It's a niacinamide serum, very good for fading dark spots and dullness. Do try it and you'll see the difference. This has been used, more than half is still there ( almost 20ml). You can check the images. NOTE: Please make sure you resolve your doubts in the comments before placing any order. Make an opening video of the parcel for any future claim. Otherwise any of your complains won't be entertained 🙏🏻