Overview
Bearberry extract is obtained from the leaves of Arctostaphylos uva-ursi, a small shrub native to North America, Europe, and Asia. The extract's therapeutic value stems from its high concentration of arbutin, a glycosylated hydroquinone compound that inhibits melanin production. Historically used in traditional medicine for urinary tract infections, modern applications emphasize its dermatological benefits. Commercial production involves water or ethanol extraction followed by purification to standardize arbutin content. The extract is available in powder or liquid forms, with specifications tailored for cosmetic, pharmaceutical, or dietary supplement formulations. Quality varies significantly between suppliers, making third-party testing essential for B2B transactions.
Physical and Chemical Properties
The extract's efficacy primarily depends on arbutin (β-D-glucopyranoside of hydroquinone), which constitutes 5-30% of quality extracts. Arbutin decomposes at high temperatures (above 200°C) and is photostable within pH 3-7 ranges. Its water solubility facilitates formulation in aqueous systems, though some lipid-soluble components require emulsification. Secondary constituents include tannins (6-18%), flavonoids, and ursolic acid, contributing to antimicrobial and anti-inflammatory effects. The extract exhibits antioxidant capacity via free radical scavenging, measured by ORAC values typically ranging from 5,000-15,000 μmol TE/g. These properties make it multifunctional beyond skin-lightening applications.
Main Applications
In cosmetics, bearberry extract is prized for its depigmenting effects, often formulated in serums (1-3% arbutin) and creams (up to 7%) targeting hyperpigmentation. It outperforms synthetic brighteners like hydroquinone in safety profiles, though results manifest gradually over 8-12 weeks of consistent use. Pharmaceutical applications leverage its arbutin-derived antiseptic properties for urinary tract health supplements, typically standardized to 20% arbutin. Emerging uses include oral beauty supplements combining bearberry with vitamin C to enhance systemic antioxidant effects. The nutraceutical sector values its dual action as both active ingredient and natural preservative in functional beverages.
Safety and Storage
Topical applications require attention to formulation pH (optimal 5-6) to prevent arbutin degradation into hydroquinone, which may cause irritation at elevated concentrations. Cosmetic products should specify arbutin content below 7% to comply with international safety guidelines. Proper storage in amber glass or food-grade HDPE containers with oxygen scavengers extends shelf life to 24 months for powders. Liquid extracts demand refrigeration (2-8°C) to prevent microbial growth. Certificates of Analysis should confirm absence of heavy metals (lead <2 ppm) and pesticides, particularly for EU and North American markets with stringent botanical safety regulations.
B2B Procurement Guide
Reputable suppliers provide HPLC-validated arbutin content reports, preferably with mass spectrometry confirmation to detect adulteration with synthetic arbutin. Sustainable sourcing documentation (e.g., USDA Organic, FairWild certification) adds value for eco-conscious brands. Bulk pricing tiers typically start at 25kg quantities, with contract manufacturing options for custom standardization (e.g., 10% vs. 20% arbutin). Sample evaluation should include accelerated stability testing (40°C/75% RH for 3 months) to predict formulation performance. Payment terms often require 30-50% deposit for first-time orders due to the extract's premium valuation in botanical ingredient markets.
Related Manufacturers
- 主营：醉茄提取物、二氢杨梅素、一水肌酸、熊果素、硫辛酸、姜黄素、叶黄素、曲酸、大黄素、白藜芦醇、传明酸、脂质体NMN、木犀草素、葛根素、积雪草甙、L-谷胱甘肽、水溶醉茄提取物
- 主营：精氨酸、卡拉胶、抗性糊精、熊果苷、半胱氨酸、聚丙烯酸钠、海藻酸钠、赤藓糖醇、瓜尔胶、黄原胶、三氯蔗糖、羧甲基纤维素钠、大豆分离蛋白粉、琼脂粉、魔芋胶、结冷胶、大豆肽、鱼胶原蛋白肽
- 主营：甘氨酸、β-丙氨酸、维生素B1、熊果苷厂家、维生素B2、维生素B5、维生素B6、维生素B12、D-生物素、维生素E、维生素A、D-氨基葡萄糖盐酸盐、薄荷脑、肌酸、壳聚糖、酪蛋白、牛磺酸
- 主营：丁香油、水精油、中药油、熊果苷水溶粉、茴香油、香叶油、香精油、桉叶素、能量油、桉叶油、洋甘菊、茶树油、皮傲宁、乙基醚、基础油、抗菌剂、蜂草油、护肤品、己二醇、当归油、鼠尾草、增补剂、玉米油、丝柏油、香薰油、提取液
- 主营：油莎豆提取物、黄精多糖、山药粉、熊果叶提取物、胡萝卜提取物、人参提取物、百合提取物、绿豆提取物、蚕蛹蛋白粉、蒲公英多糖、粉葛提取物、五指毛桃粉、覆盆子提取物、三七提取物、绣球菌速溶粉、枸杞提取物、甘草提取物、青苹果果粉、牛骨胶原蛋白肽、葛根提取物、银杏叶提取物、胖大海浸膏粉、海参多肽、绞股蓝浓缩粉、酸枣仁提取物、牛骨髓粉
- 主营：食品添加剂、饲料添加剂、营养强化剂、增稠剂、乳化剂、防腐剂、色素、磷酸盐保水剂、黄原胶、甘氨酸、酪蛋白酸钠、大豆分离蛋白、海藻酸钠、乳清蛋白粉、L-半胱氨酸、L-苯丙氨酸、L-异亮氨酸、丝氨酸、谷氨酰胺
- 主营：水果果粉、植物浓缩粉、植物提取物、饲料原料、花青素系列、原花青素提取物、鸡内金提取物、黄精提取物、白芸豆提取物、大麦芽提取物、黄芪提取物、三七提取物、肉苁蓉提取物、金银花提取物、桑椹提取物、甜叶菊提取物、杜仲提取物、山药提取物、甘草提取物、肉桂提取物、葡萄皮提取物、麦芽提取物、枸杞提取物
- 主营：植物提取物、玉竹提取物/玉竹粉、决明子提取物/决明子、压缩糖果原料、固体饮料原料、蔬菜粉、金银花提取物/金银花、黄精提取物/黄精粉、沙棘果汁粉/沙棘粉、桑椹果粉/桑葚粉、人参提取物/人参粉、余甘子提取物/余甘子、芒果粉/芒果、白柳皮提取物/白柳皮、马齿苋提取物/马齿苋、肉桂提取物 肉桂、淡竹叶提取物 淡竹叶、果粉、果蔬粉、沙棘粉、菌菇粉、水溶浓缩粉、茯苓粉
- 主营：福美钠、漂白粉、次氯酸钠、熊果苷供应商、强氯精、漂粉精、DOP、DBP、蛋白胨
- 主营：辣木叶提取物、人参粉、桑葚粉、熊果叶提取物、陈皮提取物、藜麦肽、蓝莓粉、白芸豆提取物、甘草粉、枸杞提取物、沙棘粉、牡蛎肽、当归提取物、雪莲培养物、苹果粉、柑橘膳食纤维、淫羊藿提取物、肉苁蓉提取物、覆盆子粉、山药提取物、便秘果提取物、可水溶萃取粉、半边苏浓缩粉、半边苏提取物、甜石莲水提浸膏粉、淫羊藿双甙10%
- 主营：植物提取物、浸膏粉、果粉、饲料类提取物原料、食品饮料原料、固体饮料原料、植物原料、浓缩粉原料、水溶植物原料、蔬菜粉、化妆品类提取物、提取物加工、果蔬粉厂家、水溶粉、提取物定制、菌类提取物、植物浓缩粉、浓缩粉厂家、果蔬粉定制、植物加工品、浓缩粉、果汁粉、藤茶提取物/藤茶粉
- 主营：枸杞多糖、葛根提取物、猴头菇提取物、熊果叶提取物、黑枸杞提取物、芒果粉、苹果粉、桑椹粉、火龙果粉、板蓝根提取物、酸枣仁肽、燕麦肽、丁香提取物、金银花提取物、百合提取物、茯苓提取物、赤小豆提取物、桑叶提取物、荷叶提取物、砂仁提取物、蔓越莓提取物、白桦茸提取物、樱桃粉
- 主营：藤茶提取物、枳椇子提取物、二氢槲皮素、熊果叶提取物、槲皮素、地龙蛋白肽、马齿苋提取物、甘草提取物、黄芪粉、罗汉果粉、鱼腥草提取物、淡竹叶提取物、竹叶黄酮、葛根提取物、玉米低聚肽、酸枣仁提取物、荷叶提取物、人参提取物、蒲公英提取物、益智仁提取物、桑叶提取物、阿胶粉、麦芽提取物
- 主营：威兰胶、古尔胶、L-精氨酸、瓜尔胶、L-抗坏血酸、瓜尔豆胶、甘氨酸、半胱氨酸、维生素C/vc、核黄素(维生素B2)、胍基乙酸、牛磺酸、L-蛋氨酸、L-半胱氨酸、L-半胱氨酸盐酸盐、工业级VC、L-谷氨酰胺、L-苯丙氨酸、DL-蛋氨酸、L-丙氨酸、酪蛋白酸钠、酪蛋白/干酪素、海藻酸钠/海藻酸钠、硒代蛋氨酸、烟酸/烟酰胺
- 主营：海藻酸钠、黄原胶、酪蛋白酸钠、熊果苷、卡拉胶、胍基乙酸、瓜尔胶/瓜尔豆胶、核苷酸、L-精氨酸、亚硫酸氢钠、苹果酸、柠檬酸、乳酸链球菌素、明胶、木糖、低聚果糖、苏氨酸、色氨酸、牛磺酸、山梨酸钾、L-半胱氨酸盐酸盐、β-胡萝卜素
- 主营：黄芩素、大蒜素、南非醉茄提取物、喜来芝提取物、锯叶棕脂肪酸、芦荟甙、红车轴异黄酮、水溶白藜芦醇、弗斯可林、武靴藤酸、乳香酸、洋蓟酸、刺梨SOD、岩藻黄质、松果菊苷