Performance and application: 1. In hair care product: ① It is suitable for multi-ion and negative ion surfactant, and matching with ALS,AES, SLES and alkyl lycine etc. ② While added in shampoo, it can remarkably improve the brushing, moistening, gentleness and gloss of the hair. ③ It can reduce or restrict static electricity, so suitable for cosmetics and active agent of marcel. ④ It owns wide range of PH value, so as to provide good opsonin product for hair. ⑤ The common adding proportion is between 2% to 10% in hair care product, according to the application and demand. 2. In skin care product: It can be added in bath lotion and bath-after cream, such as moistening cream, sun block cream, shaving cream, which will give skin a sense of silk, smooth but not greasy. It can be used in all range of PH value, with adding 1% to 6%.