On the comparison of the whitening effects of vitamin C and glycolic acid
There are various methods for skin whitening, and vitamin C and glycolic acid, the two are quite eye-catching. Let's try it now to make sense.

Vitamin C has antioxidant properties and can block melanin production. Melanin is the main cause of skin dullness. Vitamin C enters skin cells and interacts with tyrosinase to reduce its activity and melanin production. And vitamin C can reduce the already born melanin, from dark to light, and the skin will gradually brighten. Looking at daily life, it is common in skin care products, such as essences and creams, and vitamin C is used as an essential agent to brighten the skin.

Glycolic acid, a type of fruit acid, can relax the stratum corneum and promote the exfoliation of old keratin. The old keratin on the surface of the skin is exfoliated, new cells appear, and the skin tone is smooth and bright. It is also effective in improving rough and fine lines of the skin. It accelerates the metabolism of keratin and makes the skin rejuvenated and orderly. It is used in medical beauty and daily skin care products, such as glycolic acid rejuvenation, which can quickly achieve the fruit of whitening and rejuvenation.

However, compared with the two, each has advantages and disadvantages. Vitamin C is mild, suitable for many skin types, and sensitive skin may also be accepted. However, its stability is poor, and it is easily inactivated when exposed to light and heat. Be careful when storing and using. Glycolic acid whitens quickly, exfoliation is strong, but it is highly irritating. Use it for sensitive skin, or cause redness, itching, and tingling. Before use, a skin test is required, starting from a low concentration and gradually adapting.

To sum up, if you want to whiten the skin, choose vitamin C or glycolic acid, according to your skin type. Peaceful and stable, choose vitamin C; if you want speed and resistance to irritation, glycolic acid can be tested. Only carefully selected and properly used can you achieve the wish of whitening and beautifying the skin.