Black Mamba YK11 25mg 30 Caps
Black Mamba YK11 25mg 30 Caps

Black Mamba YK11 25mg 30 Caps

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1 Review:

YK11 is the King!
29 July 2023  | 

I've used numerous sarms over the years but these YK-11s really knock things up another level!

5 of 5 people found this review helpful.


Thanks for sharing your feedback Martin! :)

Shipping Info

To make your shopping experience with us more enjoyable, we offer a wide range of delivery partners, including Royal Mail, DPD, and UPS. All orders in the UK are trackable. Orders over £79.99 are delivered free of charge.

  • Royal Mail 1 - 3 Working Days*
  • UPS 2 - 5 Working Days*
  • DPD 2 - 4 Working Days*
  • FedEX 2 - 5 Working Days*

* From shipping confirmation email notification being sent. Delivery times are not guaranteed. 

** For orders dispatched to the EU orders shipped can take 5 - 21 working days to reach their destination. It is the customer's responsibility to cover import duties and taxes (if applicable) Please note that we cannot be held accountable for any orders that cannot pass through border customs. You must ensure such orders are legal and allowed by the country to which they are shipped. Orders are not refunded once shipped. By placing your order, you hereby agree to such terms.

Tracking & Delivery 

You will receive a 'Shipping Confirmation' email once your order has been dispatched. It will include tracking information and the courier tracking link you can use to follow the progress of your order. It is imperative to provide your correct email address, otherwise, you will not receive this email. In rare cases, your email provider filters our emails into your spam folder, so please check this folder before contacting us. All orders go through fraud screening. If any issues arise, shipment may be delayed until they are resolved.

If you do not receive your order by the expected delivery date stated, you MUST inform us within 12 hours by emailing us at so we can investigate with the relevant courier immediately. Failure to do so may mean we are unable to remedy the problem which may include a refund or reshipment of your order.

Incorrect delivery information as stated by the customer is the responsibility of the customer who will be charged for carriage if we need to make a collection on their behalf and/or the order needs to be reshipped.

We do need to state that it is the customer's responsibility to ensure they are present to sign for their order. In no way can Just SARMs and/or its couriers be held liable for failed deliveries, unless either party has been negligent in their duty to deliver. 

For full terms and conditions click here.

Black Mamba YK-11 - 25mg - 30 Capsules

Using Black Mamba YK-11 will enhance muscle growth to a level far higher than without it. It will not cause water retention or its associated side effects. You will experience an increase in the level of follistatin as well as a decline in myostatin in your body.

Unlike anabolic steroids, it has none of the common side effects. It can help you exceed your genetics in terms of muscle mass accumulation. HGH, steroids, and SARMs all work differently in order to provide additional energy and muscle growth.

YK11 is highly beneficial. Unlike anabolic steroids, its mechanism targets specific cells only, eliminating a lot of the unpleasant side effects associated with them.

Black Mamba YK-11 Key Benefits

  • Myostatin inhibitor
  • Classed as a 'synthetic steroid'
  • Quick gains in muscle size and strength
  • Increases follistatin levels
  • Suppresses myostatin
  • Helps to reduce bodyfat
  • Healthier and stronger bones
  • Does not require PCT 

How to use Black Mamba YK-11

Take 1 capsule daily. Preferably taken at the same time each day.

YK-11 can be cycled for upto 8 weeks whilst keeping side effects to a minimum, followed by 4 weeks of PCT (post cycle therapy).

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