What is the mechanism of sun spots? Develop the habit of daily sun protection

What causes sun spots? Sun spots often occur in the summer when the sunlight is strong. There is a kind of melanocyte stem cell in the skin epidermis. Under certain circumstances, it will be activated and release melanin to form spots. What causes sun spots?

What causes sun spots?

UV rays

The most direct influence in the process of melanin production comes from the ultraviolet rays in the sun. It can activate tyrosinase in melanocytes, produce a series of reactions with tyrosinase in the blood, generate a substance called "DOPA", and then convert it into melanin.

Toxin accumulation

Toxins in the skin can activate cell activity and also produce an oxidation reaction with tyrosinase to generate "DOPA" and release melanin. The pollution, radiation, and smoke that we have to face in life will intensify the oxidation process, making the skin tone darker and more uneven.

Cells are stimulated

Pollution, sunlight...all kinds of external threats can cause inflammation of skin cells to varying degrees. In order to repair inflammation, skin cells will naturally react and secrete a tetraenoic acid substance, which will activate tyrosinase to a certain extent and promote the production of melanin.

The principles of the formation of sun spots are introduced above. Now everyone understands it. As long as you develop the habit of daily sun protection, it is not difficult to remove sun spots.