Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules
Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules
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The full picture
Everything Vyvata knows about this product — the score, the evidence, the FAQ, and where else to find shopper reviews. No hidden data. Every vendor is scored on the same published rubric — no brand can pay for placement. Read the rubric →
Six-dimension breakdown
Why this scored 72/100
500mg per capsule L-glutamine, a modest per-cap dose (clinical trials for gut/IBS use 5g+/day per Zhou 2019 RCT, requiring 10 caps). Ingredient quality and Pure Encaps GMP standards are excellent; users need to multi-dose for therapeutic effect.
Evidence & sources
The Vyvata score's Evidence dimension measures the quality of published RCT support for a product's active ingredients at the label dose. Our source hierarchy: double-blind RCTs in MEDLINE-indexed journals > single-blind RCTs > open-label trials > observational studies > mechanism papers > N=1 case studies (anecdotes). Predatory journals and manufacturer-authored studies without independent replication are weighted down.
Product-specific evidence citations for this item are embedded in the analysis text on the "Analysis" tab. For the full framework and evidence hierarchy, see the methodology page.
How to read the Evidence dimension
- 80–100: Multiple double-blind RCTs in indexed journals directly testing this product OR the exact ingredients at the exact dose.
- 60–79: Single double-blind RCT + supporting ingredient literature at the studied dose.
- 40–59: Open-label trials + ingredient literature; no product-specific double-blind evidence.
- 20–39: Ingredient literature only; no product-specific trials or trials in predatory venues.
- 0–19: No credible evidence base or unverifiable claims.
Frequently asked questions
Auto-generated from Vyvata's scoring data for this product. For general questions about the store (shipping, returns, wholesale), see the site FAQ.
What is Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules?
Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules is a product from Pure Encapsulations, categorized under Gut health & digestive support in the Supplements vertical. It is scored on the Vyvata Scoring Framework — an independent 6-dimension rubric applied uniformly to every product Vyvata lists.
How does Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules score on the Vyvata rubric?
72/100 overall — Verified tier (70–84 band). Per-dimension breakdown: Manufacturing 84, Safety 84, Transparency 82, Formulation 76, Evidence 65, Sustainability 60. Scored as of 2026-07-31.
Why did Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules score in the Verified tier?
500mg per capsule L-glutamine, a modest per-cap dose (clinical trials for gut/IBS use 5g+/day per Zhou 2019 RCT, requiring 10 caps). Ingredient quality and Pure Encaps GMP standards are excellent; users need to multi-dose for therapeutic effect.
What are the strongest and weakest aspects of this product?
Strongest: Manufacturing at 84/100 (third-party testing, GMP compliance, and facility audit status) and Safety at 84/100 (adverse-event profile, interaction risk, and dose ceiling). Weakest: Evidence at 65/100 (quality of published RCT support for the active ingredients at the label dose) and Sustainability at 60/100 (sourcing practices, packaging, and corporate practice). All six dimensions feed the overall Vyvata score; a weakness on any one dimension pulls the overall down proportionally.
Is Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules third-party tested?
No third-party certifications (NSF, USP, ConsumerLab, or equivalent) were on record at the time of scoring. This affects the Manufacturing dimension score. The manufacturer may test internally or have obtained certification more recently — check the current product label for the most up-to-date information.
Are there higher-scoring alternatives to Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules?
The top-ranked gut health & digestive support product in the Vyvata catalog is currently Microbiome Labs MegaSporeBiotic Probiotics for Women & Men at 75/100. See the full ranked list of 155 scored products in this subcategory at https://vyvata.com/pages/best-gut-health-and-digestive-support-supplements-ranked.
What does the Vyvata score mean?
The Vyvata Scoring Framework rates every listed product 0–100 across six dimensions: Evidence, Formulation, Manufacturing, Safety, Transparency, and Sustainability. Tier bands: Elite 85–100 (top-tier evidence + formulation + manufacturing), Verified 70–84 (strong on most dimensions), Standard 50–69 (solid but with weaknesses called out), Rejected 0–49 (specific failures documented). Rejected products remain listed with reasons. Full methodology at https://vyvata.com/pages/methodology.
Where can I read customer reviews for Pure Encapsulations L-Glutamine 500 Mg, 90 Capsules?
The Vyvata score measures product integrity against a published rubric, not customer sentiment. For customer reviews and community discussion, search external platforms directly: Amazon (https://www.amazon.com/s?k=Pure%20Encapsulations%20Pure%20Encapsulations%20L-Glutamine%20500%20Mg%2C%2090%20Capsules),Google(https://www.google.com/search?q=Pure%20Encapsulations%20Pure%20Encapsulations%20L-Glutamine%20500%20Mg%2C%2090%20Capsules+reviews),Reddit(https://www.reddit.com/search/?q=Pure%20Encapsulations%20Pure%20Encapsulations%20L-Glutamine%20500%20Mg%2C%2090%20Capsules%20review),andTrustpilot(https://www.trustpilot.com/search?query=Pure%20Encapsulations%20Pure%20Encapsulations%20L-Glutamine%20500%20Mg%2C%2090%20Capsules).Vyvatadoesnotaggregate,republish,orlicensethosethird-partyreviews.
Customer reviews
Reviews on other platforms
The Vyvata score measures product integrity against a published rubric, not customer sentiment. Vyvata does not aggregate, republish, or license third-party reviews — the links below open search pages on their respective platforms.
All the data we have on this product
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
- VSF score
- 72 / 100
- Tier
- Verified
- Category
- Supplements
- Subcategory
- gut digestive
- Last scored
- Third-party certifications
- None on record at time of scoring
- Serving size
- 500 mg
- Vendor
- Pasteur Pharmacy
- Product type
- Vitamins & Supplements
- Tags
- Pasteur Pharmacy, Shopify Collective
Every score is set from the published rubric, audit-logged, and rescored whenever new evidence emerges (published trials, updated labels, third-party testing releases). Every vendor is scored on the same criteria — no pay-to-play. See our editorial-independence disclosure for the full policy, including brands with an editorial relationship to this site.
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