Description
Bulk Injectable (LGD-4033 + MK-677 + YK-11)
Disclaimer: All Iron Mountain Labz products are only intended for laboratory research use and are not approved for human consumption.
Overview of Bulk Injectable (LGD-4033 + MK-677 + YK-11)
Bulk Injectable features LGD-4033, MK-677, and YK-11 in one formulation to study multi-pathway effects on muscle tissues in research subjects. This stack targets androgen-receptor signaling, GH/IGF-1 axis modulation, and myostatin-related pathways to create a rationale for synergistic effects in research.
Here’s the composition of each research compound in Iron Mountain Labz Bulk injectable.
| Compound | Amount per mL | Total Amount (10 mL) | Percentage of Total |
| LGD-4033 | 30 mg | 300 mg | 30% |
| MK-677 (Ibutamoren) | 50 mg | 500 mg | 50% |
| YK-11 | 20 mg | 200 mg | 20% |
LGD-4033 (Ligandrol)
SARM LGD 4033 is a selective, non-steroidal anabolic agent. It is claimed to be a research compound that may accelerate the growth and recovery of muscle tissues in research subjects. Ligandrol specifically targets androgen receptors in research models and focuses on skeletal muscles and bones.
| Section | Details |
| CAS Number | 1165910-22-4 ® |
| Molar Mass | 338.3 g/mol |
| Chemical Formula | C14H12F6N2O |
| IUPAC Name | 4-[(2R)-2-[(1R)-2,2,2-trifluoro-1-hydroxyethyl]pyrrolidin-1-yl]-2-(trifluoromethyl)benzonitrile |
| Synonyms | Vk-5211, LGD-4033, 1EJT54415A, Vk5211, LGD4033, SARM LGD 4033, Anabolicum |
| Shelf Life | 24 months |
| Disclaimer | LGD-4033 is not approved for human use. It is legal for research purposes only. |
MK-677 (Ibutamoren)
Ibutamorelin (MK 677) is a non-peptide growth hormone secretagogue. It is studied for its potential to increase the natural production of Growth Hormone (GH) and Insulin-like Growth Factor-1 (IGF-1) in research subjects. It has not been shown to compromise fertility or suppress testosterone in research subjects.
| Section | Details |
| CAS Number | 159634-47-6 |
| Molar Mass | 528.7 g/mol |
| Chemical Formula | C27H36N4O5S |
| IUPAC Name | 2-amino-2-methyl-N-[(2R)-1-(1-methylsulfonylspiro[2H-indole-3,4′-piperidine]-1′-yl)-1-oxo-3-phenylmethoxypropan-2-yl]propanamide |
| Synonyms | Ibutamoren, ibutamoreno, GJ0EGN38UL, L 163191, Nutrobal |
| Shelf Life | 2 years |
| Disclaimer | MK-677 is not approved for human use. It is legal for research purposes only. |
YK-11
YK-11 is classified in research as a myostatin inhibitor that acts as a partial agonist of androgen receptors. This compound is studied for its ability to regulate muscle tissue growth and reduce the effects of myostatin (a protein that naturally limits muscle cell development).
| Section | Details |
| CAS Number | 1370003-76-1 |
| Molar Mass | 430.53 g/mol |
| Chemical Formula | C25H34O6 |
| IUPAC Name | methyl(2E)-2-[(8R,9S,10R,13S,14S,17S)-2′-methoxy-2′,13-dimethyl-3-oxospiro[1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-17,5′-1,3-dioxolane]-4′-ylidene]acetate |
| Synonyms | Z9748J6B0R, UNII-Z9748J6B0R, YK11, GLXC-15167 |
| Shelf Life | 2 years |
| Disclaimer | YK-11 is not approved for human use. It is legal for research purposes only. |
Why buy Bulk Injectable (LGD-4033 + MK-677 + YK-11) from Iron Mountain Labz?
Iron Mountain Labz is a preferred source for Bulk Injectable (LGD-4033 + MK-677 + YK-11), because:
– The Bulk Injectable formulation’s purity is confirmed at 98.8% through HPLC testing.
– LGD-4033, MK-677, and YK-11 assays meet the USP 821 range of 97.0%–103.0%, with results of 98.7%, 98.7%, and 98.8% respectively.
– The endotoxin levels of Bulk Injectable are tested at <0.2 EU/mL, well below the USP <85> limit.
– Bulk Injectable microbial limits testing shows no growth.
– Heavy metals are under 5 ppm.
– Our injectables include a detailed Certificate of Analysis (COA) for research verification.
Note: Researchers can source Bulk Injectable (LGD-4033 + MK-677 + YK-11) from Iron Mountain Labz for accurate administration in research. The SARMs injectable category of Iron Mountain Labz also features Ripped Injectable and RAD-140 Testolone Injectable for sale.
Frequently Asked Questions
What is the legal status of Bulk Injectable?
Bulk Injectable (LGD-4033 + MK-677 + YK-11) is not approved by the FDA for human use. It is only legal for research purposes in the United States.
Does Bulk Injectable (LGD-4033 + MK-677 + YK-11) have side effects in research?
The adverse effects of bulk injectables may include changes in hormone levels and alterations in lipid profiles in research.
How is Bulk Injectable (LGD-4033 + MK-677 + YK-11) administered in research?
Bulk Injectable (LGD-4033 + MK-677 + YK-11) is administered in experimental setups through intramuscular (IM) injection. This method allows for better absorption of the compounds into the bloodstream. Researchers should use sterile syringes and needles and adhere to established dosing protocols.
What safety precautions should researchers take when handling Bulk Injectable (LGD-4033 + MK-677 + YK-11)?
Researchers need to follow strict safety protocols when it comes to using Bulk Injectable. They need to wear nitrile gloves and safety goggles during the research. The compounds included in this bulk injectable should be stored separately in airtight, amber-colored vials at recommended temperatures.
How should Bulk Injectable be stored for research use?
Bulk Injectables should be at 2–8°C, to maintain their stability and prevent them from degradation.
How do I buy Bulk Injectable from Iron Mountain Labz?
You can buy Bulk Injectable from the Iron Mountain Labz website. You are only required to select the product and complete the checkout process to confirm your order.






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The real deal. Great support for muscle growth, recovery, and overall performance enhancement. Basically an essential now.
Anthony Welch –
A top-tier choice if you’d like your subject to grow massive muscles and recover quicker after workouts. Thumbs up from me.
Ali Atkins –
A top choice for muscle growth, strength gains, and enhanced recovery. Shipping is top notch as well
Eddie Mcbride –
Muscle growth is better than ever. Subject likes it a lot
Eddie Mcbride –
Muscle growth is better than ever. Subject likes it a lot
Arron Gordon –
My subject’s muscle gain is through the roof. Highly recommend
Arron Gordon –
My subject’s muscle gain is through the roof. Highly recommend
Caspar Wu –
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Caspar Wu –
Like it a lot!
Chester Walter –
This is a must have!
Chester Walter –
This is a must have!
Santiago Wyatt –
Thumbs up form me!
Santiago Wyatt –
Thumbs up form me!
Leighton Alvarez –
Good quality
Leighton Alvarez –
Good quality
Richard C –
Really helps with my focus, highly recommend.