The main functions of Salicylic Acid include anti-inflammatory, exfoliating, antibacterial, promoting wound healing, and repairing the skin barrier. Specifically:

1. Anti inflammatory effect: Salicylic acid can alleviate skin inflammation and redness, and has significant effects on treating skin diseases such as acne and dermatitis.
2. Exfoliation effect: Salicylic acid can promote the shedding of the stratum corneum, improve skin roughness and dullness, and make the skin smoother and more delicate.
3. Antibacterial effect: Salicylic acid has strong antibacterial activity against a variety of gram-positive and negative bacteria, and can be used to treat acne and other skin infectious diseases.
Promoting wound healing: Salicylic acid can inhibit fibroblast proliferation and induce apoptosis, reduce inflammation and tissue edema at the wound site, and help promote wound healing and reduce scar formation.
4. Skin barrier repair: Salicylic acid has the effect of promoting epidermal cell growth and differentiation, which can help restore damaged stratum corneum and is suitable for skin barrier damage caused by trauma or inflammation
5. Dissolve oil: It can penetrate deep into pores to dissolve oil, unblock sebaceous glands, and improve the vigorous secretion of oil
6. Whitening and elimination of pigmentation: Salicylic acid can penetrate into pores, dissolve aging keratinocytes, fade pigmentation, and enhance skin cell metabolism
7‌. Antipruritic: Reduce the release of histamine or other inflammatory mediators, and alleviate skin itching
8. Shrink pores: Accelerate the shedding of aging keratin and promote the renewal speed of keratinocytes and epidermal cells, which is beneficial for eliminating toxins from pores and relieving symptoms of enlarged skin pores