Niacinamide is effective for the treatment of various pigmentation mark and skin problems such as acne. 
There are several steps got through from the formation to pigmentation of melanin in the skin, and niacinamide alone can not stop all of these steps. This is also the same for the several steps of having skin problems. 

Peptide is an ingredient that makes up for these parts that niacinamide can not resolve and can take effect in the skin.

Using peptide product with niacinamide product together bring a great effect to improve pigmentation and skin problems.