Guangzhou Sanwich Biology Technology Company established in metropolis Guangzhou city We are Professional strength manufacturer expertise in producing hair building fibers for over 15 years more, integrating with market researching, designing, techniques, strong quality inspection, mainly products are, SGS, EN standards. SEVICH hair building fibers for hair loss treatment, for hair loss thickening instantly characters Our hair fiber raw ingredient are naturally ingredient plant iron-based and keratin, the fibers are not harmful for hair and scalp, no extra harmful composition for hair as u can see below pictures are the best result we have did while using our keratin hair buildingfibers SEVICH hair building fibers thickening fibers has strong static electricity with unique technique of production And technology, so the fibers are connecting human real hair allmost concealer your bald hair in jsut 10seconds, We have been exporting to Europe marketing more than 5000PCS weekly and got good reputation on our fibers, When you look at the fibers it looks naturaly like hair of human, hair well-protected