No, I have not tried this mitochondrial peptide stack, but I am on MOTSC at the moment. Just started four days ago. And really now, I've been researching SS31 and NAD+, and I'm probably gonna add them to my stack now because I've seen a fairly massive difference when I added MOTSC. I'm seeing I get a lot of energy before the gym, and after the gym, I have good sustained energy throughout the day. So I think it only makes sense with me adding SS31 and NAD+ to it.
Also, you being on a keto diet is probably the reason why you are more fatigued than usual. Carbs are not the enemy. If you cut carbs even on GLP-1s, you may not feel any hunger, but you will still feel like you have that super low energy feeling and wanting something to eat feeling because eating something will give you energy. so kinda counterintuitive when using glp1s