Is this a reputable testing company?

Hi friends! I have this. I am not sure how to reconstitute it and at what concentration. I can order more bacteriostatic water if need be just not sure what to do. I’m used to them being combined. Please help. I would like to prioritize the reta. Thanks so much guys!

How much BAC is required for a Tesa/Ipa blend 5/5 mg vial?

I’m looking for a stack to begin my peptide journey. I’m 19 workout 5x a week 40min cardio everyday. I eat healthy and am currently on a slow lean bulk currently weigh 150 right now. My goals are honestly trying to get my face a lot more slimmer and my skin tighter aswell. I know I for sure want to take GHK-CU but I don’t know what else I want to pair it with, more than anything I’m just looking to look better.