Unexpected IGF-1 Tesamorelin Lab

[Zydeceltico]

TLDR: I stopped tesamorelin and my IGF-1 increased.

7/16/25: IGF-1 of 108
8/6/25: Started tesa @ 2mg/day
8/26/25: IGF-1 of 188; continued tesamorelin @ 2mg/day
12/8/25: stopped tesamorelin altogether due to up coming heart surgery and did not begin again.
1/16/26: IGF-1 of 202 (no other peps than stacked tirz and survo this entire time).

All labs are Labcorp.
I lost 38 lbs between Aug and Dec.
Not what I expected to see on 1/16/26.

Thoughts?

 

[cheaperseeker]

My guess is, your IGF-1 went up even more between August and December, and just hasn't come all the way back down yet.

 

[Zydeceltico]

My guess is, your IGF-1 went up even more between August and December, and just hasn't come all the way back down yet.

I would tend to agree except that it is my understanding that IGF-1 gains from tesamorelin fall of much, much quicker than that. Like almost immediately within a few days to a week.