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PURE & NATURAL award-winning nutrition
200 NUTRITION INNOVATIONS to keep you smashing it
OVER 4 MILLION social reach and climbing
FREE DELIVERY when you hit the magic £50


  • Vegetarian
  • Vegan
  • Gluten Free
  • Natural flavours
  • Diabetic
  • Wheat Free
  • GM Free


When you spend over £50

Why you love it...
"3g of Leucine with every main meal greatly improves protein synthesis contributing to lean muscular development." - Janette
Why we love it...
Leucine 1000 is a branched chain amino acid supplement source from premium grade Leucine. It is designed for high performance elite athlete training with a high strength formulation that provides 1000mg of Leucine per tablet.

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Leucine 1000

Leucine 1000 is best taken post workout ideally with a TPW™ protein shake of your choice. Considered an essential amino acid, it’s the most researched of all branch chain amino acids, which is why Leucine is a key part of many strength, speed and power athletes supplement programme.


Leucine 1000 Formulation

Leucine is deemed an essential amino acid and is one of three amino acids found in Branch Chain Amino Acid (BCAAs) supplements. Whilst isoleucine and valine are not without their merits, it’s leucine that’s been studied by strength specialist scientists the most. So understanding the importance of leucine supplementation, the TPW™ Development Team set out to create the most potent and powerful form in sports nutrition today. The result was Leucine 1000 which contains 1000mg of leucine in a single tablet.


Leucine 1000 Lean Muscle

Leucine 1000 is considered a very pure product. It is calorie free so has no nutritional or caloric impact whatsoever. This is why it’s a very popular product with those looking to build lean muscle. Furthermore, it’s gluten free and wheat free meaning it’s suitable for those with food allergies. Lastly, as with all products in THE PROTEIN WORKS™ range, it’s GM FREE meaning it is as natural and pure as it can possibly be. At TPW™, we will always have this philosophy across all our products.


Leucine 1000 Quality Assurance

Here at TPW™, you can have supreme confidence in the product quality and supply source. We personally quality check every raw ingredient supplier and ingredient before giving it the TPW™ quality seal of approval to be used in our formulations. Traceability, quality, and consistency are the three things we demand on every single ingredient. This is the TPW™ philosophy that flows through every product we make and sets us apart in the world of sports nutrition today.

Please note that this product comes in our unique letter-box friendly container and foil sealed for freshness. Whether you are at home or not, your TPW™ pill order will be waiting on your door mat when you return thanks to its innovative dimensions and packaging. Also, larger sizes may be supplied in small multi-packs to ensure the maximum freshness of your larger order.

A Nice Alternative to the powder

- 02 April 2015

These tabs make a great addition to the range and speed up the process of consumption and allow for you to avoid the taste of the powdered form. 3g with every main meal greatly improves protein synthesis contributing to lean muscular development.

For Free Protein Use My Referral Code: JM15339

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Additional Information

Values based on: No
Energy (kJ) No
Energy (kcal) No
Fat (g) No
Fat of which Saturates (g) No
Carbohydrates (g) No
Carbohydrates of which Sugars (g) No
Fibre (g) No
Protein (g) No
Salt (g) No
Cholesterol (mg) No
Sodium (mg) No
Calcium (mg) No
Please Note: No


Serving Size:

As a food supplement, take 3-5 tablets per day with a high protein meal. On training days take 3-5 tablets post workout with your TPW™ shake. Do no not exceed recommended daily use.


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Q. When should I use Leucine 1000?

A. It depends on your lifestyle and goals, but we recommend consuming 3 tablets following training with your choice of TPW™ shake.

Q. What are the main reasons for using Leucine 1000?

A. To use in conjunction with protein to help contribute to a growth in muscle mass and the maintenance of muscle mass.

Q. What does Leucine 1000 taste like?

A. Leucine does have a bitter after taste which is why we’ve put it in an easy to swallow tablet format.

Q. Is all Leucine the same no matter what brand you use?

A. As with so many things in life, if you don't ask the right questions, you won't get the right answers! The quality of ingredient can vary significantly and therefore the potency will do too. In addition, just because a product may be called pure it doesn't mean that it necessarily is. We recommend you read the ingredients and nutritionals on the label to better understand exactly what you are buying. We can assure you that our products are 100% pure. At TPW™, we are committed to transparency and openness in all our products and that is why we provide a 'Product Profile' which gives a complete overview of the product's background including our approval, location of manufacture and money back guarantee applicability.

Q. How can I tell if the Leucine I buy is good quality?

A. Look for the Certificate of Analysis which will give you the assurance that what you are buying is what it says it is.

Q. Is Leucine 1000 suitable for vegans and vegetarians?

A. No, it is not suitable for both vegans and vegetarians.

Q. Can I use Leucine 1000 with other supplements?

A. The simple answer is yes. We recommend you always check serving instructions on each product if you plan on taking a combination of supplements. Leucine 1000 is most widely taken alongside a good quality protein such as TPW™ Whey Protein 80 and Whey Protein 90.

Q. What if any side effects will I get from taking Leucine 1000?

A. We haven't heard of any nasty side effects from taking TPW™ Leucine 1000.

Q. What is Leucine?

A. Leucine is one of the three Branched Chain Amino Acids (BCAA), considered to be the BCAA that offers the most benefit to the body.

Q. Do natural whole foods contain Leucine?

A. Yes. All protein rich foods contain some amount of Leucine. Dairy products and red meat contain the highest amounts, as well as brown rice, beans, nuts and whole wheat. However this is in small doses which is why athletes often supplement with it.

Q. Who should take / benefit from using Leucine?

A. Bodybuilders and strength athletes. Endurance athletes. Those new to weight training. People involved in team sports. Those who participate in regular intense training and exercise.