When using cosmetics, keep your Nail polish bottle Suppliers clean, or use a clean pick stick, cotton stick, or dig stick to prevent bacteria from entering.
Do cosmetics have to be sterile?
In fact, cosmetics allow a certain number of bacteria, and we are not living in a sterile state.
Testing the total number of bacteria in cosmetics is to understand and verify the hygienic quality of the cosmetic production process.
If the hygiene conditions of raw materials, production equipment, production processes and production personnel are poor during the production of cosmetics, the detection standard will immediately reflect that the higher the total number of bacteria, the higher the degree of contamination of the cosmetics.
Therefore, the cosmetics and skin care products we use allow a certain number of microorganisms to exist, but there are strict standards for their types and limits.
The national standard of the cosmetic microbiological test method has indicators for the total number of bacteria, fecal coliforms, Pseudomonas aeruginosa, and Staphylococcus aureus.
1. Shake hard and watch the bubbles after shaking.
a. There are few bubbles, indicating that there are few nutrients.
b. Bubbles are large but large, indicating that they contain salicylic acid. Salicylic acid has a good cleansing effect, but it is irritating and easy to be allergic.
c. The bubbles are very thin and disappear quickly, indicating that they contain alcohol. Do not use for a long time, it is easy to damage the skin's protective film.