SKU: 91303385050

YK-11 Powder, 1gr

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Description

YK-11 Powder, 1grYK 11 YK 11, also known as myostine, is a Selective Androgen Receptor Modulator (SARM) clinically proven to partially activate the androgen receptor while also acting as a myostatin inhibitor. A compelling study led by researchers Lee et al. investigated YK 11 as a potential muscle building and muscle preserving compound under conditions of sepsis. In the experiment, mice were fed two different doses of YK 11 (orally administered at 350 mg kg and 700

YK-11

YK-11, also known as myostine, is a Selective Androgen Receptor Modulator (SARM) clinically proven to partially activate the androgen receptor while also acting as a myostatin inhibitor.

A compelling study led by researchers Lee et al. investigated YK-11 as a potential muscle-building and muscle-preserving compound under conditions of sepsis. In the experiment, mice were fed two different doses of YK-11 (orally administered at 350 mg/kg and 700 mg/kg) for ten days. The researchers then examined how these mice responded to a peritoneal injection of E. coli bacteria.

The study demonstrated that YK-11 inhibited the activity of myostatin, a hormone that limits muscle growth in mammals (source). Not only did the mice treated with YK-11 maintain their body mass during the disease phase, but they also had a more favorable fat-to-muscle ratio, indicating less fat and more lean tissue compared to the control group.

Furthermore, the results showed that the treated mice were able to recover lost muscle mass in the back and thighs following exposure to systemic E. coli. Their muscle cells also demonstrated increased resistance to atrophy when compared to those of the control group.

In addition to its impact on muscle mass, YK-11 also affected the immune response to gram-negative bacteria. The treatment with YK-11 led to reduced negative effects of bacterial infections, including a decrease in endotoxins and inflammatory markers in the lungs.

Moreover, there was a significant reduction in biomarkers indicating organ damage, including liver and kidney markers such as AST, ALT, and BUN. The use of YK-11 also appeared to enhance the removal of harmful bacteria from the mice's organs (source).

Lastly, it's worth noting that the study also examined the survival rate during sepsis, and mice treated with YK-11 had a higher likelihood of surviving up to the 72-hour mark. These treated mice showed little to no evidence of bacterial colonization in their vital organs.

Half Life
6 – 10 hours.

DISCLAIMER
This material is sold for use in laboratory research only. Terms of sale apply. Not for human consumption, nor for medical, veterinary or domestic use. Please familiarize yourself with our DISCLAIMER before ordering.

Data Sheet

YK11 – Powder, 1gr

Application Selective Androgen Receptor Modulator, Myostatin Inhibitor
CAS 1370003-76-1
Molar Mass 430.534 g/mol
Chemical Formula C25H34O6
IUPAC Name methyl 2-{5-methoxy-5,15′-dimethyl-5′-oxospiro[1,4-dioxolane-2,14′-tetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan]-6′-en-3-ylidene}acetate
Synonyms YK11, YK-11, Myostine
Storage Room temperature
Solubility Soluble in Ethanol, PEG400
Organoleptic Profile White fine powder
Physical Form Solid
Specification ≥98%
Terms This material is sold for laboratory research use only. Terms of sale apply. Not for human consumption, nor medical, veterinary, or household uses. Please familiarize yourself with our Terms & Conditions prior to ordering.
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SKU: 91303385050

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4.7 ★★★★★
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Charl8
Louisville, US
★★★★★ 5
Great cushioning, easy storage
Color: Blue
I am so happy I bought this. I do back stretches, and need to be on the floor.. Getting up & down is hard at 77, and carpets are hard. This helps sooo much! I don’t hurt my knees when getting down or getting up. The mat is comfortable and provides plenty of padding. It is easy to roll up and store with the included strap. I am tall, and there is extra length, so my head and feet are on the mat. This was a good purchase! This has not torn, and wipes down easily. It doesn’t attract dog hair, which is another reason I wanted a mat.
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Reviewed in the United States on March 21, 2026
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Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Thick & sturdy.
Color: Blue
Great mat! Nice thick, sturdy foam! -- Im using it along my raised garden beds so I can crawl across the area that's covered w wood chips to work. I cover up lumber edges w old staples with one edge too, and can push myself up & slide it along beneath me. Great on my knees and elbows. Eliminates the need to constantly get up & down. Nice thick, sturdy foam! Gets slippery fast if I hit it w the hose!
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Reviewed in the United States on May 24, 2026
K
Verified Purchase
Kelly B. - Honest Hands-On
New York, US
★★★★★ 5
Durable and Comfortable Yoga Mat That Lasts
Color: Red
The BalanceFrom Go Yoga All Purpose Exercise Mat has proven to be a long-lasting and reliable piece of equipment. After seven years of use, it still holds up well, showing how durable the anti-tear material really is. The thickness provides great cushioning for yoga, stretching, or floor workouts, making it comfortable to use on hard surfaces without slipping. The included carrying strap makes it easy to transport to classes or the gym, and the lightweight design is convenient without sacrificing support. Even after years of use, the mat remains easy to clean and hasn’t worn down the way cheaper mats often do. While the surface may show some signs of age, the overall performance has stayed strong, which makes it an excellent value for the price. Pros: Extremely durable even after years, comfortable cushioning, and convenient with a carry strap included. Cons: The surface can show wear over time, it may feel bulky compared to thinner mats, and the texture may not suit those who prefer a firmer grip. A dependable yoga mat that lasts for years while staying comfortable and practical. For anyone looking for a durable, affordable mat, this one delivers excellent long-term value.
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Reviewed in the United States on August 30, 2025
M
Verified Purchase
Marissa
Cuba, US
★★★★★ 4
From a Non-Yoga enthusiast
Color: Purple
The first time I bought a Yoga mat, I plucked it out of the bin from either Ross or TJ Maxx. Then, I decided it wasn't for me and I sold the mat. So, I wouldn't know how to pick a good mat if I fell over it. I came here and purchased this one from the reviews. Again, I'm not a die-hard Yoga-er? Yogi? So I'm probably not giving it the "workout" it needs, but here's a few things I noticed. When I unrolled it, it was nice and tight from it's position. I had to lay it out, then lay on it to get it flat and ready to use. My dog was amused by this, but I'm not sure it counts as a position. It does dent. I've seen where others tear, but so far, mine hasn't yet. But dents? Yes. I can see this as more of a "when" rather than "if." The foam is soft-- it's bound to happen at some point. No noise noted. No squeaking or shifting, or "fart" noises. You can go about your routine in peace. I did notice a smell on my hands after. At first, I wasn't sure what it was, but it was latex-esque or plastic like. I didn't notice this during, but I did smell it after. To me, it's squishy and comfortable. Like I said , I briefly used it as a make-shift cot prior to it's official use, and I thought it was fine. Didn't move, and for what it is, I thought it was pretty thick. I Love the strap, I love the color, it'll do for now. Until it falls apart, I'm happy with it.
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Reviewed in the United States on September 1, 2019
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Verified Purchase
Love inflatable pools
Fort Morgan, US
★★★★★ 5
Squishiest impact absorbing mat I've seen
Color: Red
The size is smallish, and well advertized at 24" X 71", however the quality and padding is there, and at the price point I know it's a winner. It absorbs pressure and rebounds swiftly. It has a matt texture that is a bit grippy, which I prefer. I've paid a lot more for mats that didn't have this shock absorbing performance. I'm excited to own it.
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Reviewed in the United States on May 10, 2026

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