What did @benross02 actually say?
The short version: this creator spent about a minute telling 180,000 people that one month of MK-677 made him "the strongest I've ever been," helped him lose fat and gain muscle simultaneously, and caused him to grow two centimeters in height. He also credited it with faster hair growth, better skin, and improved sleep. Then he offered to DM people his source.
That last part matters. Directing followers to a private supplier for an unregulated compound with no dosing guidance, no medical supervision, and no accountability is not "giving the real real results." It is an uncontrolled experiment with an audience, and the 180K view count means a lot of people received this as legitimate health advice.
Does the science back this up?
Some of it, partially. MK-677 is a ghrelin mimetic and growth hormone secretagogue, meaning it stimulates the pituitary to release more growth hormone and, downstream, raises IGF-1 levels. The effects he describes, including better sleep and modest body composition changes, are biologically plausible and have partial research support. The height claim is almost certainly not what he thinks it is.
On sleep: Copinschi et al. (1997, Sleep) found that MK-677 increased REM sleep and slow-wave sleep in healthy adults, so "my sleep's better" is actually one of the more defensible things he said. On body composition: Svensson et al. (1998, Journal of Clinical Endocrinology and Metabolism) found modest lean mass increases with oral MK-677 in healthy subjects, though the effect sizes were not dramatic and fat loss was not a primary finding. On height: in skeletally mature adults, growth hormone elevation does not lengthen bones. That is not how adult bone physiology works.
What did they get wrong (or right)?
The height claim is the biggest problem here. He says he "grown two centimeters" and seems to attribute this to MK-677. In adults with closed growth plates, this does not happen from a GH secretagogue. What can happen is spinal decompression from improved sleep posture and reduced cortisol, or simple measurement error. Two centimeters in a month from a drug is not a credible claim, and presenting it as fact to a young audience that may still be hoping to grow is irresponsible.
The simultaneous fat loss and muscle gain claim, sometimes called body recomposition, is plausible under specific conditions, particularly in beginners or in individuals returning after a break, where elevated GH and IGF-1 can support both processes. He may have experienced something real here. But calling it a drug effect without controlling for training, diet, sleep, and stress is not evidence of anything.
What he got right: the sleep improvement claim has legitimate mechanistic support. Hair and skin changes are consistent with elevated IGF-1 signaling. These are not fabricated outcomes.
What should you actually know?
MK-677 is not approved by the FDA for any indication. It is not a peptide in the technical sense but a small molecule, and it is currently banned by WADA in competitive sports. It raises blood glucose and insulin levels, which is a real concern for anyone with metabolic risk, and long-term safety data in healthy adults is thin. Nass et al. (2008, Annals of Internal Medicine) studied MK-677 in older adults and found increases in fasting glucose and a higher rate of congestive heart failure in the treatment group, though that was an older population.
The bigger issue is access. Getting this compound from a DM referral means no purity testing, no verified dosing, no oversight, and no recourse if something goes wrong. Compounded and research-grade versions vary widely in quality. Anyone considering a GH secretagogue should be doing it under clinical supervision with baseline labs, not because someone on TikTok had a good month.
- MK-677 has a legitimate research profile, but it is not approved for human use outside clinical trials
- Height gain in adults from this compound is not supported by any published evidence
- Sleep and skin improvements are biologically plausible based on GH and IGF-1 signaling
- Sourcing from unverified suppliers carries serious contamination and dosing risks