I used this kajal. Its really deep black. Stay for almost 8-9 hours during winter. But during summer it tends to spread. Itz makes the down part of the eye dark due to itz spreading nature. They say its smudge proof but not during summer. Otherwise the product it good. I wont suggest u to buy this for summer day. Itz good for winter season. And also its hard to remove making your lashlines appear darker and dirty.