Nip + Fab say it's a lightweight moisturiser, that is designed to hydrate and protect the skin while it's oil-free formula helps to control shine.
Fruit acids: stimulates skin cell renewal, resulting in skin appearing younger and fresher.
Amino acid derivatives: reduces the appearance of pigmentation.
Now, I use this either twice or once a day, if it's once then it'll be at night to coincide with the night pads. What I like about this serum - besides the fact it's glycolic acid - is the packaging. The lid contains a click - smart. So before use I click once to get the product within the dropper and unscrew, click to release onto the back of my hand, two drops are more than enough and then apply to my face. Sometimes I apply it to my moisturiser.
+ please, let's remember our sunscreen even more so when you're using acid concentrated products. It'll help to protect your face as well as stop dark marks getting darker and you won't see any progress.