Which ingredient is recognized for its anti-inflammatory properties in acne treatment?

The ingredient known for its anti-inflammatory properties in acne treatment is niacinamide. This compound, also known as vitamin B3, has been shown to reduce redness and swelling associated with acne lesions. It works by inhibiting the production of pro-inflammatory cytokines, which are substances involved in the inflammatory response that can exacerbate acne. Niacinamide also helps strengthen the skin's barrier function, improve texture, and regulate oil production, making it particularly beneficial for acne-prone skin.

While other ingredients like salicylic acid and benzoyl peroxide are effective in treating acne by reducing clogging and killing acne-causing bacteria, they do not primarily function as anti-inflammatory agents. Glycolic acid, primarily an exfoliant, helps to remove dead skin cells but does not possess the specific anti-inflammatory attributes that niacinamide is well-known for. Therefore, niacinamide stands out as a key ingredient that not only treats acne but also addresses inflammation directly, making it a popular choice in acne treatment formulations.