Niacinamide is a form of vitamin B3. The consulted The Ordinary product information includes it in a water-based serum with zinc PCA and makes it possible to check the ingredient names. This documentary example helps identify the term on packaging without attributing the same results to every product containing niacinamide. Choosing a formula requires its complete information, not a promise based on a single ingredient.
Olfactory descriptions are not equivalent to an ingredient list. The properties of an ingredient do not automatically transfer to the finished product.