Niacinamide is an ingredient that’s commonly found in skincare products, and it’s one of the most multi-purpose, too.
Also known as vitamin B3, it can improve elasticity, reduce fine lines, even out skin tone, improve texture, reduce redness, and is often well tolerated by most skin types.
It’s also compatible with many other skincare ingredients, which is why it can sometimes feel like it’s in every product you see, from serums to cleansers, moisturisers, eye creams, and even bodycare. As a result, it’s often safe to use it every day, morning and night.
However, when it comes to finding the right dedicated niacinamide serum for your skin, it can be confusing, given there are so many to choose from at varying price points.
With that in mind, I went straight to the experts and sought the help of two dermatologists to cut through the noise, answer the most commonly asked questions about niacinamide, and unpack how to incorporate it into your existing skincare routine.
Read more: Best retinol body lotions 2026, recommended by dermatologists
Meet the experts
Dr Ketaki Bhate is a consultant dermatologist at Kensington dermatology clinic, No23. Skin. She specialises in complex acne cases and skin cancer diagnoses, in addition to her work as a senior NHS consultant and academic researcher. She has been published extensively in the British Journal of Dermatology, JAMA Dermatology and Clinical & Experimental Dermatology, and is a frequent speaker at national and international dermatology conferences.
Dr Aiza Jamil is a consultant dermatologist at sk:n, a specialist skin care clinic in Manchester. Alongside her British credentials, she is also board-certified in the U.S in cosmetic and medical laser, and trained in aesthetic services including non-surgical facelifts, laser and treating scarring.
Read more: Best retinol creams and serums 2026, tested by a beauty editor