In Stock
NOW Foods

Sports, L-Leucine Powder, 9 oz (255 g)

4.6 · 177 reviews
3,121 ₽

Amino Acids Mixes Easily Builds Lean Tissue Free Form Informed-Sport.Com Trusted by Sport A Dietary Supplement Informed-Choice.Org Trusted by Sport Steroid Free Vegan Kosher Non-GMO GMP Quality Assured L-Leucine is one of the three branched chain amino acids (BCAAs) that is critical in muscle tissue structure. Among the BCAAs, Leucine is unique in its role as a signaling molecule that helps to regulate optimal skeletal muscle protein synthesis in normal tissues. In addition, it helps to maintain already healthy glucose metabolism and insulin function, and may help to promote the use of fat for energy. Studies suggest that L-Leucine, in conjunction with adequate dietary protein, may help to build and maintain lean tissue and optimize body composition. NOW® Sports Leucine Powder is instantized for easy mixing in water, beverages or smoothies. No clumping.

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Amino Acids Mixes Easily Builds Lean Tissue Free Form Informed-Sport.Com Trusted by Sport A Dietary Supplement Informed-Choice.Org Trusted by Sport Steroid Free Vegan Kosher Non-GMO GMP Quality Assured L-Leucine is one of the three branched chain amino acids (BCAAs) that is critical in muscle tissue structure. Among the BCAAs, Leucine is unique in its role as a signaling molecule that helps to regulate optimal skeletal muscle protein synthesis in normal tissues. In addition, it helps to maintain already healthy glucose metabolism and insulin function, and may help to promote the use of fat for energy. Studies suggest that L-Leucine, in conjunction with adequate dietary protein, may help to build and maintain lean tissue and optimize body composition. NOW® Sports Leucine Powder is instantized for easy mixing in water, beverages or smoothies. No clumping.

Customer reviews

5.0
verified purchase
Game changer for my protein intake!

Love NOW’s quality ingredients as they’ve always tended are always 3rd party tested! Tested adding 3-5g per day in my workout drink and apparently lowered my daily protein requirements. I’m presently 65kg or 145lbs and intake 100g of protein daily but lowered my intake to 90g and added Leucine and found my overall weight didn’t fluctuate more than 1-2lbs per week which is good for me as I’m trying to gain weight for overall body composition / diet. Muscle feel more energy during training as a side benefit too. Package size lasts about 30 days of daily usage for me.

4/26/2025
5.0
verified purchase
Protein Synthesis and Muscle Recovery

I've been using Leucine for a while now, and it's been really beneficial for my muscle recovery and growth. I usually take one serving daily, and I've noticed it helps me recover faster after workouts and supports muscle protein synthesis. What I like about this supplement is its quality; it's pure leucine without any unnecessary additives. It's become a key part of my fitness regimen, helping me achieve my muscle-building goals.

4/4/2024
5.0
verified purchase
Clean and impactful!

A key amino acid for women who train- especially if one eats limited animal products.

9/25/2025
5.0
verified purchase
Muscles build

Tastes good, healthy ingredients. Packaging is good, perfect for diet and fine quality

6/26/2025
5.0
verified purchase
Great

I'm a big fan of Now products. I mix with a protein powder before the gym

6/19/2025
5.0
verified purchase
protein

"I've been shopping on iHerb for a while now, and it's been a consistently great experience. They offer a vast range of natural health products, from supplements to skincare, and I love that they carry high-quality brands at affordable prices. The website is easy to navigate, and I appreciate the detailed product descriptions and customer reviews, which help me make informed choices. Shipping has always been prompt, and my orders arrive well-packaged. Plus, their rewards program is a nice bonus! Highly recommend iHerb for anyone looking to shop health-conscious products online."

3/14/2025
5.0
verified purchase
Its worth buying

Its good. Add powder and go. Worth buying. Recommend. We thought that we would try this. And happy that we did thank you. The quality is great.The size was great.It had the protein it shipped on time.It's a great benefit. It's good for diet training, muscle and energy.

6/21/2026
5.0
verified purchase

I add this pure L-Leucine powder to my post-workout shake for targeted muscle recovery support, and it's been very effective. The unflavored powder mixes in completely without any grit or noticeable taste. I’ve definitely noticed less muscle soreness and a faster bounce-back between my training sessions. It’s a no-frills, high-quality product that does exactly what I need it to.

1/2/2026
5.0
verified purchase
great!

the quality is honestly solid – it’s pure l-leucine, no random filler ingredients in the composition. the package is usually a decent size, lasts long if you use it right. taste is pretty neutral (a little bitter if you just mix with water, but not too bad). big benefit: helps with muscle recovery + training energy, especially if you’re active and want to keep lean mass. age-wise, it’s mostly aimed at adults doing consistent training, not really for younger teens. overall: good quality, clear use, strong benefit for workout performance, but you gotta combine it with proper nutrition.

9/6/2025
5.0
verified purchase

I started adding this leucine powder to my post-workout shake to aid with muscle recovery, and I'm genuinely impressed with the results. It mixes in completely without any grittiness or weird aftertaste, which is a huge win for an unflavored powder. I've noticed I'm significantly less sore the day after a heavy lifting session, and my muscles feel like they bounce back faster. It's become an essential part of my routine that I don't see myself skipping.

8/29/2025