There Are Several Aspects That Affect The Transdermal Absorption Of Cosmetics

1. The position of the skin, in terms of the face, eye skin, and lips, is easier to absorb than other positions.
The thickness of eye skin is one-third of that of facial skin.
2. Age and gender, the skin absorption capacity of infants and elderly people is higher than that of other age groups.
3. The temperature of the skin. Elevated skin temperature, accelerated blood circulation, and increased hydration can all increase the permeability of substances.
Every 1 degree Celsius increase in skin temperature can increase the absorption of active ingredients by 10 times. Therefore, the absorption rate can be improved by massaging the face with vegetable oil or compound essential oil or making facial mask.
4. PH value. The pH value of healthy skin is weakly acidic, and to provide skin absorption, the product pH should be close to the skin pH value.
5. Functional integrity of the skin barrier. When the skin barrier function is incomplete or damaged, the absorption of cosmetics will be enhanced. Therefore, the skincare products used by MM with this issue must be mild, safe, non irritating, and have certain repair and moisturizing effects.
6. The moisture content of the stratum corneum. After the skin is softened by water, which is highly hydrated, it can increase the absorption of substances. After covering the facial mask for 10 minutes, massage with vegetable oil can improve the moisturizing degree and the absorption ability of vegetable oil.
It is originally a protective barrier used to resist the erosion of the external environment. But as time goes by, the skin ages, its metabolism weakens, and its protective function also decreases.