Looking to add to my current stack. I’m debating between these two. Has anyone taken them and if so which is better. I know GLOW has TB-500 and BPC-157 but I can’t decide if it’s worth it or if I should just get GHK-CU

Making my first order and I have a question I’m trying to I want to start slow I ordered Reta but I’m trying to decide between CJC/IPA and Tesa to also take. I would take .5mg daily to save a little money and start slow. What are your guys thoughts