- Salicylic Acid: Helps unclog pores and reduce inflammation. - Benzoyl Pesticide: Kills bacteria and can help prevent acne formation. - Retinoids: Often available in prescription creams or gels and are very effective for moderate acne. - Adapalene : A retinoid available over-the-counter that can be used at night. - Azaleic Acid: Has antibacterial properties and can also help with acne marks. - Niacinamide: Can help improve the skin's barrier and immunity.