Free Form L-Leucine, 500 mg, 240 Capsules

In 2 weeks on Leucine I experienced rapid weight loss while eating non-diet foods, as much as I wanted, and walking and going up and down the stairs normally as only exercise. I had tremendous energy the first week, and felt my muscles becoming firm, this after having been put on steroids 3 years ago for 5 months, and that weight is near impossible to lose (almost none of my usual supplements helped). Well, on Leucine, I dropped 2 sizes in 2 weeks! This has been the easiest, most effortless and most rapid weight loss of my entire life. However right away I experienced some tremendous side effects: the first one was a shrill high-pitched noise inside my ears that simply would not stop. (I quit Leucine 2 days ago and just now realized the permanent maddening noise is gone.) That was on 1 pill per day (500mg). After about 1 week I decided I wanted more weight loss: I took 2 caps per day (1000mg). In addition to the ringing in my ears, I also experienced unbearable fatigue and hypersomnia: I found myself sleeping 2 shifts per 24 hrs, 8 and 9 hrs respectively. It was impossible for me to stay conscious. Also dealt with extreme anger (flying off he handle). Everyone is different, I will add that I'm female and not a body-builder, with pre-existing health problems. Perhaps lifting weights would metabolize the leucine faster and less the side effects? Also the first week I was eating a lot of protein (meat & eggs) and my understanding is the protein supplies the other BCAAs (isoleucine and valine) needed to balance out the leucine, so maybe the reason why I had less side effects during week 1. I did read that leucine inhibits tryptophan, which regulates serotonin in the brain but I could not find anything online about these side effects, except for the anger. I don't know if the side effects would have been less at 2 caps per day if I'd eaten protein daily, since I was unable to go grocery shopping due my state of inertia, I found myself without meat or eggs. I deduct only 1 star for the side effects but if I had to do it again, you bet! Losing the weight I put in 8 months in only 2 weeks was well worth it. I will have another go at leucine in a few weeks and will make sure to only take 1 cap per day and have plenty of meat during the time I'm on it. Hope this helps someone out there.

I take eight of these along with six glutamine tablets or capsules immediately post workout. I used to try to take Leucine as a powder (cheaper) but it's really pretty awful tasting so I'm happier with the capsules. There is research that indicates that this amino along with the glutamine are helpful for recovery, and I need as much as I can get (naturally) so I'm happy this is reasonably priced and easily tolerated.

I take 4 of these L-Leucine capsules each morning on an empty stomach since it is an amino acid. I take it to help increase my muscle mass. it seems to be helping. I do resistance exercises 3-4 times weekly and I now see improvement since starting this about 2 months ago. I will continue to buy it. Source Naturals has always had good quality supplements.

Packaged with enough capsules so I do not have to order as often. One of our favorites.

Source Naturals is a reputable brand and this L-Leucine does not disappoint. 240 capsules at 500mg is great value. Pure ingredient with no fillers. Essential amino acid for muscle protein synthesis. Easy to swallow and no aftertaste.

Great product try it you can trust I Herb they have great quality products and you're reassured. You're getting the real thing. Clean ingredients has always important to me. I highly recommend to give this a try.

Quality is super! The ingredients are great! Size arranged! What you need! Performance is felt! the product arranged, perfectly packed, the effect is definitely there! I will order more! Just as quickly delivered

Seems like a clean leucine, didnt notice much but we already take why protein

Very effective in helping rebuild my muscle mass which I have been losing since I turned 70.

has helped me feel better overall, i will be reordering and reccomend