Black Mamba OSTA
Black Mamba OSTA

Black Mamba OSTA

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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.


Ostarine, or MK 2866, is a selective androgen receptor modulator, or SARM. This refers to an anabolic steroid with similar effects to testosterone, including increased muscle mass and strength and a more robust bone structure.

The SARM, known as MK-2866 or Ostarine, has impressive study results. It is a SARM that should not be overlooked when enhancing muscle mass and strength. However, Ostarine can also be used to cut body fat in a bulking, cutting, or recomping cycle. It is a versatile tool for bodybuilders and athletes looking to achieve their goals. Ostarine is considered the most popular SARM due to its safety profile and ability to produce results without negatively affecting the body. It is also very effective at increasing muscle mass and strength while reducing body fat.

Ostarine is well-tolerated, and side effects are minimal when taken at the correct dosage. It is also non-toxic to the liver and has no adverse side effects associated with anabolic steroids. Ostarine is an effective and safe SARM for bodybuilders and athletes.

Typically, a cycle lasts six to ten weeks, with dosages ranging from 10 to 25 mg for six to ten weeks.

Key Benefits:

  • Building lean muscle
  • Increases protein synthesis
  • Reduce body fat
  • Helps the development of skeletal muscle and bone density.
  • Increases function of sexual organs.


(60 CAPSULES) 15mg per capsule

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