Skincare Actives Chart: How to Layer Retinol, Vitamin C, Niacinamide, AHAs/BHAs + Best Pairings

I put together a simple skincare actives chart based on what actually worked for my routine: when to use retinol vs vitamin C, what to pair (niacinamide + ceramides, HA with everything), what to avoid (AHA/BHA + retinol), and how often to use each active without wrecking your barrier.