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Solgar L-Tyrosine 500mg 100 Vegetables Capsules
Solgar L-Tyrosine 500mg 100 Vegetables Capsules
Brand ownership disclosure
Nestlé Health Science
Nestlé S.A. (SIX: NESN)
Acquired 2021 via $5.75B Bountiful deal — Nestlé is keeping Solgar (premium tier)
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Regular price
$24.60 USD
Regular price
Sale price
$24.60 USD
Shipping calculated at checkout.
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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 →
65/100
Standard
Six-dimension breakdown
Evidence
68
Formulation
65
Manufacturing
78
Safety
72
Transparency
65
Sustainability
55
Why this scored 65/100
Solgar L-Tyrosine 500mg. L-Tyrosine is a dopamine/norepinephrine precursor with real evidence for cognitive performance under stress (Deijen 1999 military cold-stress trials; Colzato 2013 working memory) at 500-2000mg doses. 500mg per cap allows flexible dosing. Solgar manufacturing quality. Held below Verified by (1) trial-effective doses are typically 500-2000mg pre-stressor; single-cap of 500mg may be sub-therapeutic for some use cases; (2) no third-party assay. Would move to Verified 70+ with higher-dose SKU + third-party COA.
Last scored: Full rubric →
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 Solgar L-Tyrosine 500mg 100 Vegetables Capsules?
Solgar L-Tyrosine 500mg 100 Vegetables Capsules is a product from Solgar, categorized under Cognitive health & nootropics 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 Solgar L-Tyrosine 500mg 100 Vegetables Capsules score on the Vyvata rubric?
65/100 overall — Standard tier (50–69 band). Per-dimension breakdown: Manufacturing 78, Safety 72, Evidence 68, Formulation 65, Transparency 65, Sustainability 55. Scored as of 2026-08-24.
Why did Solgar L-Tyrosine 500mg 100 Vegetables Capsules score in the Standard tier?
Solgar L-Tyrosine 500mg. L-Tyrosine is a dopamine/norepinephrine precursor with real evidence for cognitive performance under stress (Deijen 1999 military cold-stress trials; Colzato 2013 working memory) at 500-2000mg doses. 500mg per cap allows flexible dosing. Solgar manufacturing quality. Held below Verified by (1) trial-effective doses are typically 500-2000mg pre-stressor; single-cap of 500mg may be sub-therapeutic for some use cases; (2) no third-party assay. Would move to Verified 70+ with higher-dose SKU + third-party COA.
What are the strongest and weakest aspects of this product?
Strongest: Manufacturing at 78/100 (third-party testing, GMP compliance, and facility audit status) and Safety at 72/100 (adverse-event profile, interaction risk, and dose ceiling). Weakest: Transparency at 65/100 (dose disclosure vs proprietary blends, and honesty of marketing claims) and Sustainability at 55/100 (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 Solgar L-Tyrosine 500mg 100 Vegetables 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.
What would move Solgar L-Tyrosine 500mg 100 Vegetables Capsules to a higher tier?
Would move to Verified 70+ with higher-dose SKU + third-party COA.
Are there higher-scoring alternatives to Solgar L-Tyrosine 500mg 100 Vegetables Capsules?
The top-ranked cognitive health & nootropics product in the Vyvata catalog is currently Nordic Naturals Ultimate Omega 2X – High-Potency Fish Oil | 2150 mg EPA & DHA | Lemon Flavor, 120 Softgels at 87/100. See the full ranked list of 212 scored products in this subcategory at https://vyvata.com/pages/best-cognitive-health-and-nootropics-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 Solgar L-Tyrosine 500mg 100 Vegetables 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=Solgar%20Solgar%20L-Tyrosine%20500mg%20100%20Vegetables%20Capsules),Google(https://www.google.com/search?q=Solgar%20Solgar%20L-Tyrosine%20500mg%20100%20Vegetables%20Capsules+reviews),Reddit(https://www.reddit.com/search/?q=Solgar%20Solgar%20L-Tyrosine%20500mg%20100%20Vegetables%20Capsules%20review),andTrustpilot(https://www.trustpilot.com/search?query=Solgar%20Solgar%20L-Tyrosine%20500mg%20100%20Vegetables%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
- 65 / 100
- Tier
- Standard
- Category
- Supplements
- Subcategory
- cognitive nootropics
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- Pasteur Pharmacy
- Product type
- Dietary 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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