Introduce you to preservatives in personal care products
Preservatives themselves are substances that exist to prevent bacterial changes and spoilage of products. In short, they allow spoilage to last longer! Preservatives are added to 99% of our food, including ours, to keep it fresh.
What do preservatives do?
1. to prevent product corruption, any material will have oxidation metamorphic time;
2. to prevent secondary pollution in the process of use, often dig, hand bacteria will repeatedly touch the product, the product is easy to pollution;
3. Prevent organic matter from decomposing harmful substances in skin care products.
Therefore, as long as the use of preservatives stipulated by the state, and not over the amount, then it must be more beneficial than harmful.
Conclusion: The effective storage life of general skin care products is about 3 years, and the preservative-free skin care products, although there are alternative preservatives, but its storage time generally can only reach about 1 year, from the factory to our hands, basically only nine months. With the exception of a few super-sensitive fairies, normal people don't need to care too much about it.
