i have using niacinamide serum from past 6 months. i have seen huge difference in skin. i am in love with it. it really controls sebum production. i dont look oily greasy anymore. one bottle may last upto 3-4 months depends upon the usage. Must buy for oily & acne prone skin.

I m personally using this product.it is very effective and safe nd chemical free. It helps in reducing acne and pimples.must try good results.

experienced changes in 2 weeks my skin felt better most of the acne marks started to fade except the big stubborn ones thanks to derma co for making genuine quality products available at such reasonable rates and jaw dropping offers

Good one for oily skin with acne & marks..