On the combination of glycolic acid, nicotinamide and retinol
, there are various methods for skin care. Glycolic acid, nicotinamide and retinol are all good skin care products, but whether they can be used together is really related to the profit and loss of the skin, which cannot be ignored.

Glycolic acid belongs to the class of fruit acids and is active. It can loosen the connection between the stratum corneum of the skin, make the old cuticles fall off, rejuvenate the skin surface, make the skin smooth and delicate, and have a uniform color. And it can stimulate the synthesis of collagen in the dermis, enhance skin elasticity, and improve fine lines and wrinkles.

Niacinamide is a derivative of vitamin B3. It can effectively regulate the oil secretion of the skin, shrink pores, and make the skin texture dense. It can also strengthen the skin barrier, resist external stimuli, and inhibit the transfer of melanin to the epidermis, brighten the skin, and improve dullness.

Retinol is one of the forms of vitamin A. It has a profound impact on the metabolism of skin cells, can accelerate keratinocyte renewal, promote collagen production, effectively fight wrinkles, improve skin firmness, and can also improve acne, acne and other problems, making the skin smooth and healthy.

As for whether these three can be used together, the skin characteristics need to be reviewed. If the skin is strong and tolerant, the combination of the three may be synergistic. Glycolic acid opens the skin absorption channel and helps nicotinamide and retinol penetrate better; nicotinamide strengthens the skin barrier, relieves the irritation that retinol may cause, and cooperates with glycolic acid to brighten the skin; retinol promotes cell renewal and works with glycolic acid to resist wrinkles.

However, if the skin is sensitive and fragile, it should be used with caution. Glycolic acid and retinol are both irritating, and the combination can easily cause redness, dryness, desquamation, and even tingling of the skin. Although nicotinamide is mild, it may also increase sensitivity. Therefore, sensitive skin should try each ingredient alone to confirm tolerance, and then use it in a small range, low concentration, and low frequency. It is necessary to closely observe the skin reaction.

In short, if you want to use glycolic acid, nicotinamide and retinol together, you should know your skin condition in detail, follow the principle of moderation, and step by step. If you feel uncomfortable, stop using it, and ask a professional if necessary. In this way, you can achieve the best state of skin care and keep your skin healthy.