Whitening pill can achieve the effect of whitening and removing spots by inhibiting the production of melanin in the body. The most common components in whitening pill are L- cysteine, bioflavonoids, vitamin C and vitamin E respectively. The main function of L- cysteine is to synthesize glutathione. Glutathione is a substance with excellent antioxidant capacity, which can control the production of melanin to a great extent. Bioflavonoids can promote blood circulation and metabolism, making skin look tender and young. Vitamins C and E can mainly resist free radicals and inhibit melanin.
Whitening pill can whiten skin, but it also has side effects. Whitening pill is not suitable for long-term consumption. If the amount of bioflavonoids contained in whitening pill is not well controlled, it may disturb the hormone level in the body.
Moreover, although vitamin C and vitamin E have certain freckle-removing and whitening effects, we should also pay attention to the dosage. Many whitening pill contains a large amount of VC, which is taken several times a day, resulting in the intake of VC content far greater than the human body needs, which will cause a burden on the kidneys.