Does salicylic acid irritate the skin? Will low concentrations of salicylic acid make the stratum corneum thinner?

Because salicylic acid can remove aging cuticles in the skin, some friends worry whether salicylic acid will irritate the skin. So, is salicylic acid really irritating to the skin? What kind of skin is not suitable for using salicylic acid?

Does salicylic acid irritate the skin?

Excessive use of salicylic acid can be harmful to the skin. Salicylic acid is mostly suitable for people with oily skin, and salicylic acid products should not be used in large quantities. It will damage the cell walls and harm the skin. But salicylic acid can indeed make the skin smooth, and gently clean the dead skin in the cortex, restore the skin's luster, and make skin care products better absorbed. Therefore, moderate and scientific use is still very helpful to the skin.


What skin types are not suitable for using salicylic acid

Not suitable for sensitive skin or thin skin. Salicylic acid itself is somewhat corrosive. The reason why it is used in skin care products, especially toners, is that its mild corrosiveness can remove excess keratin from the skin, making the skin look smoother and more delicate. Because men's skin is thicker than women's, you can see that most men's skin care products contain salicylic acid. But if your skin is thin and it occasionally gets red, don't use it. If your skin looks dull and has large pores, you can use skin care products containing salicylic acid. Although it is corrosive to the skin, the content in skin care products is within a safe range.

Will low concentration salicylic acid thin the stratum corneum?

Maybe. Salicylic acid is somewhat irritating to the skin. If it is used too frequently, such as every day, even at a low concentration, it will cause the stratum corneum to become thinner. Especially for sensitive skin, the stratum corneum is relatively thin. Using salicylic acid will make the stratum corneum thinner, causing red blood streaks and stinging.


Frequency of use of salicylic acid

The frequency of using salicylic acid should not be too high, generally once a week is sufficient. Avoid frequent use of salicylic acid, which will cause the stratum corneum to become thinner, damage the skin barrier, and turn originally healthy skin into sensitive skin. Therefore, cosmetics containing salicylic acid must be accompanied by warnings to ensure their safety for long-term use. Salicylic acid is an acid after all, and is a special-use skin care product. It is best not to use it for a long time unless necessary.