Ingredient Science
How skincare ingredients work, which ones pair well, which ones conflict, and the science behind popular active ingredients.
Can You Use Retinol and Salicylic Acid Together?
Short answer: Yes, retinol and salicylic acid work together safely when you separate them by time. Using both on the…
Niacinamide and Vitamin C: The Flushing Myth Explained
Short answer: Niacinamide and vitamin C do not cause flushing when used together. The myth originated from a misreading of…
Can You Use Retinol and Vitamin C Together?
Retinol and vitamin C both deliver proven anti-aging and brightening results, but they work best when used at different times…
Can You Use Retinol and Niacinamide Together?
Yes, retinol and niacinamide work well together. The old claim that niacinamide causes flushing when paired with retinol comes from…