Has anyone ever used a collagen creamer?

I’m 6 weeks pp and ready to start losing weight and getting fit again. I’ve been looking at protein and what not to get and came across something called a collagen creamer. It looks interesting as it’s a creamer for your coffee but has the benefits of collagen and MCT in it. Has anyone ever used something like this? Is it worth it? Is it safe while breast feeding? It’s rather expensive so I’d like to know more about it before spending all that money on it.