Optimum Nutrition
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Cell Shield
Cell Shield
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Regular price
$59.00 USD
Regular price
Sale price
$59.00 USD
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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 →
58/100
Rejected
Six-dimension breakdown
Evidence
55
Formulation
58
Manufacturing
62
Safety
65
Transparency
52
Sustainability
55
Why this scored 58/100
BioStack Cell Shield positions as an antioxidant / cellular-protection blend. BioStack's brand credibility as a biohacker-focused DTC operator with a genuine flagship (GlyNAC+) provides some baseline formulation credibility, but 'Cell Shield' as a product name and positioning language is generic antioxidant-blend territory where the specific formulation choices matter far more than the brand halo. Without a full quantitative Supplement Facts panel disclosed at title level — per-ingredient milligrams for each antioxidant compound (astaxanthin, resveratrol, CoQ10, NAC, glutathione precursors, or whatever the blend actually contains), plus standardization data for any botanical extracts — the product cannot be scored above the Rejected/Standard boundary. Antioxidant blends are a category where clinical evidence tends to be weak for a general 'oxidative stress reduction' claim in healthy adults (the ATBC and CARET trials famously showed harm from beta-carotene supplementation in some populations), so the burden of proof for a blended antioxidant product is high. Marks off for insufficient title-level disclosure to evaluate dose adequacy, no publicly cited outcome evidence specific to this formulation, and the intrinsic weakness of the 'antioxidant support' category unless targeting a specific validated compound at a studied dose.
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.
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.
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
- 58 / 100
- Tier
- Rejected
- Category
- Supplements
- Subcategory
- immune antioxidants
- Last scored
- Third-party certifications
- None on record at time of scoring
- Vendor
- BioStack
- Product type
- Vitamins & Supplements
- Tags
- BioStack, 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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