1. Shu Lei's oil control type is weakly alkaline. Generally, it is alkaline on the market, and acidic ones have special instructions. ?

second, weak acid shampoo

hair care is inseparable from correct shampoo. The correct shampoo must first choose the right shampoo, and the weak acid shampoo is suitable. Weak acid shampoo means that the PH value of shampoo is between 5. and 6.9.

shampoos with PH greater than 7 are called alkaline shampoos, and shampoos with pH less than 7 are called acidic shampoos. There is a natural protective layer called sebum film on the outermost surface of our skin, which protects us from most bacteria and the environment. Its PH value is 5.5, and this film is very fragile. Many alkaline products (pH >: 7.5) It can be easily destroyed, < P > However, the weakly acidic shampoo (5. ~ 6.) fits the acidic characteristics of human body, and can deeply repair the damaged hair, nourish the skin of the head, increase the luster of the hair, and make it soft, shiny and easy to comb; Long-term use can also repair hair roughness, furcation, dandruff and dryness caused by perm and dyeing, smooth hair fibers, and restore the original smooth and shiny hair, healthy and bright.

Third, alkaline shampoo

Alkaline shampoo is ph >: 7 shampoo, ordinary shampoo is alkaline. Because alkaline shampoo has a good decontamination effect, it does harm to the hair, making the hair scales open and rough and difficult to take care of. Alkaline cleaning can quickly remove oil, and oily hair will be clean after use.

But it will destroy the PH value of hair for a long time, so you must use conditioner and the like after using alkaline hair cleaning products, otherwise your hair will get worse and worse. Alkaline shampoo is generally suitable for deep cleaning before dyeing or straightening hair. Because it's not easy to dye your hair if it has oil.

Extended information

Brand introduction

Since its establishment in 1996, it has developed into one of the leading brands in the field of washing and chemical industry in China, which owns dozens of products in five categories, including shampoo, hair lotion, hair mask, bath lotion and soap, with sales covering all of China and annual turnover exceeding RMB 1 billion.

Shu Lei insists on shaping the health and beauty of women in China, advocates a "healthy and beautiful" lifestyle and beauty concept, and at the same time, takes innovative scientific research technology as the guarantee of excellent quality, and constantly develops new products to meet the increasingly subdivided personal care needs of consumers, so as to meet the needs of women for hair and skin care.

Shu Lei products are all manufactured in modern production bases that have passed the ISO 91: 2 quality management system certification. With excellent product quality, they have won the favor of consumers and the market, and have successively won many honorary titles such as "products recommended by China Consumer Protection Foundation" and "China famous brand products" ("China famous brand products"). In 24, Shu Lei brand was recognized as "China well-known trademark" by the State Administration for Industry and Commerce.

Reference: Baidu Encyclopedia-Shu Lei.