TWP YK11/MK677 stack

(1 customer review)


  • increase bone density
  • unlock your natural limits
  • gain strength

Out of stock

Free Shipping Over £50 (UK)

  • Check Mark Free Worldwide Shipping Over £100
  • Check Mark Fast Delivery
  • Check Mark Secure Payments
  • Check Mark Satisfaction Guaranteed

What is TWP YK11/MK677 stack?

TWP YK11/MK677 stack is another great stack for increasing muscle mass. YK11 is great sarm in every way. It basically helps you go over your natural limits when it comes to strength, muscle mass, and bone density. The Warrior Project is the growth hormone secretagogue MK-677. Everyone who wants to get lean body mass will love this product. It increases growth hormone release without unwanted cortisol. In other words, You will get bigger and stronger. Also, MK677 helps for better sleep and will strengthen your bones. The Warrior Project MK677 is getting more love from our customers as there have not been any side effects. Do not know whether to choose Sarms or prohormones? Read our article

This is a combo for strength, muscle mass and increasing bone density!

Who is TWP MK-677 For?

TWP MK-677 capsules are exclusively formulated for healthy male athletes looking to take their performance to the next level and build the most lean mass possible. The Warrior Project MK-677 capsules are not suitable for women, children or adults under the age of 21.

For those with any pre-existing medical condition or currently on prescribed medication, please seek the advice of your doctor before starting supplementation. Do not use TWP MK-677 capsules if you are a competitive athlete subject to testing for performance-enhancing substances. Please note that TWP MK-677 uses gelatin caps.

MK-677 10mg
Alpha GPC 100mg
Huperzine A 100mcg


Who is TWP YK-11 for?

The bodybuilding community’s interest in YK11 stems from the fact that it promises to offer quick muscle gains without any of the side effects that everyone hates.

In a cellular study that was conducted to determine the action and effects of YK11, it was found that this drug can increase muscle mass by escalating the growth of follistatin (a myostatin inhibitor); a well-known muscle-building protein.

Another study suggests that it has the potential to stimulate bone-building proteins to help improve bone health. Bodybuilders who’ve used YK can attest to its incredible ability to stimulate fat loss while increasing muscle gains with no observable side effects. But with no animal or human studies to back these claims, there’s no telling how accurate they are.

Like other SARMs, YK-11 is a banned substance according to the World Anti-Doping Agency, which means it’s off-limits for competing bodybuilders and athletes alike.


YK11 has a similar chemical structure to DHT and this is shown by the way it binds to androgen receptors. The body produces DHT naturally for the purpose of promoting prostate health, hair growth, and appropriate puberty development.

If we were to class YK11 as a SARM then it would be the strongest and most potent of its kind on the market. That’s because it only activates androgen receptors partially, which causes catabolic androgenic activity to shoot through the roof. In addition, YK11 is known as a myostatin inhibitor.

Researchers did a cell study to find out how it works to build muscle. The results show that it simply aims to increase follistatin levels. Follistatin is another naturally occurring protein in the human body which helps keep myostatin in check. Myostatin is a hormone whose job is to curtail unbridled muscle growth.

So far, only YK11 has the ability to inhibit myostatin.

Further evidence suggests that YK11 can also promote bone growth by interfering with a gateway that functions like DHT.

Additional information


TWP Nutrition

Product Filter (SARMS)

Ibutamoren MK-677, YK-11

1 review for TWP YK11/MK677 stack

  1. Adam

    I was using this stack off season to gain more muscle. I can honestly say that I have never experienced anything better than that!

Add a review

Your email address will not be published. Required fields are marked *

Please read: not for human consumption. This product is for research purposes only. This product is not a food product. By acquiring this product, you are in full knowledge that it’s not a food, nor is it for human consumption and it’s for market research purposes only.

You may also like…

  • Sale! twp nutrition rad 140

    TWP Nutrition RAD 140 SARM

    Select optionsLoading Done
  • TWP Nutrition YK-11

    TWP YK-11 Sarm

    Read moreLoading Done
  • twp legend/mk677 stack

    TWP Legend/MK-677 stack

    Add to cartLoading Done
  • warrior project mk677


    Add to cartLoading Done
  • the warrior project lft-sht


    Select optionsLoading Done
  • the warrior project i-drive

    TWP I-Drive Glycogen Disposal Agent

    Add to cartLoading Done
  • twp rad140/mk677 stack

    TWP RAD140/MK677 stack GET BACK TO GYM

    Add to cartLoading Done
  • TWP Nutrition MK677

    TWP Nutrition MK677 Deal (2x MK677)

    Add to cartLoading Done
  • i-drive/ostasize stack

    TWP I-Drive/Ostasize stack

    Add to cartLoading Done
  • TWP Swole-GH stack

    TWP Swole-GH stack (MK-677/LGD-4033) (60 CAPS)

    Add to cartLoading Done