NutraBio 100% Pure L-Leucine: Gluten-Free, Vegan L-Leucine for Muscle Recovery
Product is labeled gluten-free with no added gluten-containing ingredients. No explicit GFCO certification or cross-contact disclosures are provided in the supplied data.
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- 100% pure L-Leucine (unflavored) in a naturally fermented free-form amino acid
- Gluten-free, vegan, non-GMO
- 500 grams provides a large quantity for ongoing use
- Unflavored powder with reported mixing/taste challenges
- Possible clumping and dissolution issues in water
Gluten safety details
Product is labeled gluten-free with no added gluten-containing ingredients. No explicit GFCO certification or cross-contact disclosures are provided in the supplied data.
What to expect
A pure leucine powder intended to support muscle protein synthesis and recovery. Expect around 3 g per serving per some retailer listings, with a flavorless powder that may clump or resist mixing. Suitable for vegan, gluten-free needs per labeling.
- Pre- or post-workout use to support muscle protein synthesis and recovery
- Users seeking flavored or easily mixable supplements; those who dislike unflavored powders
The full guide
What is NutraBio 100% Pure L-Leucine?
NutraBio 100% Pure L-Leucine is a single-ingredient leucine powder marketed as a naturally fermented, free-form amino acid. The product is labeled gluten-free, vegan, and non-GMO, and is sold in a 500-gram container. The marketing emphasizes a pure, filler-free composition with no added ingredients beyond L-Leucine.
Gluten safety and certifications
The product data label indicates gluten-free status and no gluten-containing components. No third-party gluten-free certifications (such as GFCO) are disclosed in the provided sources. There is no explicit cross-contact statement beyond what is listed, so individuals with celiac disease or high sensitivity may wish to verify with the manufacturer if cross-contact concerns are important to them.
Taste, mixability, and user experience
As an unflavored amino acid powder, many users report mixability and taste challenges, with comments about clumping or a difficult dissolution in water. Some reviewers highlight high purity and lack of fillers, but note that the powder can be hard to mix without flavoring or additional mixing aids.
Who it’s for and best use cases
This product is suited for individuals seeking a vegan, gluten-free, non-GMO L-Leucine source to support muscle protein synthesis and recovery, particularly around workouts. The typical recommendation is around a 3 g serving per use, according to retailer copy, though the primary listing does not always specify per-serving size. It is best for those who are comfortable with unflavored powders and willing to mix with flavored beverages to improve palatability.
Value, price, and comparisons
Priced at $32.99 for 500 g, the product offers a large quantity for ongoing use and is described as high-purity and value-for-quality by some reviewers. Compared with other L-Leucine powders or BCAA blends, this option differentiates itself by 100% pure L-Leucine, naturally fermented free-form format, and gluten-free/vegan/non-GMO labeling. The unflavored format may be less convenient for those who prefer flavored supplements or easy mixing.
What shoppers say
💚 People liked
High purity and filler-free composition
Good value for quality and quantity
Perceived effectiveness for recovery and strength for some users
⚠ People flagged
Taste and mixability issues with an unflavored product
Potentially coarse mixing behavior due to pure leucine
Key takeaways
- Pure L-Leucine that is gluten-free, vegan, and non-GMO
- Unflavored powder with potential mixability challenges
- 500 g bottle priced at $32.99; suitable for ongoing use
- No disclosed third-party gluten-free certification in the supplied sources
Evidence gaps for this product:
- No disclosed third-party gluten-free certification (e.g., GFCO) in the verified sources
- Lack of explicit per-serving size on the Amazon page (retailer copy cites 3 g per serving)
- No detailed allergen statement beyond 'gluten free'; no explicit cross-contact disclosures