1. Because handmade soap is too alkaline, it will damage the sebum membrane, wash off the oil, destroy the barrier function, and lose the moisture in the skin. You know, the usual cleaning time is about 2-3 minutes, and the reason why some people suggest that manual soap cleaning should not exceed 30 seconds as far as possible, and cleaning with a lot of water, just shows that manual soap itself is very irritating, once it is in contact with the skin for too long, it will cause irritation to the skin.
2. Soap alkali content is high. After washing your face, if a small amount of soap alkali remains on your skin, it will cause rapid loss of skin moisture. Emphasis on timely moisturizing after cleaning is also because the alkalinity of handmade soap is easy to destroy the stratum corneum of the skin itself and damage the moisturizing function of the skin itself.
Extended data:
The most important materials for making soap are water, oil and alkali, and the production process must go through the action of oil and alkali. From this perspective, it is not a natural substance. Environmental protection and skin care handmade soap will use food-grade high-grade grease and alkali, which is natural in terms of raw materials.
Handmade soaps with different raw materials will emit different smells, which will not be too strong and lasting, but the smell is not necessarily the taste of the raw materials themselves. Some brands will add natural essential oil and Chinese herbal medicine essence to match the efficacy of the main ingredients.
But there are many handmade soaps, and various ingredients are added, such as fresh flowers, fruit juice and even human milk. These ingredients seem to be good for the skin, but they are unstable, perishable or not disinfected, and they can't work as scheduled when added to handmade soap.
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