Salicylic acid is a beta-hydroxy acid, which means that the hydroxyl part is separated from the acid part by two carbon atoms. Salicylic acid is more soluble in water, so it can penetrate the skin. Both alpha and beta hydroxy acids exfoliate the skin, but alpha hydroxy acids are water-soluble while beta hydroxy acids are oil-soluble. Oil-soluble ingredients can go deeper into the skin than water-soluble ones. Salicylic acid is an effective acne treatment, especially for blackheads and whiteheads. It penetrates the skin, dissolving debris, clogging pores, and reducing redness and pus.
Salicylic acid is a type of acid that has a multitude of applications, particularly in the treatment of acne and other dermatological conditions.
Hydroxyacetic acid, also referred to as fruit acid, has been demonstrated to facilitate the renewal of the skin, enhance its luminosity, and diminish the appearance of discoloration. Salicylic acid is an oil-soluble BHA that has been demonstrated to effectively cleanse pores, remove clogs, reduce the size of pores, and lighten acne marks. Hydroxyacetic acid and salicylic acid have been shown to possess similar abilities to lighten acne marks and pigmentation. However, they have been observed to act through different mechanisms. Hydroxyacetic acid has been found to be beneficial for individuals with dry skin and those experiencing the signs of aging. In contrast, salicylic acid has been shown to be particularly effective for those with oily skin and a tendency towards acne.
How to use hydroxyacetic acid and salicylic acid together?
If your skin has both dry and acne problems, consider using hydroxyacetic acid and salicylic acid together. The specific method is to use hydroxyacetic acid products to exfoliate first in the evening basic care steps, and then use skin care products containing salicylic acid to help deep clean pores and prevent the growth of acne.
It is important to note that since hydroxyacetic acid and salicylic acid are both harsh chemicals, you should start with a low concentration of the product when using it for the first time and gradually adjust the concentration and frequency of use. At the same time, the use of the process should pay attention to sun protection, to avoid sun damage to the skin.