RAD-140 and MK-677 Stack

Our RAD-140 and MK-677 stack includes one discounted 30 mL, 15 mg/mL bottle of RAD-140 and one discounted 30 mL, 25mg/mL bottle of MK-677. Stack the savings! .stl-pdp{ /* —- Brand palette (from STL brand sheet) —- */ –c-logo:#062021; –c-deep:#081c17; –c-forest:#0a3721; –c-green:#0ea43c; –c-lime:#91c72e; –c-grey:#e0e0e0; –c-white:#ffffff; –c-ink:#0d2a22; /* body text on white */ –c-mut:#52635c; /* muted text on white */ –c-line:#e3e9e6; /* hairline on white */ –c-line-d:rgba(255,255,255,.14); /* hairline on dark */ –c-mut-d:#aebfb7; /* muted text on dark */ max-width:1000px;margin:0 auto;color:var(–c-ink); font-family:”Helvetica Neue”,Arial,system-ui,-apple-system,Segoe UI,Roboto,sans-serif; line-height:1.6;-webkit-font-smoothing:antialiased; } .stl-pdp *{box-sizing:border-box} .stl-pdp h2,.stl-pdp h3{letter-spacing:-.02em;line-height:1.15;color:var(–c-logo)} .stl-pdp h2{font-size:clamp(1.5rem,3.4vw,2.1rem);font-weight:800;margin:0 0 .5rem} .stl-pdp h3{font-size:1.18rem;font-weight:800;margin:0 0 .35rem} .stl-pdp p{margin:0 0 1rem} .stl-pdp .eyebrow{display:inline-block;font-size:.74rem;font-weight:800;letter-spacing:.14em; text-transform:uppercase;color:var(–c-green);margin-bottom:.7rem} .stl-pdp .eyebrow–lime{color:var(–c-lime)} .stl-pdp a{color:var(–c-green);text-decoration:underline;text-underline-offset:2px;font-weight:600} .stl-pdp section{padding:46px 4px} .stl-pdp section + section{border-top:1px solid var(–c-line)} /* ———- BUTTONS ———- */ .stl-pdp .stl-btn{display:inline-block;background:var(–c-green);color:#fff;text-decoration:none;font-weight:800; font-size:.95rem;padding:13px 24px;border-radius:11px;transition:transform .15s,background .18s;border:0;cursor:pointer} .stl-pdp .stl-btn:hover{background:#0bbf45;color:#fff;transform:translateY(-1px)} /* ———- HIGHLIGHT CHIPS ———- */ .stl-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px} .stl-chip{background:var(–c-white);border:1px solid var(–c-line);border-radius:14px;padding:20px 18px} .stl-chip svg{width:26px;height:26px;color:var(–c-green);margin-bottom:10px} .stl-chip b{display:block;color:var(–c-logo);font-size:.98rem;margin-bottom:3px} .stl-chip span{font-size:.86rem;color:var(–c-mut)} /* ———- SPEC CARD (tabbed) — light treatment ———- */ .stl-spec{background:#fff;border:1px solid var(–c-line);border-radius:18px;overflow:hidden;color:var(–c-ink); box-shadow:0 1px 2px rgba(6,32,33,.04),0 14px 40px rgba(10,55,33,.08)} .stl-spec__tabs{display:flex;gap:4px;background:#f1f6f3;padding:7px;flex-wrap:wrap;border-bottom:1px solid var(–c-line)} .stl-spec__tab{appearance:none;border:0;background:transparent;cursor:pointer;font:inherit;font-weight:700; font-size:.92rem;color:var(–c-mut);padding:11px 18px;border-radius:10px;transition:background .18s,color .18s; flex:1 1 auto;min-width:120px;text-align:center} .stl-spec__tab:hover{color:var(–c-logo)} .stl-spec__tab[aria-selected=”true”]{background:var(–c-forest);color:#fff;box-shadow:0 3px 12px rgba(10,55,33,.28)} .stl-spec__tab:focus-visible{outline:3px solid var(–c-green);outline-offset:2px} .stl-spec__panel{padding:28px clamp(20px,3vw,34px) 34px} .stl-spec__panel[hidden]{display:none} .stl-spec__table{width:100%;border-collapse:collapse;font-size:.95rem} .stl-spec__table + .stl-spec__table{margin-top:30px} .stl-spec__table caption{text-align:left;font-weight:800;color:var(–c-logo);font-size:1.06rem;padding-bottom:16px} .stl-spec__table th,.stl-spec__table td{text-align:left;padding:13px 4px;border-bottom:1px solid var(–c-line);vertical-align:top} .stl-spec__table tr:last-child th,.stl-spec__table tr:last-child td{border-bottom:0} .stl-spec__table th{width:38%;font-weight:700;color:var(–c-ink)} .stl-spec__table td{color:var(–c-mut)} .stl-spec__table tbody tr:hover{background:#f6faf8} .stl-spec__table sub{font-size:.72em} .stl-copy{display:inline-flex;align-items:center;gap:8px;flex-wrap:wrap} .stl-copy__btn{appearance:none;border:1px solid var(–c-line);background:#fff;border-radius:7px; cursor:pointer;font:inherit;font-size:.74rem;font-weight:700;color:var(–c-green);padding:3px 9px;transition:background .15s,border-color .15s} .stl-copy__btn:hover{background:#f1f6f3;border-color:var(–c-green)} .stl-copy__btn:focus-visible{outline:2px solid var(–c-green);outline-offset:1px} .stl-copy__btn[data-copied=”1″]{color:#fff;background:var(–c-green);border-color:var(–c-green)} .stl-trust{display:grid;gap:13px} .stl-trust__row{display:flex;gap:13px;align-items:flex-start;padding:15px 17px;background:#f4f8f5;border-radius:12px} .stl-trust__ic{flex:0 0 auto;width:22px;height:22px;color:var(–c-green);margin-top:1px} .stl-trust__row b{color:var(–c-logo)} .stl-trust__row p{margin:4px 0 0;font-size:.9rem;color:var(–c-mut)} .stl-pill{display:inline-block;background:var(–c-lime);color:#062021;font-size:.76rem;font-weight:800;padding:3px 11px;border-radius:999px;margin-left:8px;vertical-align:middle} .stl-spec h3{color:var(–c-logo)} .stl-spec .stl-sub{color:var(–c-mut);font-size:.92rem;margin:0 0 18px} .stl-list{list-style:none;margin:0;padding:0;display:grid;gap:12px} .stl-list li{display:flex;gap:12px;align-items:flex-start;font-size:.94rem;color:var(–c-ink)} .stl-list li b{color:var(–c-logo)} .stl-list svg{flex:0 0 auto;width:18px;height:18px;color:var(–c-green);margin-top:3px} .stl-spec a.stl-btn{margin-top:20px} /* ———- COA IMAGE ———- */ .stl-coa{margin:6px 0 24px} .stl-coa img{display:block;width:100%;height:auto;border:1px solid var(–c-line);border-radius:12px;background:#fff} .stl-coa figcaption{font-size:.84rem;color:var(–c-mut);margin-top:8px} .stl-coa-head{display:flex;align-items:center;flex-wrap:wrap;margin:26px 0 10px} .stl-coa-head h3{margin:0} /* ———- QUALITY / EEAT ———- */ .stl-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0 6px} .stl-stat{background:var(–c-deep);color:#fff;border-radius:14px;padding:20px 18px;text-align:left} .stl-stat b{display:block;font-size:1.7rem;font-weight:800;color:var(–c-lime);line-height:1} .stl-stat span{display:block;font-size:.82rem;color:var(–c-mut-d);margin-top:7px} .stl-feat{display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;margin-top:8px} .stl-feat div{display:flex;gap:11px;align-items:flex-start} .stl-feat svg{flex:0 0 auto;width:19px;height:19px;color:var(–c-green);margin-top:3px} .stl-feat b{color:var(–c-logo)} .stl-feat p{margin:2px 0 0;font-size:.9rem;color:var(–c-mut)} /* ———- COMPONENT (STACK) CARDS ———- */ .stl-comp{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:8px} .stl-comp__card{background:#fff;border:1px solid var(–c-line);border-radius:16px;padding:24px 22px} .stl-comp__card .eyebrow{margin-bottom:.4rem} .stl-comp__card h3{margin:0 0 .5rem} /* ———- REGULATORY BAND ———- */ .stl-reg{background:var(–c-deep);color:#fff;border-radius:18px;padding:clamp(26px,4vw,40px)} .stl-reg h2{color:#fff} .stl-reg .eyebrow{color:var(–c-lime)} .stl-reg__grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px} .stl-reg__card{background:rgba(255,255,255,.05);border:1px solid var(–c-line-d);border-radius:12px;padding:18px 20px} .stl-reg__card b{color:var(–c-lime);display:block;margin-bottom:5px;font-size:.95rem} .stl-reg__card p{margin:0;font-size:.9rem;color:var(–c-grey)} /* ———- REFERENCES ———- */ .stl-refs{font-size:.84rem;color:var(–c-mut);counter-reset:r;list-style:none;padding:0;margin:0;display:grid;gap:9px} .stl-refs li{padding-left:30px;position:relative} .stl-refs li::before{counter-increment:r;content:counter(r);position:absolute;left:0;top:0; width:21px;height:21px;background:var(–c-forest);color:var(–c-lime);border-radius:6px; font-size:.72rem;font-weight:800;display:flex;align-items:center;justify-content:center} /* ———- DISCLAIMER ———- */ .stl-note{margin-top:8px;padding:16px 18px;border-left:4px solid var(–c-green);background:#f2f7f4; border-radius:0 10px 10px 0;font-size:.85rem;color:var(–c-mut)} .stl-note b{color:var(–c-logo)} /* ———- NO-JS FALLBACK ———- */ .stl-pdp–nojs .stl-spec__tabs{display:none} .stl-pdp–nojs .stl-spec__panel[hidden]{display:block} .stl-pdp–nojs .stl-spec__panel + .stl-spec__panel{border-top:1px solid var(–c-line)} @media (max-width:760px){ .stl-grid4{grid-template-columns:1fr 1fr} .stl-stats{grid-template-columns:1fr 1fr} .stl-feat,.stl-reg__grid,.stl-comp{grid-template-columns:1fr} .stl-spec__table th{width:46%} } @media (max-width:440px){.stl-grid4{grid-template-columns:1fr}} @media (prefers-reduced-motion:reduce){.stl-pdp *{transition:none!important}} /* ———- READABILITY ———- */ .stl-pdp{font-size:16px} .stl-pdp p,.stl-pdp li,.stl-pdp td,.stl-pdp th,.stl-pdp .stl-spec__table{font-size:16px;line-height:1.65} .stl-pdp .stl-chip span,.stl-pdp .stl-sub,.stl-pdp .stl-stat span,.stl-pdp .stl-feat p,.stl-pdp .stl-reg__card p,.stl-pdp .stl-trust__row p,.stl-pdp .stl-refs li,.stl-pdp .stl-note,.stl-pdp .stl-copy__btn,.stl-pdp .stl-btn,.stl-pdp .stl-spec__tab{font-size:16px} .stl-pdp h3{font-size:1.4rem} .stl-pdp h2{font-size:clamp(2rem,3vw,2.5rem)} /* ———- FONT FLOOR: nothing below 14px, desktop + mobile ———- */ .stl-pdp .eyebrow,.stl-pdp .eyebrow–lime{font-size:14px} .stl-pdp .stl-pill{font-size:14px} .stl-pdp .stl-coa figcaption{font-size:14px} .stl-pdp .stl-refs li::before{font-size:14px} .stl-pdp .stl-spec__table sub{font-size:14px} .stl-pdp .stl-spec__table caption{font-size:18px} Why this bundle Key highlights Two-bottle research bundleOne 30 mL bottle each of RAD-140 and MK-677, supplied together at a bundle discount. 15 & 25 mg/mLRAD-140 at 15 mg/mL (450 mg) and MK-677 at 25 mg/mL (750 mg), each with under 5% variance. Independently verifiedEach compound is HPLC-tested by an accredited US third-party lab for purity and identity. Research use onlySupplied exclusively for laboratory investigation and development. Technical data Product specifications Specifications Lab Reports Storage & Handling Liquid Testolone (RAD-140) — 15 mg/mL Compound Class Selective Androgen Receptor Modulator (SARM) · Non-steroidal Concentration 15 mg/mL Composition USP-grade PEG-400 base, RAD-140 (≥97% purity) CAS Number 1182367-47-0Copy Chemical Formula C20H16ClN5O2Copy Molar Mass 393.83 g/mol Half-Life ~44.7 hours Synonyms RAD-140, Testolone, RAD140 Volume 30 mL per bottle (450 mg total) Verified Purity Batch-tested to 97.5% (HPLC) Liquid Ibutamoren (MK-677) — 25 mg/mL Compound Class Growth Hormone Secretagogue · Ghrelin Receptor (GHSR-1a) Agonist · Non-steroidal Concentration 25 mg/mL Composition USP-grade PEG-400 base, MK-677 (≥98% purity) CAS Number 159752-10-0Copy Chemical Formula C27H36N4O5SCopy Molar Mass 528.66 g/mol Half-Life ~24 hours Synonyms Ibutamoren, MK-677, Nutrobal, MK-0677, L-163,191 Volume 30 mL per bottle (750 mg total) Verified Purity Batch-tested to 99.92% (HPLC) For laboratory research use only. Not for human or animal consumption. View certificates of analysis Independently verified Each compound in this bundle is analyzed by an accredited US third-party laboratory before it ships. Accredited testing partner Purity and identity confirmed by MZ Biolabs (Tucson, AZ), a US DEA-licensed analytical facility, via HPLC purity analysis and mass-spectrometry identity confirmation under GLP standards. Published certificates of analysis Our third-party certificates of analysis are published on our website — no login required. RAD-140 (Testolone)97.5% pure Most recent batch certificate of analysis for RAD-140 (Testolone), issued by MZ Biolabs (Tucson, AZ). Tap to view full size. MK-677 (Ibutamoren)99.92% pure Most recent batch certificate of analysis for MK-677, issued by MZ Biolabs (Tucson, AZ). Tap to view full size. See all certificates of analysis Storage & handling Both bottles are built to preserve compound integrity throughout your research timeline. Storage: Keep in a cool, dry place away from direct sunlight to maximize shelf life. UV-resistant glass bottles with fixed glass droppers to minimize degradation and avoid plasticizer (BPA) leaching. Tamper-proof seals to ensure integrity in transit. Graduated 1 mL glass pipette included with each bottle for precise measurement. Evaporation-resistant formulation and packaging for stable storage. Sourcing & quality Why source this stack from Sports Technology Labs Quality control across the research-compound industry is inconsistent, which makes third-party verification essential. A 2017 analysis published in JAMA examined 44 products marketed online as SARMs and reported wide gaps between labels and contents. 52%contained the labeled compound 39%contained an unapproved drug 25%contained an unlabeled substance 9%contained no active ingredient Source: Van Wagoner et al., JAMA, 2017 (ref. 3). Third-party tested & certified Both compounds verified by MZ Biolabs (Tucson, AZ), an accredited US laboratory, via HPLC and mass spectrometry. USP-grade PEG-400 Suspended in the highest grade carrier and bottled in America. Glass bottles, fixed glass droppers Prevents BPA leaching and avoids contamination from external tools. 60-day money-back guarantee Transparent business, standard payment methods, no misrepresentation. Research context What is in this stack? Component 1 RAD-140 (Testolone) A non-steroidal selective androgen receptor modulator (SARM). Mechanistically, it binds the androgen receptor with high affinity and tissue selectivity, distinguishing it from steroidal androgens. It was developed as an investigational compound by Radius Health, Inc. (ref. 1). Component 2 MK-677 (Ibutamoren) A non-peptide ghrelin receptor (GHSR-1a) agonist and growth hormone secretagogue. Mechanistically, it binds and activates the GHSR-1a receptor — the same receptor targeted by the endogenous peptide ghrelin. It is orally bioavailable in study models and has been an investigational compound since the 1990s. It is not a SARM (ref. 2). Both compounds remain experimental research chemicals, supplied strictly for laboratory research. Sports Technology Labs makes no claims regarding their effects, and nothing in this listing should be interpreted as describing outcomes in humans or animals. Regulatory & compliance status Important regulatory information Not approved for human use RAD-140 and MK-677 are investigational compounds. They are not approved by the FDA and are not dietary supplements, drugs, or food. Marketing them for human ingestion is unlawful. WADA-prohibited Both are prohibited by the World Anti-Doping Agency: RAD-140 under S1 (Anabolic Agents — SARMs) and MK-677 under S2 (Peptide Hormones, Growth Factors, Related Substances and Mimetics), banned in- and out-of-competition (ref. 4). Legal status for research In the United States, neither is a controlled substance and both may be legally purchased and possessed for laboratory research use. Our position Sports Technology Labs are chemical suppliers, not medical providers. We do not condone or encourage consumer use of research compounds. Citations Scientific references Miller CP, et al. Design, synthesis, and preclinical characterization of the selective androgen receptor modulator (SARM) RAD140. ACS Med Chem Lett. 2011;2(2):124–129. Patchett AA, et al. Design and biological activities of L-163,191 (MK-0677): a potent, orally active growth hormone secretagogue. Proc Natl Acad Sci USA. 1995;92(15):7001–7005. Van Wagoner RM, et al. Chemical composition and labeling of substances marketed as SARMs and sold via the internet. JAMA. 2017;318(20):2004–2010. WADA Prohibited List (2025), Sections S1 (Anabolic Agents — SARMs) and S2 (Peptide Hormones, Growth Factors, Related Substances and Mimetics). WADA.org. Research use only. All products on this website are intended exclusively for laboratory research and development. They are not for human or animal consumption. These statements have not been evaluated by the U.S. Food and Drug Administration, and these products are not intended to diagnose, treat, cure, or prevent any disease. {“@context”:”https://schema.org”,”@type”:”ChemicalSubstance”,”name”:”Testolone (RAD-140)”,”alternateName”:[“RAD-140″,”Testolone”,”RAD140″],”identifier”:[{“@type”:”PropertyValue”,”propertyID”:”CAS”,”value”:”1182367-47-0″}],”molecularFormula”:”C20H16ClN5O2″,”molecularWeight”:”393.83 g/mol”,”description”:”Liquid Testolone (RAD-140), 15 mg/mL, a non-steroidal selective androgen receptor modulator (SARM) supplied for laboratory research use only. Third-party tested to 97.5% purity.”,”hasBioChemEntityPart”:”Selective Androgen Receptor Modulator (SARM)”} {“@context”:”https://schema.org”,”@type”:”ChemicalSubstance”,”name”:”Ibutamoren (MK-677)”,”alternateName”:[“MK-677″,”Ibutamoren”,”Nutrobal”,”MK-0677″,”L-163,191″],”identifier”:[{“@type”:”PropertyValue”,”propertyID”:”CAS”,”value”:”159752-10-0″}],”molecularFormula”:”C27H36N4O5S”,”molecularWeight”:”528.66 g/mol”,”description”:”Liquid Ibutamoren (MK-677), 25 mg/mL, a growth hormone secretagogue and ghrelin receptor (GHSR-1a) agonist supplied for laboratory research use only. Third-party tested to 99.92% purity.”,”hasBioChemEntityPart”:”Growth Hormone Secretagogue; Ghrelin Receptor (GHSR-1a) Agonist”} (function(){ var root=document.currentScript&&document.currentScript.closest(‘[data-stl-spec]’); if(!root){var all=document.querySelectorAll(‘[data-stl-spec]’);root=all[all.length-1];} if(!root||root.dataset.stlInit)return;root.dataset.stlInit=’1′; root.classList.remove(‘stl-pdp–nojs’); var tabs=[].slice.call(root.querySelectorAll(‘[role=”tab”]’)); var panels=tabs.map(function(t){return root.querySelector(‘#’+t.getAttribute(‘aria-controls’));}); function select(i){tabs.forEach(function(t,j){var on=j===i;t.setAttribute(‘aria-selected’,on?’true’:’false’);t.tabIndex=on?0:-1;if(panels[j])panels[j].hidden=!on;});} tabs.forEach(function(t,i){ t.addEventListener(‘click’,function(){select(i);}); t.addEventListener(‘keydown’,function(e){var n; if(e.key===’ArrowRight’||e.key===’ArrowDown’)n=(i+1)%tabs.length; else if(e.key===’ArrowLeft’||e.key===’ArrowUp’)n=(i-1+tabs.length)%tabs.length; else if(e.key===’Home’)n=0;else if(e.key===’End’)n=tabs.length-1;else return; e.preventDefault();select(n);tabs[n].focus();}); }); root.querySelectorAll(‘[data-stl-copy]’).forEach(function(btn){ btn.addEventListener(‘click’,function(){var v=btn.getAttribute(‘data-stl-copy’); var done=function(){btn.dataset.copied=’1′;var o=btn.textContent;btn.textContent=’Copied’;setTimeout(function(){btn.dataset.copied=”;btn.textContent=o;},1400);}; if(navigator.clipboard&&navigator.clipboard.writeText){navigator.clipboard.writeText(v).then(done).catch(done);} else{var ta=document.createElement(‘textarea’);ta.value=v;document.body.appendChild(ta);ta.select();try{document.execCommand(‘copy’);}catch(e){}document.body.removeChild(ta);done();} }); }); })(); (function(){var s=document.querySelectorAll(‘[data-stl-spec]’);var el=s[s.length-1];if(el&&!el.dataset.stlInit)el.classList.add(‘stl-pdp–nojs’);})(); Why is Sports Technology Labs the best place to buy SARMs 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 significantly 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 looking for SARMs stacks for sale, 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 excellent 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) PEG-400, bottled in America. Our products come in glass bottles with fixed glass droppers to prevent the leaching of unwanted plasticizers like BPA, and to avoid contamination when using 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 provide free shipping for orders exceeding $149, and for those who require expedited delivery, we also offer express shipping. Customers who subscribe to our email list enjoy a 10% discount and an extra 10% off when paying with cryptocurrency. At Sports Technology Labs, you can find SARMs for sale, including the highest quality RAD-140 and MK-677.  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.