Is creatine safe to take as a 14 year old?

I'm 14 and I've been thinking of taking creatine. My friend's been taking it under his cousin's supervision, and he told me it's safe and the most researched supplement and stuff like that. I also heard that it helps with cognitive function and injury reduction.

I've been going to the gym on and off for maybe a year now (consistent for a few months then not) but I'm locking in way more with it, so it may be time to start taking creatine since its said to help so much.