No.
Retinol not only does not thin the skin, it may also have the effect of thickening the epidermis. Clinical studies have shown that after using 0.3% retinol for one year, the epidermis of the user’s skin becomes thicker.
According to the “List of Used Cosmetic Raw Materials (2021 Edition)” issued by the Food and Drug Administration, the highest historical concentration of retinol used in resident products is 1%. Inside, it is safe for the skin.
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However, because retinol is highly irritating, especially when the concentration is high or the skin is more sensitive, it is easy to cause redness, dryness, peeling, tingling, darkening of the skin, etc. Skin intolerance.
It is recommended to use products with corresponding concentrations according to skin tolerance, and do not pursue high concentrations all at once.
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