What's the minimum effective daily dose of C60? How long does a given amount of C60 last? To answer those questions, we need metrics or markers of its activity. Ideally, we would have quantitative levels of clinical parameters like the Genova oxidative stress panel. Such tests are expensive however, and it would also be nice to have some more accessible parameters. One thing that might work is the amount of reps at constant weight we can get in a trained muscle before muscle fatigue sets in. I had been at a fairly long term plateau on a particular exercise, consistently failing on the 8th rep of the second set. (ten reps in first set). I took 1.5mg/day for 4 days, then stopped taking C60-oo. On the first day after the last dose, I finally made it into the gym, and blew past my previous record. I stopped at 12 reps, but could have done more. On the 4th day, I did 14 reps, and still could have done more. (I'm trying not to injure myself) My plan is to not take any more C60 until I get back to some semblance of baseline.
Had I run this experiment more thoughtfully, I would have taken a single dose of a smaller amount, then followed the effects. At the time, I wasn't sure what I'd see. Assuming I get back to something like baseline, that's what I'll do.
I've counted 11 reports of enhanced weight lifting performance, from doses ranging from 1.5mg to 130mg. There seems to be no relationship between dose and response, suggesting that either this is all placebo effect or that the minimum effective dose is 1.5mg or less. I have to say, I lean toward the latter, based on everything I've heard, my own experience, and what's in the literature. I recall the Ukrainian Hydrated Fullerene people saying that appropriate doses were very low- they're selling it in microgram per ml concentrations. It might be the case that the minimum daily dose of C60-oo is in fact in the low microgram range. It's almost certainly less than a milligram.
The question of how long C60 lasts should be directly related to the minimum daily dose, by definition: The MDD should last one day. The most likely situation is first order kinetics, so twice the MDD would last two days, three times the MDD would last three days, etc. But this remains to be demonstrated. It may well be the case that in the vicinity of the MDD, a dose-response relationship would show up, as well. In other words, there may be a dose that gets you one or two extra reps, while a larger dose gets you more reps. At some point, there will be a different muscle fatigue mode that is insensitive to further increases in dose.
What is going on, physiologically, with this putative muscle fatigue marker? The following paper suggests that ROS are involved:
J Appl Physiol. 2008 Mar;104(3):853-60. Epub 2007 Nov 15.
Muscle-derived ROS and thiol regulation in muscle fatigue.
Ferreira LF, Reid MB.
Department of Physiology, University of Kentucky, 800 Rose St., Lexington, KY 40536-0298, USA.
Muscles produce oxidants, including reactive oxygen species (ROS) and reactive nitrogen species (RNS), from a variety of intracellular sources. Oxidants are detectable in muscle at low levels during rest and at higher levels during contractions. RNS depress force production but do not appear to cause fatigue of healthy muscle. In contrast, muscle-derived ROS contribute to fatigue because loss of function can be delayed by ROS-specific antioxidants. Thiol regulation appears to be important in this biology. Fatigue causes oxidation of glutathione, a thiol antioxidant in muscle fibers, and is reversed by thiol-specific reducing agents. N-acetylcysteine (NAC), a drug that supports glutathione synthesis, has been shown to lessen oxidation of cellular constituents and delay muscle fatigue. In humans, NAC pretreatment improves performance of limb and respiratory muscles during fatigue protocols and extends time to task failure during volitional exercise. These findings highlight the importance of ROS and thiol chemistry in fatigue, show the feasibility of thiol-based countermeasures, and identify new directions for mechanistic and translational research.
PMID: 18006866 Free full text
Some questions for C60 users:
Does anyone have any other ideas for markers that we could use to probe the questions of minimum dose and duration of action?
Has anyone stopped taking C60 to look at the length of duration? Newton Pulsifer found that two months after discontinuing, a 40% increase in reps had faded to a 20% increase. His dose was 12mg/d for 2w, then 12mg twice a week for 2w before stopping. Lister mentioned effects fading a week after 1.5mg/d for some amount of time.