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YK11 powder is a synthetic selective androgen receptor modulator (SARM) that has gained attention for its potential to significantly enhance muscle growth and strength. It is often compared to anabolic steroids due to its potent effects, but it is classified as a SARM due to its selective action on androgen receptors.

YK11 Powder Chemical Properties

• Chemical Name: 17-alpha,20E-(1’-Methoxyethylidene)-17,20-dihydroxy-3-oxo-19-norpregna-4,20-diene-21-carboxylic Acid Methyl Ester
• Molecular Formula: C25H34O6
• Molecular Weight: 430.541 g/mol
• CAS Number: 431579-34-9

What is YK11

YK11 powder is a synthetic selective androgen receptor modulator (SARM) known for its potent muscle-building properties. It stands out among other SARMs due to its unique ability to inhibit myostatin, a protein that regulates muscle growth. This dual action makes YK11 a powerful compound for enhancing muscle mass and strength.

YK 11 sarm has anabolic activity in vitro in C2C12 myoblasts and shows greater potency than dihydrotestosterone (DHT) in this regard. [https://pubmed.ncbi.nlm.nih.gov/29491216/]

It is a Myostatin inhibitor and is considered one of the strongest SARMs on the market, with potency comparable to some steroids.

Compared to steroids, YK 11 SARMs are selective. This suggests that they choose which androgen receptor to connect to, allowing us to enjoy all the advantages they have when connected to muscle without any of the negative side effects of steroids.

YK-11 myostatin inhibitor is a fantastic ingredient for weight loss, lean muscle mass and especially body recomposition as it is a myogenesis inhibitor (myogenesis inhibitors reduce our muscle mass), which means that you won’t lose muscle when you lose weight, but instead you may gain some muscle. [https://en.wikipedia.org/wiki/YK-11]

YK11 is ideal for stacking with Ligandrol, Ostarine, RAD-140, and MK-677.

YK 11 Powder Certificate of Analysis

YK11 Benefits

• Muscle Growth:
  YK11 is known for its potent muscle-building properties. It promotes significant increases in muscle mass by inhibiting myostatin and activating androgen receptors.
• Strength Gains:
  Users report substantial improvements in strength, allowing for more intense and effective workouts.
• Bone Health:
  YK11 also enhances bone density, contributing to overall skeletal health.
• Fat Loss:
  YK11 indirectly promotes fat loss by increasing muscle mass through an elevated metabolic rate.

YK 11 Side Effects

YK11 SARM is a performance-enhancing substance, while every substance that encourages your body to put on bulk carries some risk. The following are the main side effects of yk-11. [https://www.sciencedirect.com/science/article/abs/pii/S096007602300119X]

1) Joint Pain
In some users, taking YK 11 SARM can cause joint pain due to irregular accumulation of cortisol hormone in the body. Too much cortisol in the body can lead to severe joint pain.

2) Testosterone Suppression
Testosterone suppression can also occur with YK-11, but to a lesser extent. Bodybuilding experts recommend taking a lower dose of Yk 11, as testosterone suppression can lead to low energy, depression and other symptoms, so you will need to undergo a post cycle treatment to eliminate the side effects, Clomid and Novaldex are the best options after performing a 4-week YK11 cycle.

3) High Follistatin Levels
Using YK 11 SARM has been reported to cause your body to produce more Follistatin hormone. This may not seem like a big deal, but it may increase the likelihood of certain cancers.

4) Liver damage
Research suggests that high doses of YK11 may damage the liver.

YK11 Dosage

YK11 is a potent SARM known for its significant muscle-building properties and inhibition of myostatin, a protein that limits muscle growth. Proper dosing is crucial to maximize benefits and minimize potential risks. [YK11 – PubMed (nih.gov)] [YK11 – ScienceDirect]

Typical Dosage Range:

• Dosage: The commonly recommended dosage of YK11 ranges from 5-15 mg per day.
• Administration: Due to its potency, starting at the lower end of the dosage range is advised to assess tolerance and gradually increasing if needed.

Cycle Length:

• Typical Cycle Duration: A standard cycle length for YK11 is 4-8 weeks. Following the cycle, a proper post-cycle therapy (PCT) regimen is necessary to restore natural testosterone production and hormonal balance.

Administration Guidelines

1. Oral Administration:
   • YK11 is typically taken orally in liquid or capsule form.
   • Frequency: It is usually taken once or twice a day, depending on the total daily dosage and the user’s preferences.
2. Monitoring and Adjustments:
   • Regular monitoring of the body’s response is crucial. If any adverse effects are noticed, adjusting the dosage or discontinuing use should be considered.

YK11 Reddit

General Consensus: YK11 is discussed extensively on Reddit, particularly in communities like r/sarmssourcetalk and r/PEDs. Users have shared a range of experiences, highlighting both the benefits and potential downsides of this potent SARM.

Benefits:

• Muscle Growth: Many users report significant muscle gains when using YK11, often comparing it to stronger anabolic steroids. The inhibition of myostatin allows for muscle growth beyond natural limits.
• Strength Gains: Although primarily noted for muscle growth, some users also experience substantial strength improvements.
• Recomposition: When stacked with other SARMs like RAD-140, YK11 can support body recomposition, leading to simultaneous muscle gain and fat loss.

Common Dosages:

• Typical Dosage: The most common dosages range from 5-15 mg per day, often split into two doses (morning and evening) to maintain stable blood levels.
• Cycle Length: Users typically run YK11 cycles for 4-8 weeks, followed by a post-cycle therapy (PCT) to restore natural testosterone production and hormonal balance.

Side Effects:

• Joint Pain: A frequent issue reported is joint pain, attributed to the “dry” nature of YK11. This is particularly noted when YK11 is not stacked with compounds that provide joint support.
• Hormonal Imbalance: Users frequently mention the need for PCT due to YK11’s potential to suppress natural testosterone production.
• Liver Toxicity: There are concerns about liver toxicity, especially with oral administration, prompting some users to opt for injectable forms for potentially reduced liver strain.

Stacking and Synergy:

• With RAD-140: Many users find that stacking YK11 with RAD-140 enhances overall results, particularly in terms of muscle mass and strength gains.
• With LGD-4033: Another popular stack is YK11 with LGD-4033, where users report significant size and strength gains, though with a higher potential for side effects.

Personal Experiences:

• Positive Outcomes: Some users highlight impressive muscle and strength gains, with enhanced vascularity and muscle hardness.
• Negative Outcomes: Other users report significant side effects, including severe joint pain, hormonal imbalances, and occasional liver-related issues.

YK-11 vs RAD 140

1. Both YK11 and RAD 140 had fairly strong inhibitory effects, but the former being stronger than the latter.
2. Half-Life: the half-life of YK-11 is only 12 hours, so you have to take it twice a day to feel its full effect, while RAD 140 has a half-life of 60 hours, so you only need to take it every 2.5 days. [https://sarmguide.com/yk11-vs-rad-140/]
3. Strength: Users on Reddit say I feel stronger and more powerful while taking YK11, and the best part is that I don’t even feel an increase in irritability or aggression.
4. While RAD 140 is known as a “power SARM” in the bodybuilding community, it pales in comparison to YK 11.
5. Muscle Mass: YK11 is superior to RAD 140 in terms of gaining muscle mass because YK-11 is the only Myostatin inhibitor. This means that you won’t lose muscle when you lose weight, but instead may gain some.
6. Testosterone suppression: YK11 is much more testosterone suppressive than RAD 140. I’ve seen many bodybuilders who didn’t need PCT after using RAD 140, but once they introduced YK 11 into their bodies, they had to go on a four-week PCT regimen with Nolvadex. This is because YK11 is too potent to recover from naturally. Testosterone suppression feels like: the first thing you’ll notice is lethargy and lack of libido, followed by mood swings and decreased motivation.
7. Vascularity: Both YK-11 and RAD 140 increase vascularity, but if I had to pick a winner, it would be the RAD140.
8. Aggression: Compared to YK11, RAD 140 can be more irritating and emotional.
9. Joint pain: Joint pain was more pronounced during the use of RAD 140 than during YK 11.
10. Liver Toxicity: YK-11 has methylated groups, which means it contains alcohol, which is harmful to the liver, so you will need to use liver medication while taking YK-11. With RAD 140, you won’t really see an increase in your AST or ALT levels, but you still need to be careful.
11. Price: RAD 140 is cheaper than YK11.

YK11 Sarm for Sale

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