Public Q&A Library
Answered skincare questions organized by topic.
Searchable answer database for acne, pigmentation, sunscreen, dry skin, sensitive skin, product mixing, beginner routines, and budget questions.
Can I use niacinamide with vitamin C?
For most people, niacinamide and vitamin C can be used in the same broader routine. If your skin is new to actives, keep vitamin C in the morning and niacinamide at night for two weeks, then reassess. If you notice stinging, scale back before adding anything else.
Which sunscreen will not melt on oily skin?
Look for a matte or gel-cream sunscreen and set realistic expectations: sweat changes every sunscreen. Apply enough in the morning, carry a compact or sunscreen stick for reapplication, and choose formulas that dry down instead of dewy ones.
My skin burns after salicylic acid. What now?
Pause salicylic acid and all exfoliating products. Keep a plain cleanser, barrier-support moisturizer, and comfortable sunscreen for at least two weeks. Burning is a sign to simplify, not add more. If pain, swelling, or severe acne persists, speak with a dermatologist.