# Salicylic vs. Glycolic Acid: Which Exfoliant Works Better
Salicylic acid and glycolic acid treat different skin problems. Salicylic acid works best for acne because it penetrates oil-filled pores. This beta hydroxy acid dissolves sebum buildup that causes breakouts. Glycolic acid targets surface-level skin damage. This alpha hydroxy acid removes dead cells and works better for fine lines and discoloration.
Dermatologists recommend salicylic acid for acne-prone skin. It reaches deep into pores where bacteria thrive. Glycolic acid suits anti-aging routines because it stimulates collagen production and improves skin texture over time.
Combining both acids is possible but requires caution. Using them on the same day risks irritation, redness, and sensitivity. Start with one acid, use it consistently for two weeks, then add the second if your skin tolerates it well. Begin with lower concentrations. Salicylic acid typically ranges from 0.5% to 2%, while glycolic acid starts at 5% to 10%.
Neither acid works overnight. Results take four to eight weeks. Stop use if you experience excessive peeling, burning, or persistent redness. Sunscreen becomes essential when using either acid, as both increase sun sensitivity. People with sensitive skin should patch test before full application.