I don't have experience with CJC but did a recent cycle of 16 weeks of Tesa 1mg at night before bed Sunday through Thursday. Took Friday and Saturday off. The injection stung a little but that went away within 30 minutes or so. Wasn’t bad - at least not like GHK-Cu.
I was given some great advice before I started Tesa which I will pass along. If you can, try to do a DXA scan. I bought a 3-scan package for $200 from a scanning center where I live. I did the first scan this year in January and a follow up scan in late April. My visceral fat dropped 37%.
Full disclosure: I am a 60 year old male. Since January, I have been taking testosterone and researching Reta, GHK-Cu, Semax/Selank and recently added NAD+ in late April. I workout 4 to 5 days per week mixing strength and cardio.
My doctor recommended CJC/Ipa but I wanted to complete my cycle of Tesa first. TBH, I bought a bunch from Nexaph so I’ll probably finish that before I consider CJC/Ipa.
If you have any other questions about Tesa, I will try to answer them from my experience, but I am not a doctor and none of this is medical advice. I’m just an old dude that likes taking drugs.