When it comes to the combined use of glycolic acid and retinoic acid for skin care, everyone seeks its good. Glycolic acid and retinoic acid are both commonly used agents in skin care, but it is doubtful whether they can be used together.

Glycolic acid belongs to the class of fruit acids and has the ability to exfoliate. It can make the old keratin on the surface of the skin shed, make the skin smoother and more delicate, and can promote the metabolism of the skin, making the skin glow.

Retinoic acid has significant effect on regulating the growth and differentiation of skin cells. It can improve the keratinization of hair follicles, reduce the generation of acne, is beneficial to skin diseases such as common acne, and can also promote collagen production and delay skin aging.

As for whether the two can be used together, it should be considered in detail. Glycolic acid can cause the stratum corneum of the skin to thin and enhance the permeability of the skin. Retinoic acid itself is also irritating to the skin. If the two are used together, it may greatly increase the irritation of the skin, causing skin redness, tingling, desquamation and other discomforts.

However, if used properly, it may also have a synergistic effect. If the skin tolerates well, you can try it with low-concentration glycolic acid products first. After the skin adapts, you can carefully combine low-concentration retinoic acid. And it is appropriate to start with a small amount and a small area to observe the skin's reaction.

When using, you should also pay attention to many matters. Sunscreen is required for daytime use, as both may make the skin more sensitive to ultraviolet rays. If not properly protected, it is easy to cause sunburn, tanning, and accelerate skin aging. At the same time, close attention should be paid to the skin reaction. If there is serious discomfort, stop using it immediately and seek professional medical help.

In short, the combined use of glycolic acid and retinoic acid needs to be carefully done according to personal skin conditions, and the advantages and disadvantages can be weighed to achieve the best effect of skin care and avoid the risk of skin damage.