How melasma is formed

Melasma is a light brown or light black patch of varying size and irregular shape, often symmetrically distributed on the bridge of the nose and both cheeks. Although it has no effect on health, it is very detrimental to beauty. What exactly is the cause of melasma?

Improper use of cosmetics

Cosmetics contain many chemical substances and heavy metals such as lead and mercury, and frequent use of cosmetics can easily cause these harmful substances to stimulate the skin and cause chloasma. In addition, the residue of cosmetics on the skin due to incomplete makeup removal after makeup application is also likely to produce melasma.

Improper facial cleansing

Incomplete facial cleaning will lead to dirt and oil blocking the pores and affecting the normal breathing of the pores, while excessive facial cleaning will lead to the destruction of the original oil layer of the skin and the loss of the protective layer of the skin, causing melasma to appear.

Ovarian dysfunction

The ovaries of women play an important role in the secretion of sex hormones. Ovarian dysfunction will lead to increased secretion of estrogen in the body, causing melanin to be deposited in the skin to form chloasma and other pigmentation spots. In addition, gynecological diseases may also lead to endocrine disorders in the body and cause chloasma formation.

Use of contraceptive pills

Contraceptive pills are generally estrogen and progestin, and women who often take oral contraceptive pills are likely to have relatively higher levels of estrogen and progestin in their bodies, which will accelerate melanin deposition and form chloasma.

Influence of disease

Melasma can be triggered when the body suffers from liver disease, tuberculosis, anemia, hyperthyroidism, chronic alcoholism, chronic pelvic inflammatory disease, menstrual disorders and other diseases. This is because all these diseases are related to endocrine disorders such as ovarian, pituitary and thyroid gland.

Influence of pregnancy

Women who are pregnant are prone to chloasma. This is because the amount of estrogen and progesterone in pregnant women's body increases during pregnancy, which stimulates the increase and deposition of melanin. Generally, melasma that appears during pregnancy will gradually fade away with delivery, but it may reappear in another pregnancy.

Influence of diet

If you eat meat and other acidic substances in your diet for a long time, it will easily lead to an acidic environment in your body, which will affect the smooth discharge of toxic substances from your body and lead to melanin deposition in your skin, forming melasma.

Influence of sunlight

Prolonged exposure of skin to bright light or strong ultraviolet radiation can easily induce the production of melasma. This is because the skin has the ability to protect itself. When the UV rays are too strong, the skin will secrete a large amount of melanin to help the cells not to be oxidized, and a large amount of melanin will be deposited to form melasma.