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L-Leucine Powder

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In stock

Price From: FROM $13.96

Ships tomorrow if ordered in the next 16 hours and 53 minutes!

L-Leucine Powder


  • 100% Pure L-Leucine Powder
  • Muscle-building amino acid
  • Non-GMO
  • Taste

  • Mixability

L-Leucine is an amino acid that may improve energy and athletic endurance, and build and maintain muscle.


Serving Size & Timing

It is suggested that this supplement be taken in serving sizes of 2500mg two times per day. However, it is important to remember to take Valine and Isoleucine with it, or else the proportions of amino acids in the body will be off, potentially leading to adverse effects.

Nutritional Information

Supplement Facts

Serving size: 2500 milligrams
Serving per container: *
Amount Per Serving % Daily Value**
L-Leucine 2500mg *
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, soy, dairy, yeast, gluten, corn and additives.

As a dietary supplement, take 2500mg (rounded 1 tsp) twice a daily, or as directed by physician.

US Standard Measuring Spoons
Spoon Size(level) milligrams
1 teaspoon 2135
1/2 tablespoon 3202
1 tablespoon 6404



This supplement is considered food grade and has no fillers of any kind present in it.


Leucine is safe as long as suggested serving sizes are adhered to. However, anyone that has ever been diagnosed with problems affecting the liver or kidneys should not take Leucine without asking for a doctor’s opinion beforehand. Those who are nursing or pregnant should not take this supplement.


This supplement is easily dissolved in water, but it is best to combine with a protein shake and to take an hour before exercise. It should be stored in an area that is free from light, heat, and moisture in order to preserve potency and effectiveness.

California residents: Click here for Proposition 65 warning.

Customer Reviews

Great product good service
Great stuff excellent service got here early Products excellent I will order from bulk anytime*

On 4/5/2019 Angel said...

BS is the BEST
No matter what I've ordered it always arrives sooner than expected and packaging has always been great. With my latest order of Leucine nothing is different. Same fantastic service, price, and delivery. My first time taking Leucine and looking forward to the results based on reviews. Will continue to order from BS because there is nothing out there that is better or even comes close. 5 STARS across the board.*

On 12/4/2018 robert said...

Try it
I've been buying supplements from bulk supplements for about a year now and this is my first time purchasing this particular i can't speak on this supplement in detail but ive purchased alot of other products from bulk supplements and haven't been disappointed yet....*

On 10/29/2018 Torrance said...

I use L- Arginine and L-Citrulline and L-Leucine together in my protein shakes and ‘‘tis combination seems to help maintain my muscle mass and lower my blood pressure and keep me “vascular” looking*

On 10/24/2018 Mark said...

Best pure musce builder
I highly recommend not just this supplement but all supplements from Bulk Supplements. Their supplements are 100% pure product with no filers. Leucine stimulates protein synthesis and without a doubt Bulk Supplements provides an optimal supplement.*

On 8/11/2018 Ginna said...

Leucine has been shown in multiple studies to be the most important amino acid in the anabolic process. The obstacle for me was a convenient and cost-effective way to consume at least 10 grams a day. They usually come in 500 mg capsules. That's 20 caps a day! And it's not cheap. I recently came across Bulk Nutrition and they are a lifesaver with its powdered product. The powder does not affect the taste of my shake and is a far greater value than the pills, not to mention easier to ingest. And though coming in a sturdy bag instead of a plastic container is a real cost saver it's also much more convenient to use. With plastic containers, when you get to the end of the contents, I can't fit my hand in deep enough to scoop the rest of the powder. With a bag it's a non-issue because I can fit my entire fist and scoop out every last bit of powder. *

On 8/8/2018 Philip said...

Best supplemeent ever
L-Leucine is the #1 supplement to increase Muscle mass and to decrease body fat. Supplements from Bulk Supplements are pure product with NO fillers, and NO sugar. I only purchase supplements from Bulk supplements.*

On 8/1/2018 Ginna said...

THIS site makes it easy to get my BCAA Leucine in. doesn't taste bad at all*

On 6/24/2018 Chad said...

Great product!
I have purchased l-leucine from other sites and must say that the quality, price and speedy delivery from Bulk Supplements is hands down the best I have experienced. I am thouroghly pleased with the product and overall shopping experience at this site. Highly recommend!*

On 5/21/2018 Jeff said...

Great Quality
I love this isoleucine, great quality and last a long time. I'll keep ordering from Bulk Supplements*

On 5/10/2018 D said...

L-Leucine is super important and this was quality stuff
New research about the effects of L-Leucine show its effectiveness in the treatment for diabetes. The great thing is that sends really great product and FAST! I have nothing but great things to say.*

On 4/19/2018 Ted said...

Great Product
I feel like this is a high quality product at a great price.*

On 4/19/2018 Matt said...

Great overall
This is a great product overall however the mixability is a bit lower than I expected, which ends up with some getting left behind in my cup. *

On 1/22/2018 David said...

Quality Product
Great Quality Product Overall to help maintain and build your Muscles. I would highly recommend this product for all and any type of athletes. I use this in my Intra-workout drink and also post workout drink with my protein*

On 12/8/2017 Eugene said...

Leucine a great buy from Bulk Supps
This stuff mixes easily. A great way to get the most important amino acid in your mix. I recently ordered 5 kilos. I mix it in my during/after workout drink.*

On 12/7/2017 Brian said...

What I wanted, fast and the right price
I'm very happy with this product. I don't need a fancy formulation for my BCAAs, especially when I am going to drink it down in 3 gulps. This stuff also helps me fall asleep at night; feels like a good natural sleep.*

On 8/3/2017 Ramon said...

Great Product
Leucine is the most anabolic of all amino acids. I love adding it to my BCAA for the gainz *

On 6/28/2017 Austin said...

Great Product!
It is a great product overall. Great price and great quality. Excellent for building or maintaining muscle. *

On 6/21/2017 Arturo said...

Works great, best price
After doing research on BCAA's it was evident that L-Leucine is the BCAA that has the most benefits for both recovery and muscle building potential. I was tired of shelling out 30$ for a 28 serving can of "proprietary blends." Bulk Supplements is the real deal and they have great products. I purchased this along with 7 other products to make my own pre and post workout mixes. They have high-quality items at the best prices I've found so far. *

On 6/16/2017 Christopher said...

Recently placed an order for leucine, I have been using it pre/intra/post work out along with all through out the day, I seem to recover faster, seeing good gains with weight lifting and prevent muscle wasting, excellent product. *

On 4/6/2017 Antonio said...

awesome product gained size and strength/ love the price *

On 3/23/2017 Barry said...

Awesome Value!
I keep ordering this and all my supplements from this site. It's obvious to me this company invests their money in quality and value. No frills. No beating around the bush. If you want a great product for an awesome price, this is definitely what you're looking for. *

On 3/22/2017 Steven said...

Awesome Product
This supplement is one of the only reasons I recover so quick and can train as much and as hard as I do. Excellent price, shipped very quickly, I will only use Bulk supplements. I hate using brand new mainstream junk, I add this supplement to all types of meals and am constantly consuming it along with food and drinks. My most most most important supplement. *

On 3/1/2017 Chase said...

Great product and mixed well with my other supplements. Looking for an NO booster in bulk? Look no further.*

On 2/20/2017 Daniel said...

I bought 1kg of this product right off the bat. Unbeatable prices. Bulk Supplements will be my absolute #1 place to buy from now on. I can't believe how much money I'm saving--and the quality is amazing!*

On 1/22/2017 Jeff said...

Great Product
PURE, Exceptional Grade product, mixes with out problems and health benefits are great*

On 1/4/2017 Aaron said...

Awesome! Second day of use and the effects are remarkable*

On 12/29/2016 Juan said...

I love this Leucine its great in pre and post workout shakes. Its a great quality and awesome taste. Bulk Supplements is the only place I buy my supplements.*

On 12/14/2016 David said...

I already had a 500G bag of BCAA 2:1:1 and wasn't aware BS had the BCAA 3:1:2 ratio listed. So I mixed the 100G of Leucine into my 2:1:1 bag to get the Leucine ratio closer to 3:1:2.

Leucine benefits:


L-leucine is an essential amino acid, meaning you must obtain it through diet because your body can't produce it. You can acquire L-leucine by eating meat, dairy products, eggs, soy and other beans, or by taking it as a supplement.

Leucine has potential benefits for weight, lean muscle mass and cholesterol levels, although research is limited and conflicting, according to physician Ray Sahelian, who has a website devoted to natural supplements. Studies have mainly involved animals rather than humans. Consult a qualified health care provider before taking leucine supplements.

Muscle Maintenance

L-leucine, like other essential amino acids, helps maintain muscle mass. For this reason, many bodybuilders and athletes take leucine supplements. One study with animals published in the December 1, 2005 issue of the "Journal of Physiology" found that feeding aged rats leucine inhibited muscle protein breakdown.

Another article in the journal discusses this research, explaining that although decreasing dietary fat is advisable for older people, continuing to eat high-quality protein is important.

Weight Loss Benefits

Another animal study, this one appearing in the May 2009 issue of "Medicine & Science in Sports & Exercise," evaluated the effect of L-leucine along with exercise on weight loss in rats who previously ate a high-fat diet for 15 weeks. Researchers divided these rats into two exercise groups, with one group receiving leucine supplementation. Exercise combined with leucine had stronger effects on weight loss than exercise alone.

Cholesterol Levels

During the May 2009 "Medicine & Science in Sports & Exercise" study, supplementing the rats with leucine also increased blood levels of high-density lipoprotein cholesterol, the so-called "good" cholesterol. Research published in the June 2007 issue of "Diabetes" investigated the effects on cholesterol levels in mice supplemented with leucine in drinking water.

Leucine had no noteworthy metabolic effects on rats eating regular chow. It did produce significant effects on the group eating a high-fat diet compared with other mice eating the same diet without leucine supplementation.

Consuming leucine resulted in up to a 32 percent decrease in weight gain and a 25 percent decrease in body fat in these mice, along with improving insulin sensitivity and preventing high blood sugar.

The mice receiving leucine also experienced decreased levels of low-density lipoprotein cholesterol, the "bad" cholesterol, of 53 percent and decreased total cholesterol levels of 27 percent.

Leucine side effects:

Most Americans easily get enough leucine from foods rich in this essential amino acid. Such foods include poultry, fish, meat, nuts, seeds and dairy products like yogurt and cottage cheese.

Leucine supplements may increase athletic performance and muscle strength, says the Memorial Sloan Kettering Cancer Center, though more research is needed. While you can't consume enough leucine from foods to cause harmful side effects, you should use leucine supplements with caution.

Recommended Intake and Sources

Healthy adults need approximately 42 milligrams of leucine per kilogram of their body weight each day. An average man weighing 196 pounds would require about 3,733 milligrams of leucine daily, while a woman of 166.2 pounds should have around 3,166 milligrams.

To avoid the possible side effects of leucine supplements, it's best to obtain the majority of the amino acid through diet. Excellent sources include turkey breast, which contains 2,076 milligrams in every 3-ounce serving, and roasted soybeans, with nearly 5,000 milligrams per cup.

Effect on B Vitamins

In 2012, a study published in the "Journal of Nutrition" reported that men taking more than 39 grams, or 39,000 milligrams, of supplemental leucine per day had an increased likelihood of experiencing harmful side effects.

One of these side effects can include vitamin B-3 and vitamin B-6 deficiency since leucine interferes with the body's ability to synthesize these nutrients. Not having enough vitamin B-3 -- also known as niacin -- may cause vomiting, depression and indigestion and may increase your risk of Alzheimer's disease and high blood cholesterol. A lack of vitamin B-6, or pyridoxine, can result in memory loss, irritability and depression.

Possible Impact on the Prostate

Prostate cancer cells need leucine to grow, multiply and spread, determined a "Journal of the National Cancer Institute" study published in 2013. Leucine is delivered to these cells in the body by L-type amino acid transporters.

The researchers concluded that finding a way to inhibit these transporters could prevent prostate cancer cell growth by limiting the amount of available leucine. It is not known if taking supplemental leucine and significantly increasing the amount of available leucine in the body could increase your risk of prostate cancer or speed the growth of tumors in men, however.

Interaction with Diabetes Medications

When supplemental leucine is consumed with a source of glucose, it increases the amount of insulin your body produces and lowers your blood sugar level. Taking leucine at the same time as a diabetes medication, including insulin, may cause your blood sugar to drop too low.

If you suffer from hypoglycemia -- chronic low blood sugar -- due to a medical problem or a deficiency in an enzyme or hormone, avoid taking supplemental leucine.

Courtesy of: *

On 12/7/2016 William said...

Quality Product - Great Price
Been using this for over a year now, delivery is always on time, quality of the product is great. Mixes easily, taste of L- Leucine is what it is, not a issue to me. Price is great, I have saved a lot of money.*

On 10/18/2016 Steve said...

L Leucine
Just started taking this product. I take 4 other bulk supplement products. Products all review well and are inexpensive. Have been very impressed with company and products. *

On 10/6/2016 Frank said...

I always add extra Leucine to my pre and post workout shake. This help me push harder and recover faster. Leucine is the big man of the big 3 bcaa. Bulksupplements Leucine is cheaper and top quality. Will buy again.*

On 10/3/2016 Christian said...

This is a great product and value. Definite recommend! *

On 9/19/2016 Todd said...

Great Price - Great Product
I bought this to blend my own amino complex. It is perfect for what I needed. Clean, pure, and cost-efficient. Way better value than what you would buy from anywhere else. Thank you bulk supplements!*

On 9/14/2016 Justin said...

Great Price - Great Product
I bought this to blend my own amino complex. It is perfect for what I needed. Clean, pure, and cost-efficient. Way better value than what you would buy from anywhere else. Thank you bulk supplements!*

On 9/14/2016 Justin said...

When I ordered 5kg of L-Leucine I messed up and didn't put in the 10% discount code I had and didn't select free shipping. I e-mailed right away and they fixed the order, no problem. Great customer service and it arrived quicker than expected. I make a pre and post workout mix of 5 parts each L-Leucine, Glutamine, Creatine, and 1 part beta Alanine by weight. I take 2T in a whey shake before and after a workout. I also add 1T to my breakfast shake. L-Leucine is the most anabolic of the amino acids.*

On 8/27/2016 Michael said...

Pure Powder and Worth While Supplement
This powder will maximize your protein-synthesis and it is a part of any serious gym goer's regimen. Great price and mixes with glutamine and creatine very well. Very nice vacuum sealed and resealable package. I'll be reordering for sure.*

On 6/29/2016 Jared said...

Product takes a while to dissolve in water. The end result is to hopefully slow the degradation of muscle mass. Product came in a easy to open resealable bag,*

On 6/29/2016 David said...

Essential Amino Acid
Re-ordered L-Leucine; this time direct from Bulk Supplements rather than going through Amazon, and I couldn't be happier. I started taking this product after I started noticing plateaus and decreases in my lifts despite working out consistently. I chalked it up to decreased energy from fasted training, and calorie deficit. L-Leucine was recommended to help preserve muscle mass and avoid catabolism. My bench press did NOT suddenly increase by 50 pounds, but I did notice small improvements, and I've been using it on my workout days ever since. I love Bulk Supplements from their wide variety of quality products, their ridiculously fast shipping, and great customer service. I have several products I order from Bulk Supplements, and the list seems to be constantly growing. *

On 6/12/2016 Andrew said...

Great Quality!
Bulksupplements luecine is definitely high quality and very pure! It mixes very well too and has helped me maintain lean mass going through contest prep. *

On 6/11/2016 Bryn said...

Fantastic bulk of amino acid that is arguable one of the most essential. Couldn't ask for anything more, its everything i needed!*

On 5/2/2016 Tanner Wagner said...

great product, the description was 100% accurate and the delivery quick \*

On 4/21/2016 alex said...

great product, the description was 100% accurate and the delivery quick \*

On 4/21/2016 alex said...

Worked just fine for Cycling
Mixed it with water and took it for a ride. Worked just fine. I like how quickly it came in the mail, and didn't have any extra wasted packaging. Just the simple bag in a simple envelope. Perfect!*

On 4/19/2016 Eric said...

Arrived very quickly and the quality is amazing. No weird taste and texture is just great for mixing with anything! Will order again!*

On 4/6/2016 John said...

Product arrived very quickly after my order. Powder is definitely a great consistency and mixes well. No odd taste or order. Great product and will order again when I run out; amazing bargain!*

On 4/6/2016 John said...

it often proves difficult finding amino acids in free form not mixed with other nonsense and unsweetened although bulksuppliments has done just that. Research supports the effects of L-Leaucine and just that, it's nice to be able to get a product without other add ins. Shipping was quick and easy and customer service was very well rounded. The only complaint I have is the packaging and resealable bag seem to be rather difficult to operate correctly and don't stay close. Other than the resealable bags the product is solid and so is the company. *

On 4/3/2016 Tyler said...

Good quality.
I started taking this product when my doctor suggested it. Seems to be working great. Bulk Supplements products are great and they are reliable and ship quickly. Will be shopping here again. *

On 3/21/2016 Jeff said...

L-Leucine is a great product. I would definetly recommend. As usual this product was shipped and received in a fast and timely matter. I will never shop at another website.*

On 3/17/2016 Nick said...


On 2/25/2016 David said...

Great for recovery
I take 4-6g a day of leucine and my recovery time between workouts has decreased noticeably which means I can have more frequent, intense workouts. L-leucine will remain a staple of my recovery process. *

On 2/14/2016 James said...

For mature muscle
Leucine is critical for masters class competitors. I have had excellent results with leucine from Bulk Supplements.*

On 1/9/2016 Kurt said...

Only TRUE protein synthesis booster
Need to supplement with 8gr a day of this to send the message to the muscle to GROW, what I take on food or complex BCAA's not enough to make a chage*

On 12/16/2015 Lizbeth said...

Great product, great price I always order from bulk supplements*

On 12/7/2015 david said...

Great product
L Leucine is one of man components to the Branch Chain Amino Acids; its a one of the key essential aminos for building muscle

This product is the best product I have tried so far; great results in the gym

Bulk Supplements have the best quality products with the best prices as well.*

On 12/5/2015 Andrew said...

Great product. delivers eveytime.*

On 11/22/2015 Carlos said...

L-Leucine & All Products Ordered
Bulk Supplements is our Number 1 Bulk supplier!
They are our go to when we need quality products in bulk!
We love the L-Leucine and the GREAT results!
We love the Great Service! We order they ship, literally that fast!
We love the Quality!
Thank you Bulk Supplements for being on our team!

Ty Bateman
Owner getFITwithTY Professional Fitness*

On 11/10/2015 Ty said...

Great product
Ordered multiple times and never disappointed. Great for training in a fasted state. Mixes great with some flavored water. Shipping is fast and a great value.*

On 11/4/2015 Todd said...

As advertised.
Mixing 4g into ~30g of whey protein isolate is supposed to facilitate protein synthesis or whatnot. That's great and all, but it takes my unflavored whey from bland to gross. Definitely make sure you have a flavoring plan.

As usual from Bulk Supplements, it's high-quality, it mixes okay, and arrived quickly. Love the company. Not the taste.*

On 11/2/2015 Jed said...

Leucine is the most anabolic BCAA helping stimulate protein synthesis. This is a great addition to any cut to help preserve muscle mass or on a bulk to help build muscle. *

On 11/2/2015 Athanasios said...

Time to grow.
This is the first time I have purchased L-Leucine from, but not my first order from these guys. This time around I decided to make my own 10 ingredient Pre workout mixture. No doubt this is the place to do it. Valine and Isoleucine need to be consumed with this in around a 2:1:1 or ratio. Package came safely and fast. This is a pure, lone, Amino Acid, so taste by itself isn't very desirable of course. I ordered a 1kg size bag and once I received it I noticed that the Manufacturing date was 11/14 and and the expiration date is 10/16. I wish I received a fresher product but in the end this bag will be consumed way before then. I'm looking forward to purchasing more items in the future as their customer service, products, and shipping are top notch.*

On 10/11/2015 Chaz said...

Great quality and value, perfect for fasted training
I train fasted in the morning (weightlifting), and this l-leucine is the perfect thing to take beforehand to limit the catabolism that results from training in a fasted state. Five grams mixed with my pre-workout and I'm ready to go. Cheaper and more customize-able than many name-brand amino acid products; I do recommend taking it with something that has a flavor since it's somewhat bitter on its own. Overall a great product for those who want to train fasted/boost protein synthesis while staying within a budget. *

On 10/1/2015 Jenna said...

L Leucine
Good product, high quality. Order shipped and received quickly.*

On 8/30/2015 Shawn said...

Awesome Product
The product does not have the best taste, but it does the job. Mixes great with some flavored water.

Bulk got me the products in a timely fashion. *

On 8/24/2015 HotRod said...

Great customer service
I ordered Leucine to help supplement my protein intake and it does just that. Mixes easily. Bulk supplements was extremely fast in getting it to me. Ordered it on a Saturday and got it on a Wednesday. Couldn't be happier.*

On 8/11/2015 Chris said...

weight loss
this product mixed with others have been a great help to loss weight . Help with recovery of the body during and after exercises. Have found the products very pure and helpfull.*

On 7/25/2015 alex said...

Love this place
I love getting my supps in pure powder form! This is the place to get premium quality for a great price. *

On 7/25/2015 Joshua said...

Good Product
Faster recovery, fast shipping, good quality product and excellent price. It has a not so pleasant smell but mixed in my post workout shake I don't even notice it. Good product overall. *

On 7/22/2015 Arturo said...

is a great addition to any protein shake to increase protein synthesis to a greater degree or to take by its self before a training session and can be added to oats as well*

On 7/18/2015 Rich said...

Have been mixing 1 teaspoon with my protein shake. I take it before and after workouts.*

On 7/9/2015 Mark said...

Great product and fast shipping
I have only used this product a few times so far but results are already there. I'm using it mixed with post workout shake (whey, maltodextrine, leucine.) I received this product the very same week I ordered it. I love that kind of service.*

On 6/27/2015 Monte said...

L Leusine
love this product. Fast recovery over any other product I've tried.*

On 6/14/2015 john said...

Best Price!!!!
Quality powder at the best price on the net!!!!!*

On 6/9/2015 Robert said...

Just started using it and mix with my regular protein (1 tsp). I take (1 tsp)
everyday with my protein and before and after on work out days. Feel the energy since taking product.*

On 6/7/2015 David Palafox said...

Pure Leucine
I already have Bulk supps BCAA's 2-1-1 ratio. I bought extra Leucine to spike my pre and post shakes with extra muscle building protein synthesis. I wanted equal amounts of isoleucine and valine so I didn't buy the 3-1-2 ratio bcaa's that bulk supps sells. This way I have a 3-1-1 ratio or I can add even more leucine and get a 4-1-1 ratio and still maintain 1.25grams of isoleucine and valine. I hated the fillers in other companies "pure" bcaa's. Happy to find products without any filler of any kind. Will continue buying again and again.*

On 6/6/2015 Matthew said...

L leucine
Only been about a week but feel a quicker recovery time after workouts. Along with their d aspartic acid product which I love this is also a great buy.*

On 6/5/2015 Damian said...

Leucine powder
Great stuff and a tremendous price!!!!!*

On 5/24/2015 Robert said...

muscle build fat loss combo
need to be taken right but is great at the job everyone is talking about*

On 4/23/2015 tim said...

Great Product
Leucine is great for any body who trains in a fasted state especially when trying to lose body fat. I am very pleased with this product and would highly recommend it.*

On 4/7/2015 David said...

Great for fasted training
I love this product for fasted training. Just mix a little bit of sugar free lemonade mix in the water with it 20 minutes before workout. The lemonade makes it quite palatable. Great value for the price.*

On 4/7/2015 Marven said...

muscle building 101
Leucine is one of the most important amino acids to have enough of as an athlete of any kind. I started supplementing leucine (5g with every protein shake) and I've noticed that I've been getting stronger and adding mass more consistently.

The product itself is great, and I have no complaints. it came exactly as advertised.

Thanks bulk supplements!*

On 4/6/2015 Ryan said...

Like others have said this was it's difficult to find pure leucine! Thankfully bulksupplements carries it, and its of good quality. Shipping was fast too, I went with standard shipping and it was here in just a few days.
The product itself was excellent, no caking or discoloration. *

On 4/3/2015 scott said...

Great stuff
I've ordered this from other companies and it's come in the form of tiny little flakes. This stuff is a baby-fine powder and mixes up like a dream.*

On 3/31/2015 Sean said...

leucine is essential
i have been looking for a place to get pure leucine that wasnt overpriced and i found bulksupplements. They offer great prices with fast shipping. I am very pleased at the quality of the product. I supplement 5-10 grams of leucine per day since it is the most anabolic out of all the bcaas and i am very happy with the results. i will definitely order another batch soon.*

On 3/9/2015 Jacques said...

Most important BCAA (must have it)
I read a lot about L-Leucine and decided to order it from Bulk Supplements, which was one my greatest ideas. I can see the difference easily. I take about 4 grams in the morning, add it to my protein shake. I can easily say that this product does what it's supposed to do. I can see the muscle growth in the last week. I would recommend this product to anyone who wants to add lean muscle mass and burn the unwanted fat off.
Oh and the delivery was super fast, I got my package in 2 days.*

On 3/4/2015 Mehmet said...

Leucine for fasted training
After doing some research on fasted training, Leucine was recommended to limit increased muscle breakdown.. So I take 1 tablespoon 20 minutes before working out. Leucine is really all you need for your BCAAs if you eat enough protein throughout the day. It mixes well and the price is the best.*

On 1/12/2015 Tom said...

Make your own BCAAs!
After years of searching out overpriced, poorly ratio-ed BCAA blends, I turned to Bulksupplements to make my own. With Leucine being the primary driver of muscle synthesis in any protein source this helps me control just how much of it I'm getting, and makes a solid BCAA supplement much cheaper!*

On 1/8/2015 Jesse said...

Make your own BCAAs!
After years of searching out overpriced, poorly ratio-ed BCAA blends, I turned to Bulksupplements to make my own. With Leucine being the primary driver of muscle synthesis in any protein source this helps me control just how much of it I'm getting, and makes a solid BCAA supplement much cheaper!*

On 1/8/2015 Jesse said...

mass building
Great stuff! Can tell a big difference in energy at the gym.*

On 12/27/2014 boyce said...

super quality
I love leucine and used to order it from a competitor until I heard about Bulksupplements. I cannot get such good quality Product for this unbeatable price.*

On 9/27/2014 Alex Witrthoeft said...

Pure Leucine
I had a hard time finding this through my local health food store and through Whole Foods...this was the easiest and purest thing I found online.*

On 6/23/2014 Montana said...

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