Peptides & Research Chemicals
MK-677 (Ibutamoren)
Street names: Ibutamoren, Nutrobal, MK677
Overdose? Act now. Call emergency services — say "unresponsive, not breathing". Give naloxone for opioid-like signs. Hotlines
⚡What it does
- Ghrelin-receptor agonist — spikes growth hormone and IGF-1, mimics hunger hormone
- Studied for GH deficiency and muscle wasting (formal trials stalled)
⚠Key risks
- Sold in the 'longevity' and bodybuilding grey markets 2022+ with zero post-marketing safety data
- Insulin resistance and elevated blood sugar documented — diabetics risk real harm
- Extreme hunger, water retention, joint pain common
- Unknown cancer-risk interaction with elevated IGF-1 — the reason GH-boosting is medically gate-kept
✚Overdose signs
- Blood-sugar crisis symptoms in predisposed users
- Severe edema
- Lethargy, numbness
Category comparison — Peptides & Research Chemicals
| Substance | Class | Top risks | Street price |
|---|---|---|---|
| MK-677 (Ibutamoren) | Not approved; WADA-prohibited; unscheduled | Sold in the 'longevity' and bodybuilding grey markets 2022+ with zero post-marketing safety data; Insulin resistance and elevated blood sugar documented — diabetics risk real harm | ~$40–80 per bottle grey market |
| BPC-157 | Unscheduled — 'research chemical', not approved for human use anywhere | ZERO human clinical trials — all human use is anecdotal self-experimentation; Unregulated synthesis: purity, sterility, and actual content unverified | ~$20–$60 per 5 mg vial grey-market |
| TB-500 (Thymosin Beta-4 fragment) | Unscheduled — 'research chemical'; banned in sport | No approved human use or trials — same self-experimentation class as BPC-157; Growth/repair factor activity raises theoretical cancer concerns | ~$25–$70 per vial grey-market |
| Melanotan II | Unscheduled | Unapproved — regulators (FDA/TGA/MHRA) have issued warnings and seizures; 'Melanotan rage' — documented mood/aggression changes | ~$20–$50 per 10 mg vial grey-market |
| GHRPs & GH Secretagogues | Unscheduled — 'research chemicals' | All are 'research chemical' grade unless pharmacy-sourced: purity unknown; Water retention, carpal-tunnel symptoms, insulin resistance with chronic use | ~$15–$40 per vial grey-market |
| IGF-1 & MGF analogues | Unscheduled — 'research chemicals'; IGF-1 is Rx | Hypoglycemia — IGF-1 pulls blood sugar down hard; dangerous in diabetics; Theoretical but serious cancer concerns — IGF-1 feeds tumor growth | ~$30–$80 per vial grey-market |
Street prices are regional estimates. Potency and cuts vary constantly.
?Frequently asked questions
What does MK-677 (Ibutamoren) look like?
White powder, capsules, liquid bottles — sold as a 'research chemical' or longevity supplement
What are the signs of a MK-677 (Ibutamoren) overdose?
Blood-sugar crisis symptoms in predisposed users; Severe edema; Lethargy, numbness Call emergency services immediately.
How addictive is it?
Sold in the 'longevity' and bodybuilding grey markets 2022+ with zero post-marketing safety data Dependence can develop with regular use.