In the past, the use of herbs is to use the spoken word by folk without research. Research how to prepare simple, as such, both abroad and in the Thai society itself until the current research is seriously comprehensive frequency and still less for cosmetics. Herbs, this is because the chemical element, which is an important substance in each type of herb and some cannot be analyzed by means of a chemical plant many types of herbs are also. I don't know the exact chemical elements one at a time.What consumers should take into consideration is the herbal cosmetics, there are often many problems is the problem of stability extracts. Herbs and the performance of the product from the manufacturer.Herbal extracts are most often have stability issues in environments of high temperature and alkali-acid of different herbal extract does not make these on the. In short, the age of the product and (Limited shelf life) to observe, such as the color of the meat, cream, or yellow-brown slate will likely make further performance decrease skin before buying, it should be observed, as well.In terms of performance, it is usually based on the elements in a typical skin recipes. We will act to protect all kinds of substances do not infiltrate into the skin easily. Therefore, it found that the herbal extract that was mixed into cosmetic products if you do not. Recipes have been developed, but are useful medicinal extracts, such as consumer or soluble in water, mix in the cosmetic products should be developed through the recipes of molecules concentrates skin cells into skin deep. If the active ingredients cannot be absorbed into the skin cells on the ground floor, it will not result in. Performance as needed.The performance of a product that is a mixture of herbal extract another important concentration of extracts, if low concentrations the effect substance percentage. In rare cases, not sufficient to act beneficial to the skin, it does not occur, or very little.
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