DMS Cosmetics

 

 

 

 

Hyperpigmentation

 

The process by which melanin is formed is that when exposed to ultraviolet rays, tyrosine → dopaquinone → melanin.

The enzyme that helps tyrosine become dopaquinone is tyrosinase, and tyrosinase also helps when dopaquinone becomes melanin.

 

 

Causes

 

• When the skin worsens due to pollutants, allergenic substances, or other irritants, melanin production increases.

 

 

• Psychological instability, such as stress, disrupts the balance of metabolism, slows the supply of nutrients needed by the skin, and promotes the secretion of adrenocorticotropic hormone from the pituitary gland.   This increases the activity of melanocyte-stimulating hormone, causing excess melanin pigment to be produced, which becomes a major cause of hyperpigmentation.

 

 

• If the liver is not functioning well and metabolism is not smooth, female hormones are not excreted, increasing the activity of female hormones in the blood and stimulating melanocytes.   In addition, if the ovaries, the body’s factory for producing various female hormones, do not function properly, hyperpigmentation can also occur, and thyroid diseases or endocrine disorders are also known to have an effect.

 

 

 

 

 

 

 

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