A little definitely goes a long way with this primer. I have dry skin so using the Baby Skin helps my makeup glide on a lot smoother. With it, my foundation and concealer is less likely to cling to dry patches on my face. I notice that it does increase the longevity of my makeup. I recently came back from a trip to India where I was using the primer everyday. It kept my makeup on lock-down, my face looked as fresh at the end of the day as it did when I applied my makeup in the morning!
I love the packaging, it's so cute. Easy to pop in your makeup bag on the go!
A word of caution: if you have oily skin and are prone to acne, this may not be the primer for your. It adds an extra layer of slickness which you could probably do without.