YK11 CAS.431579-34-9

YK11 CAS.431579-34-9

In the presence of YK11, the induction of key muscle formation regulator (MRF), such as myogenic differentiation factor (MyoD), myoflavin 5 (myf5) and myoblastin), is more significant in the presence of DHT. YK11 treatment of C2C12 cells, but not DHT, induced follistatin (Fst) expression, YK11-mediated myastotic differentiation was anti-Fst antibody reversed.

Product Details

Weight loss YK11/ YK-11 the strongest SARMs

Foshan Xinhang Biological Technology Co., Ltd.

Whatsapp:+8617725670492, email:liuxf@yccreate.com.

Key words:YK11/ YK-11/AR (androgen receptor)

1.Product Introduction

Welcome to contact Morgan for more details.Whatsapp:+8617725670492, email:liuxf@yccreate.com.

YK11 is a selective androgen receptor modulator (SARM) that activates AR in the absence of an N / C interaction. In this study, we further studied the mechanism of YK11-induced C2i12 cell myogenic differentiation.

In the presence of YK11, the induction of key muscle formation regulator (MRF), such as myogenic differentiation factor (MyoD), myoflavin 5 (myf5) and myoblastin), is more significant in the presence of DHT. YK11 treatment of C2C12 cells, but not DHT, induced follistatin (Fst) expression, YK11-mediated myastotic differentiation was anti-Fst antibody reversed.

In the absence of DHT negative, YK11 will have a similar effect (possibly more effective) on DHT. This means that the product is most likely to be suppressed, requiring a later cycle, rather than loop support. It does not have the effects of androgen-related effects such as hair loss, acne and so on. The increase in follistatin caused by YK11 will act as an antagonist of mystatin (which will block myostatin) and the anabolic growth characteristics of YK111


Product Name: YK11/ YK-11
Full Name: (17a,20E)-17,20-[(1-Methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna- 4,20-diene-21-carboxylic Acid Methyl Ester
Synonyms: (17a,20E)-17,20-[(1-Methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna- 4,20-diene-21-carboxylic Acid Methyl Ester;YK11 ((17α,20E)-17,20-[(1-methoxyethylidene)bis-(oxy)]-3-oxo-

CAS: 431579-34-9; 366508-78-3

Standard: In-house Standard
Appearance: White powder

Purity: 98.6 %

Shelf life: 2 years

Dosage: Daily dosage of YK11 is 4 mg once a day for hardcore users max 8 mg

Mini order: Only 1g, 5g, 10g

Package: Super discreet to ensure 100% pass rate

Stock now: Mass and plenty---Prompt shipment

Payment: T/T, Bank Transfer, Western Union, Paypal, Money Gram and Bitcoin

Lead time: Within 12 hours upon receipt of payment

Delivery: All Express Modes (EMS, DHL, TNT, FedEx, UPS, etc.)

Shipping time: 3-7 days by express door-to-door



In Kanno's report, muscle cells exposed to them produce more synthetic metabolic effects than DHT-exposed muscle cells. In this regard, it can be safely said that this is the best muscle to strengthen, without the adverse effects caused by traditional steroids, including many health risks. What happens is that it induces muscle cells, stimulating them to create more follistatin, much better than DHT.

In addition, it can not be ignored that research chemicals as SARM work through muscle androgen receptors, but do not damage bones and joints as well as discover other body parts of AR - due to their selective activity.


Although YK-11 has been shown to be a good complement to the establishment of muscle strength, especially for bodybuilders and athletes, it is also considered a great muscle inhibitory inhibitor. SARMs as a strong androgen but no side effects are special and valuable, and they can be common from injectable substitutes (such as steroids and hormones).

It can also act as a muscular inhibin inhibitor. What is muscle growth inhibin? This is a protein that restricts the production and growth of muscle tissue when present. So by suppressing the role of myostatin, it can actually increase the potential of your body to build larger and thinner muscle tissue. But while it sounds great, scientists have already proved it.

What happens is that it also inhibits the production and gradually inactivates follistatin, a myogenic inhibin inhibitor. At this point it can be said that, in addition to its synthetic metabolic properties, it is a potent and effective inhibitor of myostatin, which means more muscle for your service!


YK11 can be administered 8 to 8 mg weekly for 8 weeks per week. However, you may be concerned about the effects of estrogen, including breast enlargement, but now it is not here.

Because of its selective characteristics, it does well, but only the muscle cells of the muscle cells of the synthetic metabolic activity without adverse estrogen effect, which may lead to your movement "men's chest" shame.

In addition, the compound does not alter the expression of other genes in the body because it leaves an androgen receptor in other body parts (including bones, joints and prostate). So if you choose a typical steroid in the market, you can experience great muscle farming benefits, except that you may need to face side effects.

The best point is that it can provide all of the above advantages without hurting your body, especially your liver - you may need to choose these hormones by choosing other hormones on the market, which may require longer use In order to achieve any dramatic results. The

As the study is still ongoing, concluding details about the compound have not yet been published, side effects have not yet been noted. According to the original data and preliminary results, there is no adverse effect at all.

Dosages and Suggestion

Recommended maximum dose YK11 is require dosages of 2.0-5.0mg b.i.d. in males and 0.5mg-2mg b.i.d. in females to achieve optimal effects in humans for the noted indications


YK11 shows many hopes as a suitable synthetic metabolic SARM. With its potential for muscle growth, it has no unwanted side effects associated with synthetic metabolic steroids and hormones.

SRM YK-11 is a powerful SARM supporter that promotes the harvest of a lot of lean muscle, which is very useful for those who want to have aesthetics and chopped physique! View the latest and most popular YK-11 Focused Nutrition-based products. In the SARM world absolutely kill it.

4.Prodection details


5.Product Qualification

Certificate of Analysis

Product Name

(17-alpha,20E)-17,20-[(1-methoxyethylidene)bis(oxy)]-3-oxo-19-norpregna-4,20-diene 21-carboxylic acid methyl ester/YK11

Batch No




Produce Date


Ref Standard

Exp Date


Items And Results


Quality level



White or off white powder

White powder


Conforms to structure



Conforms to MW







Packing description

Sealed export grade drum & double of sealed plastic bag


Store in cool & dry place not freeze, keep away from strong light and heat

Shelf life

1 years when properly stored

6.Delivery,shipping and serving

Make an order

Please make clear what product and what quantity you need

Mini Order

Only 1g, 5g, 10 grams


Prices and Specification details(COA) would be offered for you to consider and confirm

Payment ways

T/T, Bank Transfer, Western Union, Paypal, Money Gram and Bitcoin

Delivery ways

All Express Modes(EMS, DHL, TNT, FedEx, UPS, etc.)

Shipping address

Provide your Valid and Correct destination address info(if possible with post code, phone number).


Select best ways according to quantity and safety degree(Super discreet, professional and experienced)

Lead time

Within 12 hours upon receipt of payment

Package pictures

Photos of parcel would be offered to tell apart the items

Tracking number

Offered once it is released

Shipping time

3-7 working days (Door-to-Door)

After-sale service

24/7 Online for any problems

1.What services do you offer?
We can offer the Custom premixes, Semi-Finished products, Finished products, OEM service.
We can also assist with formulations, blends and custom packing. QHNUTRACEUTICALS is your complete source for today and tomorrow's most potent and popular natural ingredients. With experience of more than 500 formula products, if you can envision a functional product, we can make it happen.

2.How do I make an order?
Simply contact our office by telephone +86-027-81302011 .We will connect you with one of our account managers who will be happy to assist you with your order.

3.When will my order ship?
Products in stock usually ship within 24-48 hours of your order being received and processed. If a product is not in stock, turnaround time varies but is generally about 1-3 weeks, depending on availability.

4.Do you sell small quantities to end users?
We accept any quantity for order, from grams to tons.

5.Do you Identity Test your Products?
Yes, we test the ID for all incoming raw materials before production of the extracts in the country of origin. Testing ID before any processing takes place helps us to deliver you the highest quality ingredients at the lowest possible prices.

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