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Free shipping over $50No proprietary blends · fully disclosed labelsThird-party tested · GMP certified facility

Customer Reviews

4.1 out of 5 · 40 reviews

Reviews are a representative sample of real customer reviews aggregated from public data and matched to this product; written reviews are representative samples, not verified individual purchases.

4.1

out of 5

Get ready for chronic illness!

I have a habit of trying interesting supplements, and this product caused me to develop several severe autoimmune diseases. Quitting the supplement did not reverse the symptoms.<br /><br />I took the product twice daily for 4 weeks, and I was originally impressed that it could control hunger. I was interested in the role of leucine as an possible appetite suppressant. I developed several symptoms in the 3rd and 4th week (rash, swelling, lump in throat, and benign positional paroxysmal vertigo.)<br /><br />1) A red rash on the interior corners of my eyes, on the upper eyelid and below. Eventually, I looked like a raccoon, and it took me 2 years to get the diagnosis of a &#34;heliotrope rash.&#34; I also have muscle weakness and rashes on my knuckles. Ultimately, this was diagnosed as dermatomyositis.<br /><br />2) Eyelid swelling and dry eyes (as well as no more ear wax) typical of Sjogren's syndrome.<br /><br />3) Lump in throat and difficulty swallowing. I gained 20 pounds in 2 years without changing my dietary habits. Now I'm diagnosed with Hashimoto's thyroiditis.<br /><br />4) Benign positional paroxysmal vertigo, or BPPV. This is what ultimately led me to stop taking the leucine in the 4th week. I developed vertigo so bad that I could not leave my bed.<br /><br />Three autoimmune diseases. I WISH WISH WISH with all my heart that I had never touched this product. These symptoms came on quickly while I was taking the product, and I've spent 2 years trying to undo the damage.

Cara W.·July 12, 2017·10 found this helpful

Amazing supplement that gives you great workout stamina and energy!

Seriously Love this supplement! It supercharges your workout session, and gives you a great feeling for hours after you take it. When my supply runs out I get nervous and run to GNC to buy Leucine but it never compares to the feeling I get from this particular brand. My only quip is that they are often on back order and the shipping is slow, but the product is top notch!

Mia W.·February 26, 2016·5 found this helpful

Correctly labeled from a reliable manufacturer.

It is hard to find Leucine supplements. Correctly labeled with good expiry date. Do I feel any different? No. I am taking in combination with my metformin as there is some data to suggest that the combination may be better than metformin alone

Sara E.·October 3, 2015·4 found this helpful

More muscle

Great

Chloe F.·March 9, 2019·1 found this helpful

Three Stars

Couldn't tell any difference taking 2g on empty stomach during intermittant fasting for a month

Niko D.·October 10, 2016·1 found this helpful

Five Stars

Great product and this company is always good

Dean S.·March 5, 2016·1 found this helpful

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