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55/100
Standard
Six-dimension breakdown
Evidence
14
Formulation
12
Manufacturing
10
Safety
8
Transparency
6
Sustainability
5
Why this scored 55/100
Muscle Faktor's Iron Strips are a quick-dissolving oral strip format delivering iron plus co-factor nutrients involved in red blood cell formation. Oral strip delivery has practical advantages (fast onset, no pill fatigue, portable) but also constraints (mass limit per strip caps the deliverable elemental iron; some absorption may be sublingual which changes the pharmacokinetics from swallowed iron). Iron's evidence base is unchanged from the mineral concentrate SKUs — iron deficiency anaemia is the world's most common nutrient deficiency but iron loading is harmful in men and postmenopausal women without deficiency. Description doesn't surface elemental iron per strip. Same contraindications and safety cautions apply — this should not be a self-directed default supplement. Standard tier on real ingredient held back by same contraindications and dose opacity.
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.
FAQ data has not been generated for this product yet. See the site FAQ for general questions.
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.
Every VSF-related metafield surfaced verbatim. Nothing hidden. If you spot data that looks wrong, let us know.
VSF score
55 / 100
Tier
Standard
Category
Supplements
Subcategory
vitamins micronutrients
Last scored
Third-party certifications
None on record at time of scoring
Vendor
Muscle Faktor
Product type
Vitamins & Minerals
Tags
Muscle Faktor, 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.
