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LGD-4033 and MK-677 Stack


Original price was: $124.99.Current price is: $114.99.

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

Buy LGD-4033 and MK-677 Stacks with a 98% Purity or Higher

Our LGD-4033 and MK-677 Stack includes one discounted 30ml 10mg/ml bottle of LGD-4033 and one discounted 30ml 25mg/ml bottle of MK-677. Stack the savings!

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.

Data on our Liquid MK-677 for sale

CAS Number: 159752-10-0

Formula: C27H36N4O5S

Molar Mass: 528.662 g/mol

Half life: 24 hours

Class: Ghrelin Agonist, Growth Hormone releasing agent

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. LGD 4033 / LIGANDROL AND MK677 / IBUTAMOREN ARE NOT DIETARY OR SPORTS SUPPLEMENTS.

Why is Sports Technology Labs the best place to buy SARM 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, 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 LGD4033 and MK677 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 MK-677 Stack

LGD-4033, also known as ligandrol, is considered one of the most tissue-selective SARMs available. This means that it has a high affinity for androgen receptors (ARs) in muscle tissue and a relatively low affinity for ARs in other tissues, such as the prostate gland and breast tissue. This selectivity helps to minimize the risk of side effects associated with non-selective androgenic compounds.

MK-677, also known as ibutamoren, binds to the ghrelin receptor in the hypothalamus, which is a region of the brain that controls growth hormone (GH) release. By binding to this receptor, MK-677 mimics the effects of ghrelin, a hormone that stimulates GH release. This leads to increased GH levels.

Some of the known SARMs include enobosarm (Ostarine MK-2866 or S-22), andarine (S4), ligandrol (LGD-4033), and testolone (RAD-140). The liver injury in the case of SARMs is thought to be idiosyncratic, extrapolating a similar mechanism with androgenic steroids.

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. National Center for Biotechnology Information. (2023). PubChem Compound for Ibutamoren. Retrieved November 01, 2023, from

4. Barbara, M., Dhingra, S., & Mindikoglu, A. L. (2020). Ligandrol (LGD-4033)-induced liver injury. ACG case reports journal7(6).