What did @beasttsupplements actually say?
Honestly? It's hard to tell. The transcript from this 549K-view TikTok is largely incoherent, cycling through fragments about selling, money, and language barriers. There is no clear, extractable scientific or health claim here. What we can say is this: the hashtags tell the real story. This video is tagged #mk677 and #rad140results, which means the implicit message, regardless of what words were spoken, is that these compounds are worth buying and produce results worth showing off.
MK-677 (ibutamoren) is a growth hormone secretagogue that mimics ghrelin and stimulates GH and IGF-1 release. RAD-140 (testolone) is a selective androgen receptor modulator, or SARM. Neither is approved by the FDA for human use. Neither is legally sold as a supplement in the United States. The video's promotional framing, talking repeatedly about selling and money, situates it squarely in the gray-market supplement influencer ecosystem, where implied results do the work that explicit claims legally cannot.
Does the science back this up?
For MK-677, there is actual research. For RAD-140, the human data is thin. The hashtag #rad140results implies visible physique changes, but the clinical evidence for RAD-140 in humans is almost nonexistent, and what exists is not encouraging for safety.
MK-677 has been studied in peer-reviewed contexts. Nass et al. (2008, Journal of Clinical Endocrinology and Metabolism) found that MK-677 increased GH pulse amplitude and IGF-1 in healthy older adults over two years. There was also a small but measurable increase in lean mass. That is real data. But the same study found increased fasting glucose and insulin resistance. That trade-off matters and rarely gets mentioned in gym content.
RAD-140 is a different situation. Preclinical data in animals shows anabolic effects, but human trials are essentially absent. The FDA issued warnings about SARMs in 2017, citing risks of liver toxicity, heart attack, and stroke. A case report by Garg et al. (2021, BMJ Case Reports) documented drug-induced liver injury in a 32-year-old man who used RAD-140 for six weeks. That is not a fringe outcome. It is a documented clinical risk with no approved human dosing protocol to minimize it.
What did they get wrong (or right)?
Because the transcript contains no coherent health claims, there is nothing specific to correct on scientific grounds. But the framing gets things wrong by omission, which is its own kind of misleading. Promoting or implying the sale of MK-677 and RAD-140 to a general gym audience without any safety context is irresponsible, full stop.
What the video implicitly gets right, without saying it, is that MK-677 does affect growth hormone signaling. That is pharmacologically real. Researchers like Copinschi et al. (1996, Sleep) showed MK-677 increases nocturnal GH secretion. The compound has measurable biological activity. But biological activity and safe, beneficial use in unsupervised gym contexts are not the same thing.
The commercial framing, repeated references to selling and making money, is worth naming directly. This is not educational content. It is promotional content wearing the costume of gym culture. A 549K-view audience deserves better than that, and the absence of any safety information is a real failure regardless of what language is being spoken in the video.
What should you actually know?
If you are considering MK-677 or RAD-140 based on gym influencer content, here is what the research actually shows, without the sales pitch.
- MK-677 increases IGF-1 and GH secretion. This is documented. It also increases appetite, can raise fasting blood glucose, and may cause water retention and joint pain. These are not rare side effects. They appear consistently across studies.
- RAD-140 has no approved human dosing protocol. It is not a supplement. It is an investigational compound. Case reports of liver injury exist. There are no long-term human safety studies.
- Both compounds are on the World Anti-Doping Agency (WADA) prohibited list. Athletes subject to testing face serious consequences.
- Buying either compound from unregulated online sellers, the implied context of this video, carries additional risks. Third-party testing by organizations like USADA has found many gray-market products are mislabeled, underdosed, or contaminated.
- A regulated telehealth provider can discuss peptide therapy options within a supervised framework with proper screening, labs, and monitoring. That is categorically different from buying compounds promoted in hashtag-driven TikTok content.