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💥 Elevate your gains with pure, clean, and certified L-Leucine power!
Nutricost Pure L-Leucine Powder offers 500 grams of high-quality, unflavored L-Leucine, a primary branched-chain amino acid essential for muscle growth. This vegan, non-GMO, and gluten-free supplement delivers 5 grams per serving and is produced in NSF certified, GMP compliant, FDA registered facilities, ensuring premium quality and safety for health-conscious professionals.



| ASIN | B01BCNGPCU |
| Age Range Description | Adult |
| Allergen Information | Gluten Free, Soy Free |
| Best Sellers Rank | #10,366 in Health & Household ( See Top 100 in Health & Household ) #21 in Branched Chain Amino Acids Nutritional Supplements |
| Brand | Nutricost |
| Brand Name | Nutricost |
| Color | Ice |
| Container Type | Tub |
| Customer Reviews | 4.4 out of 5 stars 2,941 Reviews |
| Diet Type | Vegan |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Global Trade Identification Number | 00810014679341 |
| Item Dimensions | 5.12 x 4.53 x 6.69 inches |
| Item Form | Powder |
| Item Weight | 1.2 pounds |
| Manufacturer | Nutricost |
| Manufacturer Part Number | NTC046101 |
| Material Features | Gluten Free, Vegetarian |
| Material Type Free | Non-GMO and Gluten Free |
| Model Name | NTC046101 |
| Model Number | NTC046101 |
| Number of Items | 1 |
| Primary Supplement Type | Branched-Chain Amino Acids (BCAA) |
| Product Benefits | Muscle Growth |
| Recommended Uses For Product | Muscle Growth |
| Special Ingredients | L-Leucine |
| Specific Uses For Product | Personal, Supplementation |
| Supplement Formulation | Individual Supplement |
| Total Servings Per Container | 100 |
| UPC | 810014679341 |
| Unit Count | 17.9 Ounce |
M**Y
Great product for muscle protein synthesis and recovery
I was very impressed with the results of using Nutricost Unflavored L-Leucine. I started using it as part of recovery from knee replacement surgery. It claims it provides benefits in muscle protein synthesis and recovery and I certainly experienced that as well as improvements in other muscle groups. As an older adult I am concerned with retaining strength and I think this product helps with that goal. I use it in my smoothies and in milk I mix in with my cereal. It mixes well and easily. and do not notice any altering of taste. However, when in a hurry and I use it just mixed in water it does have a slightly bitter taste but certainly something I can live with.
L**I
Tastes like burnt dog doo, works great!
Smells like terrible cheese and a toot, and has a strong after taste of bitter burnt coffee grounds, but mixed with Sunny D it’s really not bad. Seems to work well for being the most important of the BCAA stack. I’ll order again for sure.
A**R
Great price and product
The product seems good!
R**N
Brutal Taste, Beautiful Gains – Worth Every Grimace
TL;DR: Tastes like burnt coffee beans and regret, but if you want real muscle retention and recovery, this stuff works. I mix it post-workout with creatine and 16 oz of water. It’s pure, effective, and worth the grimace. Suck it up, buttercup. Let’s get one thing straight: this stuff tastes like burnt coffee beans had a bitter divorce with a charred tire—and somehow they both lost custody. If you’re expecting a tropical fruit flavor, walk away. But if you’re chasing real results and not some sugar-coated placebo, Nutricost’s L-Leucine delivers. I drink this post-workout, mixing one scoop with creatine and about 16 oz of water. Taste-wise? It’s rough. But it mixes well, no clumps, and hits your system like a freight train full of gains. Suck it up, buttercup—the results are worth the momentary mouth punishment. Now let’s talk results: faster recovery, better muscle retention (especially cutting), and noticeable post-lift performance improvements. Leucine is the MVP of BCAAs for muscle protein synthesis, and this pure, no-BS version nails it. Bonus: no fillers, no weird additives, just pure leucine doing exactly what you want it to do—helping you hang onto hard-earned muscle like it owes you money. Taste is a 2/10. Results? 10/10. You don’t buy this for a spa day—you buy it because it works.
M**E
Game changer
I'm in my 60s. I've been taking creatine, TMG, HMB, AKG, and you name it for years, but had gotten kind of stuck, as far as muscle growth. I noticed an immediate difference when I started taking this twice per day (I understand it's ok to take up to 15g per day). It tastes horrible, but it works. Despite the taste, I prefer the powder form to avoid fillers and such. Clumping is minimal and doesn't happen until I'm near the bottom of the jar. It dissolves quickly in water. I just mix it with the rest of my stack and throw it back. This is now a permanent part of my stack.
L**.
Time will tell / 02/27/2026 great product. Thank you
This is my second jar. 80+ years old, and I am able to get up and down off the potty, I do 15 squats in front of my kitchen sink every day. it allows me to get a little muscle, and I do not like the taste, but I take it daily and enjoy the effects. I take if before or after my Tichi classes at VA. I can go down the basement steps backward and with no problems [ I go down the stairs backwards, so I do not fall down. I recommend this bad tasting powder. I say it joking. do not change a thing. works great.
J**N
No bad taste when mixed with hot black coffee
I've only been using the product for 2 days, but here's all I have to share to date. I read several reviews where people said the product tasted bad and tasted like burnt coffee. Well that might be true, but what I'm doing is mixing 1/2 of a scoop each morning in my coffee. I haven't noticed any taste difference at all. I only drink black drip coffee. I have noticed some of the product not mixing leaving white specks floating in the coffee, but most of it mixes up very well. I'll do a review again after trying the product for 14 days, to see if I notice any change in my energy, or changes in my weight or workouts, sleep etc. My first day I seemed to have more energy while exercising at the gym.
G**N
If you can handle the taste, this may be for you…
There was a battle of wills between the L-Leucine powder and myself, and I lost. The product itself dissolved well, and it was as described. I’m sure that this would be a top quality supplement if you are looking for additional L-Leucine in your diet, but I could not get past the taste. I tried dissolving it in water, soy milk, and added it to my normal protein shake, but still tapped out. It could probably handle the initial onslaught of the foul tasting substance, but the after taste has amazing lasting power that I couldn’t get past. I love most Nutricost, but if I try again, it’ll definitely be in pill form. Nutricost, if you read this review, please fix the flavor.
C**A
Tastes terrible
I do not like the taste of this - tastes like chemicals
A**S
Producto en buen estado
Muy buen producto llegó bien y en buen estado lo que se esperaba
A**I
Good
Good
R**D
Bueno
Bueno
A**.
USENLO
BIEN
Trustpilot
3 weeks ago
5 days ago