Can You Mix Retinol + Vitamin C + Niacinamide? Here’s the Right Way | Dr. Idriss

Can you use retinol, vitamin C, and niacinamide in the same skincare routine? Yes — but how you layer them, when you use them, and how much your skin can tolerate matters. In this video, I’m breaking down how to combine some of the most popular active ingredients in skincare without overcomplicating your routine or irritating your skin barrier. We’ll talk about retinol, tretinoin, vitamin C, niacinamide, exfoliating acids, salicylic acid, glycolic acid, azelaic acid, and other common skincare actives — including which ingredients can be used together, which combinations may be too irritating for some people, and when it makes more sense to separate products between your morning and nighttime routines. I also explain why “can these ingredients be mixed?” is not always the most useful question. Sometimes the better question is: does your skin actually NEED all of them at once? More active ingredients do not automatically mean better results. If you’re layering too many strong products, you can end up with redness, burning, dryness, peeling, breakouts, or a damaged skin barrier that makes it harder to use the ingredients that actually matter. We’ll also talk about how to build a simple skincare routine around your main concern — whether that’s acne, dark spots, hyperpigmentation, fine lines, uneven texture, redness, or signs of aging. If you’re confused about the correct skincare layering order, whether vitamin C and retinol can be used together, whether niacinamide works