Both niacinamide and salicylic acid are effective in treating acne, but they work in different ways. Niacinamide, a form of vitamin B3, helps to regulate oil production, improve skin barrier function, and reduce inflammation, making it beneficial for all skin types, including sensitive skin. On the other hand, salicylic acid is a beta-hydroxy acid that penetrates into the pores to unclog them, exfoliate the skin, and reduce acne-causing bacteria.

If your primary concern is reducing inflammation, redness, and improving overall skin health, niacinamide may be a better choice. However, if you are dealing with clogged pores, blackheads, and active breakouts, salicylic acid could be more suitable. Some people also benefit from using both ingredients in their skincare routine, as they can complement each other’s effects. It’s essential to start with low concentrations and gradually introduce them to your routine to see how your skin responds.