On the Usage of Glycolic Acid
For those who use glycolic acid, it has outstanding efficacy in the field of skin care, but its usage is quite exquisite.

If you want to use glycolic acid, the first thing to consider is the nature of the skin. If the skin is delicate and sensitive, it should be slow and thin when you first use it. You can first take a small amount of glycolic acid-containing products and apply them to the skin behind the ear or in the wrist. Wait for a few hours to see if there is any discomfort, such as redness, itching, and tingling. If there is no abnormality, the next step can be taken.

When using on the face, after cleansing and cleansing the skin, when the skin is slightly dry, apply the skin care products containing glycolic acid evenly to the surface in a gentle method to avoid the delicate areas around the eyes and lips. At the beginning, the frequency should not be high, once or twice a week is better. When the skin gradually adapts, it can be increased to three to four times a week depending on the situation.

Furthermore, glycolic acid has the ability to exfoliate, and the skin is more sensitive to sunlight after use. Therefore, when using it during the day, you must do a good job of sun protection, apply sunscreen, and wear sunshade clothing to avoid direct sunlight, so as to avoid sunburn and tanning, which will damage the beauty of the skin.

Also, during the use of glycolic acid, the skin may feel dry. This requires frequent moisturizing, using moisturizing toners, lotions or creams to maintain the skin's hydrated state, so that glycolic acid can exert its effect, and the skin must also be nourished and cared for to achieve the purpose of optimal skin care.