SA (Salicylic Acid)

Salicylic acid (SA) is a naturally occurring plant hormone that plays a key role in plant defense and growth regulation. It enables plants to respond to stress, such as pathogen attacks or injuries, by activating immune responses. In addition, salicylic acid influences the development of certain plant structures and can help in disease resistance. It is also used in skincare products for its ability to penetrate pores, exfoliate dead skin cells, and treat conditions like acne, owing to its anti-inflammatory and keratolytic properties. Overall, SA is vital for plant health and beneficial in various cosmetic applications.