Overview
Provitamin B compounds are inactive forms of B vitamins that the body metabolizes into their active counterparts. They play a critical role in cellular metabolism, energy production, and neurological functions. Common examples include panthenol (provitamin B5), which converts to pantothenic acid, and other derivatives used across industries. These precursors are favored in formulations for their stability and gradual release properties. They are widely utilized in pharmaceuticals to treat deficiencies, in cosmetics for skin and hair benefits, and in fortified foods to enhance nutritional value.
Physical and Chemical Properties
Provitamin B compounds vary in structure but share water solubility and moderate stability under controlled conditions. For instance, panthenol appears as a viscous liquid or crystalline powder, soluble in water and alcohol, with a melting point around 66–69°C. Their chemical stability depends on pH and temperature. Most are sensitive to prolonged exposure to heat or light, necessitating opaque packaging and cool storage. Analytical methods like HPLC are commonly used to assess purity and concentration in commercial samples.
Main Applications
In pharmaceuticals, provitamin B derivatives address deficiencies and support metabolic therapies. Panthenol, for example, is used in wound healing ointments and injectable solutions due to its moisturizing and anti-inflammatory effects. The cosmetics industry leverages these compounds in shampoos, creams, and serums for their hydrating and barrier-repair properties. Food manufacturers incorporate them into fortified cereals, beverages, and infant formula to meet dietary recommendations.
Safety and Storage
Provitamin B compounds are generally non-toxic at recommended doses. However, excessive intake may lead to imbalances or side effects, such as gastrointestinal distress. Regulatory bodies like the FDA and EFSA provide guidelines for safe usage levels in consumables and topical products. Storage requires protection from moisture and UV light. Suppliers typically recommend airtight containers with desiccants and temperature control below 25°C to prolong shelf life, which averages 2–3 years for most forms.
B2B Procurement Guide
When sourcing provitamin B, prioritize suppliers with ISO or GMP certifications to ensure quality. Key specifications include purity (≥98% for most applications), residual solvent levels, and microbiological limits. Bulk pricing varies by volume and form (powder vs. liquid). Request certificates of analysis (CoA) and stability data. For international shipments, confirm compliance with regional regulations like REACH (EU) or DSHEA (US). Sample testing is advisable to verify compatibility with your formulation.
Related Manufacturers
- 主营：丙酸钙、肉桂酸、edta二钠、维生素C/抗坏血酸、维生素C、vc、纳他霉素、抗氧剂264、抗坏血酸、双乙酸钠、聚赖氨酸、胍基乙酸、抗氧剂t501、抗氧剂1010、抗氧剂dltp、半胱氨酸盐酸盐、半胱氨酸、果胶、干酪素、苯丙氨酸、乳酸链球菌素、肉桂酸钾、色氨酸、牛磺酸、低聚木糖、酪蛋白酸钠
- 主营：药品瓶、保健品瓶、塑料瓶、喷雾瓶、咬嘴、一次性奶瓶、食品包装塑料瓶、PE瓶、口服液瓶、白色塑料瓶、广口塑料瓶、胶囊塑料瓶、塑料分装瓶、聚乙烯瓶、聚酯瓶、聚丙烯瓶、量杯、膏盒、儿童安全盖、食品级密封圆瓶、样品瓶、包装瓶、PET刻度小口塑料瓶
- 主营：液态状、增湿剂、硝酸铝、防霉剂、84漂白液、净化处理、玉米淀粉、轻质纯碱、硬化促进剂、硝酸铁工业、食品添加剂、生长调节剂、净水絮凝剂、杀菌灭藻剂、清洁剂杀虫剂、合成材料助剂、电镀陶瓷纺织
- 主营：回收磷酸、回收废盐、回收工业盐、收购维生素E、处置副产工业盐、回收混合盐
- 主营：回收油漆、回收树脂、回收橡胶助剂、回收油漆厂原料、回收橡胶、回收香精、回收热熔胶
- 主营：大豆分离蛋白、瓜尔胶、果胶、黄原胶、海藻酸钠、结冷胶、卡拉胶、抗性糊精、可得然胶、明胶、魔芋粉、琼脂、羧甲基纤维素钠、阿斯巴甜、安赛蜜、赤藓糖醇、低聚半乳糖、低聚果糖、低聚木糖、低聚异麦芽糖、核糖、木糖、阿拉伯糖、菊粉、麦芽糖醇
- 主营：抗氧剂BHT、苯磺酸、苯酚磺酸、环烷酸铈、N235 萃取剂、C272萃取剂、均苯四甲酸二酐、对苯乙烯磺酸钠、氟化铝、椰油酰胺丙基甜菜碱、甘油三苯甲酸酯
- 主营：木糖醇、麦芽糖醇、赤藓糖醇、黄原胶、低聚果糖、低聚木糖、水苏糖、乳糖、菊粉、阿拉伯糖、核糖、甘露糖醇、纽甜、三氯蔗糖、瓜尔胶、海藻酸钠、酪蛋白酸钠、琼脂粉、魔芋粉、聚丙烯酸钠、魔芋胶、结冷胶、卡拉胶、羧甲基纤维素钠、植酸钠
- 主营：固体酸催化剂、硅油、特种硅油、重组胶原蛋白、聚硅氮烷、硼酸铝晶须、碳化硅晶须、t-BAMBP萃取剂、全氟三丁胺
- 主营：乳酸链球菌素、甜菜碱、富铬酵母、黄原胶、维生素B1、富硒酵母、富锌酵母、肉桂酸钾、茶多酚、植酸钠、富马酸、单宁酸、甘露寡糖、低聚半乳糖、魔芋粉、结冷胶、卡拉胶、海藻酸钠、果胶、酪蛋白酸钠、低聚果糖、低聚木糖、水苏糖、三氯蔗糖、肉桂酸
- 主营：烟酰胺、泛酸钙、生物素、黄原胶、瓜尔胶、L-半胱氨酸盐酸盐、海藻酸钠、海藻糖、谷氨酸、卡拉胶、乳清粉、赤藓糖醇、结晶果糖、木糖醇、甜菜碱、螺旋藻、乳清蛋白粉、氯化胆碱、酪蛋白、肌酸、色氨酸、赖氨酸、鱼油粉、刺槐豆胶、阿拉伯胶
- 主营：中间体、抗氧剂、甘露糖醇、维生素原B5、微量元素、光敏塑料、绿色农药、磷酸二氢铝、表面活性剂、组织改进剂、间苯二甲胺、工业级甲酸钙、工业级二甘醇、聚醋酸乙烯酯、紫外线吸收剂、n-辛基吡咯烷酮、活性剂耐火材料、纺织助剂增塑剂
- 主营：防腐剂、营养强化剂、食品增稠剂、维生素、黄原胶增稠剂、鱼胶原蛋白肽、防腐保鲜剂、酶制剂、酸度调节剂、稳定剂、可得然胶、甘露糖醇、抗坏血酸钠、高酯果胶粉、鼠李糖苷酶、面包发酵剂、蔗糖八乙酸酯、食品级山梨酸、脱乙酰甲壳素、羧甲基纤维素钠
- 主营：清蛋白、贝壳粉、甘草粉、维生素原B5、山药粉、生物素、花青素、罗勒籽、提取液、海参粉、羊桃粉、苦瓜茶、肉桃粉、生姜片、干姜片、干冻粉、粉200目、腊肠果、藏雪莲、中药材、生梅粉、物纯粉、提取粉、猴头菇、蓝莓粉、鹅不食
- 主营：无氟防水剂、碳六防水剂、防水剂、水性防水剂、油性防水剂、C6防水剂、C8防水剂、C0防水剂、碳八防水剂、防水助剂、防水整理剂、开油水、稀释剂、清洗剂、天那水、洗网水、防虹吸、防泼水、动态防水、除油剂、除锈剂、飞织防水、网布防水、鞋面防水
- 主营：维生素原B5、树脂