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LGD-4033 and YK-11 Stack


Original price was: $119.99.Current price is: $109.99.

Selling fast! Get yours today! Same-day shipping available

Buy a LGD-4033 and YK-11 Stack with a Minimum of 98% Purity

Our LGD-4033 and YK-11 Stack includes one discounted 30ml 10mg/ml bottle of LGD-4033 and one discounted 30ml 10mg/ml bottle of YK-11. Save $10 when you buy YK11 and LGD-4033 in this discounted bundle.

Data on our YK-11 for sale

CAS Number: 1370003-76-1

Formula: C25H34O6

Molar Mass: 430.541 g/mol

Class: Myostatin Inhibitor, Selective Androgen Receptor Modulator

Storage: Store in a cool dry place away from direct sunlight to maximize shelf life.

Data on our Liquid LGD-4033 for sale

CAS Number: 1165910-22-4

Formula: C14H12F6N2O

Molar Mass: 338.258 g/mol

Half life: 24 – 36 hours

Class: Selective Androgen Receptor Modulator

Storage: Store in a cool dry place away from direct sunlight to maximize shelf life.

  • Each bottle includes a graduated 1mL glass pipette for convenient measurement.
  • Glass bottles with UV resistance to minimize degradation.
  • Tamper-proof seals to ensure safety in transit.
  • Less than 5% variance in concentration, guaranteeing consistency.
  • Formulated and packaged to prevent evaporation in storage.

This preparation is for laboratory research purposes only and is not approved by the FDA for human use. YK-11 AND LIGANDROL / LGD4033 ARE NOT DIETARY OR SPORTS SUPPLEMENTS.

Why is Sports Technology Labs the best place to buy LGD-4033 and YK-11 SARMs Stacks online?

A recent study involving chemical analyses of 44 different products sold and marketed as Selective Androgen Receptor Modulators on the internet revealed that quality control in this industry varies greatly from one company to the next.

Only 52% of the products tested contained the product advertised, 59% contained amounts that differed from the label, a shocking 39% contained other unapproved drugs, 25% contained substances not listed on the label, and 9% contained no active substance at all. It is critical when performing research with SARMs to only purchase the highest quality, verified by third party analysis.

If you are trying to figure out where to buy SARMs stacks online, there appears to be no shortage of options out there. Sports Technology Labs is the best place to buy SARMs online because of their consistent, verifiable high quality products, safe bottling and packaging, fast shipping, and great customer service.

When you buy SARMs from Sports Technology Labs you are choosing the highest quality ingredients. Minimum 98% pure compounds tested and certified by accredited American third party labs, suspended in USP grade (the highest grade) PEG400, bottled in America.

Our products come in glass bottles with fixed glass droppers to prevent the leaching of unwanted plasticizers like BPA, and prevent contamination between testing with external measuring tools. 

We run a transparent business, with no discreet payment methods necessary and no misrepresentation of our products, only the highest quality research chemicals available online, secured by our 60-day money-back guarantee. 

We offer free shipping on orders over $149 and if you need the products in a hurry we offer express shipping as well. Customers that sign up for our email list get 10% off, and an additional 10% off for payment with cryptocurrency.

At Sports Technology Labs you can find SARMs for sale, including the highest quality Ligandrol and YK11 for sale anywhere on the internet. That’s why we are confident in our claim that we offer the best SARMs for sale on the market today. 

And if you have any questions about our  products, you can also contact us and we’ll respond as soon as possible.

Abuse Warning

Selective Androgen Receptor Modulators are investigational compounds still awaiting FDA approval and are not dietary supplements. At Sports Technology Labs we are chemical suppliers, not medical doctors, and our expertise is sourcing and quality control. 

Sports Technology Labs does not encourage or condone consumer use of SARMs products, they are for research purposes only. Anecdotal reports and guides may not match those used in carefully designed medical research protocols and may pose a serious risk of adverse effects in users.

Individual variables, comorbidities, and polypharmacy can also contribute significantly to the risk of health problems.

Selective Androgen Receptor Modulators should only be used under the supervision and direction of a medical doctor or designated research authority. We strongly discourage the use of SARMs for performance enhancement in sports and bodybuilding, and warn against “bro science” and peer consensus when making decisions about health.

FAQ For LGD-4033 and YK-11 Stack

LGD-4033, also known as Ligandrol, is a selective androgen receptor modulator (SARM) that binds to androgen receptors (ARs) in muscle tissue. LGD-4033 is considered one of the most potent SARMs available.

YK-11, also known as 11-ketotestosterone, is a non-steroidal selective androgen receptor modulator (SARM) with a unique structure that allows it to bind to both androgen receptors (ARs) and myostatin receptors. By binding to ARs, YK-11 promotes muscle growth and strength. By binding to myostatin receptors, YK-11 inhibits myostatin, a protein that limits muscle growth.

[(17α,20E)-17,20-[(1-methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene-21-carboxylic acid methyl ester], widely known under the name of YK11 is a synthetic agent with anabolic properties which belongs to the selective androgen receptor modulators group (SARMs).

Scientific Research References:

1. Van Wagoner RM, Eichner A, Bhasin S, Deuster PA, Eichner D. Chemical Composition and Labeling of Substances Marketed as Selective Androgen Receptor Modulators and Sold via the Internet. JAMA. 2017 Nov 28;318(20):2004-2010. doi: 10.1001/jama.2017.17069. Erratum in: JAMA. 2018 Feb 20;319(7):724. PMID: 29183075; PMCID: PMC5820696.

2. PubChem. (2023). Ligandrol. Retrieved November 16, 2023, from

3. Dahleh, M. M. M., Bortolotto, V. C., Guerra, G. P., Boeira, S. P., & Prigol, M. (2023). YK11 induces oxidative stress and mitochondrial dysfunction in hippocampus: The interplay between a selective androgen receptor modulator (SARM) and exercise. The Journal of Steroid Biochemistry and Molecular Biology233, 106364.

4. Yatsu, T., Kusakabe, T., Kato, K., Inouye, Y., Nemoto, K., & Kanno, Y. (2018). Selective androgen receptor modulator, yk11, up-regulates osteoblastic proliferation and differentiation in mc3t3-e1 cells. Biological and Pharmaceutical Bulletin41(3), 394-398.