Dr. Lim described it as one of the most versatile and well-tolerated active ingredients available, with strong evidence for addressing pigmentation, supporting the skin barrier, regulating sebum production, and reducing the appearance of enlarged pores. It works at concentrations as low as two percent, it is stable, it layers well with most other ingredients, and it is available at accessible price points across multiple brands.
Her observation was that niacinamide does not trend the way newer ingredients do because it does not have the same dramatic before-and-after narrative. But for someone building a long-term skincare routine, she would consider it a foundational ingredient alongside SPF and a good moisturiser.



