Safety Considerations of MOTS-c Therapy

Nasal is the only method I have used so far. I got decent results that way and never moved to shots. I have read about people ending up in the ER after injections, so I am hesitant to switch.

Are you going to compound your own? That is common around here with nasal sprays. Larger vials seem practical for making those.

I have been making my own for nearly a year now. The source I started with is no longer available. MOTS-c was my first peptide and it helped drop my A1c before I added other compounds. Back then I avoided needles.

The molecular weight is listed at 2175 daltons, well above the usual 1000-dalton cutoff for good intranasal uptake, so absorption would likely be minimal and no BBB crossing. You would mainly be dosing the sinus area. Anaphylaxis risk exists with any route but is thought lower with nasal than injections. Benefit seems questionable for a higher-cost peptide.

I run every morning and notice a clear difference on days I use MOTS-c versus days I skip it. Despite the size and absorption arguments, my results with nasal have stayed positive.

I saw a Reddit post about someone who made their own nasal version and ended up with a widespread skin reaction that looked like poison ivy.

I check Reddit mainly to see what to avoid. Some posts there look like trolling to me, and it is hard to know if people even have real product. Separate note, it is concerning how many very young people are considering TRT without labs or understanding possible downsides.

Exactly. Most reaction stories involve people who kept dosing after symptoms started because they did not want to waste product and then ended up hospitalized. Peptides act like biologics to the immune system, so a reaction means antibodies are already forming, making further use both risky and ineffective.

MOTS-c probably offers little to younger users without metabolic problems, yet it is promoted as life-changing. It occurs naturally and tracks inversely with insulin resistance. People who already have high natural levels might be more prone to side effects than those who are low, similar to how responses vary for other compounds.

That is a solid point. It could trigger not just immune reactions but autoimmune issues if the body begins attacking its own systems.

Did you get blood work done before starting MOTS-c? The symptoms sound like they could be tied to low blood sugar effects.

I have the recent labs somewhere and will check with my doctor. I will run the hypoglycemia idea past them too.

If the visual episodes return, try glucose right away and note the response. If it clears the symptoms then low blood sugar is likely; if not, something else is going on.

Hypoglycemia is listed as a possible MOTS-c side effect, so it could have dropped levels below normal range temporarily.

I will ask my doctor again when I can. The episodes are infrequent now and mostly stopped after starting GLP-1s except for the bump when I added MOTS-c. My log shows peak dosing around 1 mg morning plus 0.5 mg evening, though usually lower.

I enjoy reading all the back-and-forth with your doctor. A whole thread of those exchanges would be worth following.

I used MOTS-c for about a month and reached the leanest body composition I have seen in fifteen years. I paused to try SS-31 and have now restarted MOTS-c, expecting similar results again.

I agree completely. The effect is clearest during morning runs, but I was going through supply too fast so I also inserted an SS-31 break. It does not match MOTS-c for me.