partially in water, while liquid concentrates are fully miscible. Stability is optimal in pH-neutral conditions, and degradation may occur under prolonged exposure to heat or light.
Main Applications
In the nutraceutical industry, Raspberry Leaf Extract is formulated into capsules or teas for menstrual and pregnancy support, though efficacy claims require further validation. Cosmetic manufacturers incorporate it into toners and serums for its astringent and soothing effects on skin. Functional beverages and herbal teas leverage its mild flavor and health associations. Industrial buyers should note niche demand in pet care products, where it is used for its purported anti-diarrheal properties.
Safety and Storage
Raspberry Leaf Extract is non-toxic at typical dosages but may cause mild gastrointestinal discomfort if overconsumed. Pregnant women should use it cautiously due to its potential uterine-stimulating effects, though traditional midwifery often recommends it in later trimesters. Storage requires protection from humidity and UV light to preserve bioactive compounds. Bulk powder should be sealed in moisture-proof containers, while liquid extracts benefit from amber glass bottles.
B2B Procurement Guide
Buyers should prioritize suppliers providing certificates of analysis (CoA) for tannin content, heavy metals, and microbial limits. Organic certification (e.g., USDA, EU) adds value for premium markets. Pricing varies by extraction method—supercritical CO2 extracts command higher costs than aqueous extracts. Sample testing for solvent residues (e.g., ethanol) is critical for compliance with food or cosmetic regulations. Minimum order quantities (MOQs) commonly start at 10 kg for powders, with lead times of 2–4 weeks for customized formulations.
Related Manufacturers
- 主营：枸杞粉、黑枸杞粉、青稞肽、食叶草粉、羊睾丸冻干粉、鹿鞭粉、沙棘浓缩汁、牛鞭粉、沙棘冻干粉、蔓越莓冻干粉、猪肾冻干粉、豌豆苗冻干粉、鹿血粉、浒苔粉、蒲公英粉、金银花粉、雷丸粉、鸡内金粉、葵花盘小分子肽
- 主营：桂圆粉、草莓粉、薄荷浸膏粉、覆盆子浓缩汁、布渣叶速溶粉、白芷提取物、锁阳提取物、百合花提取物、白扁豆胚芽粉、莲子心提取物、黄精浸膏、人参粉、肉苁蓉粉、阿胶粉、黑豆粉、玉竹提取物、青皮浸膏、枳壳提取液、沙棘粉、枸杞浸膏、金银花粉、红花提取物、当归提取物、桑葚提取物、小柑胎提取物
- 主营：蛋白肽、葱花粉、鳕鱼粉、覆盆子叶提取物、雪莲粉、刺梨粉、紫苏籽、南瓜粉、鹿心粉、鹿尾粉、菊花粉、葛根粉、浓缩汁、鹿尾肽、纤维素、槐花粉、沙棘果、香蕉粉、薏米粉、茶树花、干燥粉、葛根肽、洋葱粉、菜籽粉、鹿鞭粉、槐米粉
- 主营：硫酸烟酰苯胺、聚苯胺、硫酸阿托品、覆盆子酮、表面活性剂、光引发剂、离子液体、乙基纤维素、缓蚀剂、OB酸、N-油酰肌氨酸
- 主营：羽衣甘蓝粉、黑枸杞粉、沙棘粉、斑斓叶冻干粉、食叶草粉、葫芦巴叶粉、猪肾冻干粉、桂花粉、玫瑰茄冻干粉、鹿尾提取物、金蝉花肽、葵花盘碱、肉苁蓉提取物、淫羊藿提取物、黑枸杞冻干粉、沉香提取物、黄豆芽提取物、豌豆苗粉、油莎豆粉、桑葚粉
- 主营：椰浆粉、鸣蝉粉、紫米粉、食叶草粉、黑米粉、荔枝粉、香蕉粉、柚皮苷、花椒粉、樱桃粉、竹荪肽、红苕粉、扁豆粉、鹿血肽、大蒜素、裸藻粉、西米粉、魔芋粉、菱角粉、莲雾粉、腰果粉、牡蛎肽、糯米粉、芒果粉、沙棘冻干粉