Optimum Nutrition
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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 →
'Metabolic Support Capsules' is a structure-function label that reveals nothing about the actives — Perfecsy is a small unknown brand with no manufacturing provenance, and vague metabolic-support blends typically contain low-dose chromium, green tea extract, and cinnamon at sub-studied levels. Without a per-active mg breakdown it's impossible to relate the formula to any specific RCT (e.g., Yin 2008 for berberine at 500 mg tid, Cavallini 2014 for chromium picolinate). This is a Rejected-tier product primarily on transparency and provenance grounds. Would move to Standard only with full per-active mg disclosure and a specific evidence-backed active at studied dose.
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.
Auto-generated from Vyvata's scoring data for this product. For general questions about the store (shipping, returns, wholesale), see the site FAQ.
Metabolic Support Capsules is a product from Perfecsy, categorized under Weight management & metabolic health in the Supplements vertical. It is scored on the Vyvata Scoring Framework — an independent 6-dimension rubric applied uniformly to every product Vyvata lists.
48/100 overall — Rejected tier (0–49 band). Per-dimension breakdown: Safety 55, Evidence 50, Formulation 48, Manufacturing 45, Sustainability 45, Transparency 42. Scored as of 2026-08-24.
'Metabolic Support Capsules' is a structure-function label that reveals nothing about the actives — Perfecsy is a small unknown brand with no manufacturing provenance, and vague metabolic-support blends typically contain low-dose chromium, green tea extract, and cinnamon at sub-studied levels. Without a per-active mg breakdown it's impossible to relate the formula to any specific RCT (e.g., Yin 2008 for berberine at 500 mg tid, Cavallini 2014 for chromium picolinate). This is a Rejected-tier product primarily on transparency and provenance grounds. Would move to Standard only with full per-active mg disclosure and a specific evidence-backed active at studied dose.
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 42/100 (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.
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.
Would move to Standard only with full per-active mg disclosure and a specific evidence-backed active at studied dose.
The top-ranked weight management & metabolic health product in the Vyvata catalog is currently Thorne Berberine Dietary Supplement 1000 mg 60 Capsules at 80/100. See the full ranked list of 218 scored products in this subcategory at https://vyvata.com/pages/best-weight-management-and-metabolic-health-supplements-ranked.
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.
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=Perfecsy%20Metabolic%20Support%20Capsules),Google(https://www.google.com/search?q=Perfecsy%20Metabolic%20Support%20Capsules+reviews),Reddit(https://www.reddit.com/search/?q=Perfecsy%20Metabolic%20Support%20Capsules%20review),andTrustpilot(https://www.trustpilot.com/search?query=Perfecsy%20Metabolic%20Support%20Capsules).Vyvatadoesnotaggregate,republish,orlicensethosethird-partyreviews.
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.
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
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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