Optimum Nutrition
1
/
of
10
Zen Energy Green Tea & Coffee
Zen Energy Green Tea & Coffee
No reviews
No reviews
Regular price
$29.99 USD
Regular price
Sale price
$29.99 USD
Shipping calculated at checkout.
Quantity
Couldn't load pickup availability
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 →
45/100
Rejected
Six-dimension breakdown
Evidence
50
Formulation
50
Manufacturing
45
Safety
55
Transparency
40
Sustainability
45
Why this scored 45/100
Sachet delivers 53mg caffeine + 180mg catechins + 30mg chlorogenic acid, doses are stated but the label explicitly calls the tea/coffee ratio a 'proprietary blend'. Green tea catechins at 180mg is a modest dose vs the 400-600mg EGCG in most metabolic studies (Hursel 2011 meta).
Auto-fail rule triggered: Proprietary blend hides dose.
The product uses a proprietary or 'proprietary blend' formulation that hides per-ingredient dosages. Without knowing the amount of each active ingredient, users cannot verify whether the blend meets RCT-supported effective doses. See the full rubric →
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 Zen Energy Green Tea & Coffee?
Zen Energy Green Tea & Coffee is a product from Crane Wellness, categorized under Energy & metabolic 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 Zen Energy Green Tea & Coffee score on the Vyvata rubric?
45/100 overall — Rejected tier (0–49 band). Per-dimension breakdown: Safety 55, Evidence 50, Formulation 50, Manufacturing 45, Sustainability 45, Transparency 40. Scored as of 2026-08-24.
Why did Zen Energy Green Tea & Coffee score in the Rejected tier?
Sachet delivers 53mg caffeine + 180mg catechins + 30mg chlorogenic acid, doses are stated but the label explicitly calls the tea/coffee ratio a 'proprietary blend'. Green tea catechins at 180mg is a modest dose vs the 400-600mg EGCG in most metabolic studies (Hursel 2011 meta).
What are the strongest and weakest aspects of this product?
Strongest: Safety at 55/100 (adverse-event profile, interaction risk, and dose ceiling) and Evidence at 50/100 (quality of published RCT support for the active ingredients at the label dose). Weakest: Sustainability at 45/100 (sourcing practices, packaging, and corporate practice) and Transparency at 40/100 (dose disclosure vs proprietary blends, and honesty of marketing claims). All six dimensions feed the overall Vyvata score; a weakness on any one dimension pulls the overall down proportionally.
Is Zen Energy Green Tea & Coffee 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.
Why was this product auto-rejected?
This product triggered the Vyvata auto-fail rule "proprietary_blend_hides_dose", which places it in the Rejected tier regardless of its scores on other dimensions. See the full explanation above and the methodology page for the current list of auto-fail rules.
Are there higher-scoring alternatives to Zen Energy Green Tea & Coffee?
The top-ranked energy & metabolic support product in the Vyvata catalog is currently Cordyceps Dual Extract Tincture at 71/100. See the full ranked list of 205 scored products in this subcategory at https://vyvata.com/pages/best-energy-and-metabolic-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 Zen Energy Green Tea & Coffee?
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=Crane%20Wellness%20Zen%20Energy%20Green%20Tea%20%26%20Coffee),Google(https://www.google.com/search?q=Crane%20Wellness%20Zen%20Energy%20Green%20Tea%20%26%20Coffee+reviews),Reddit(https://www.reddit.com/search/?q=Crane%20Wellness%20Zen%20Energy%20Green%20Tea%20%26%20Coffee%20review),andTrustpilot(https://www.trustpilot.com/search?query=Crane%20Wellness%20Zen%20Energy%20Green%20Tea%20%26%20Coffee).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
- 45 / 100
- Tier
- Rejected
- Category
- Supplements
- Subcategory
- energy metabolic
- Last scored
- Auto-fail rule
proprietary_blend_hides_dose- Third-party certifications
- None on record at time of scoring
- Vendor
- Crane Wellness
- Product type
- powder
- Tags
- Crane Wellness, 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.
Share
