Is Promino Legit? — July 2026
United StatesVisit Promino ↗ · 10% offPromino has a mixed reputation with a quality score of 5/10. Some trust signals are present but others are lacking.
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Independently fact-checked
How the score breaks down
Promino scored across our four rubric factors — COA practices (40%), reputation, transparency, and operations (20% each).
Weighted factor result: 4.2/10. Final published score: 5/10. This editorial adjustment is disclosed because the final score differs from the weighted result; for Promino, verified COA evidence sets the published floor.
Trust signals
At a glance
COA & lab verification
Promino product pages claim independent HPLC and mass-spectrometry testing and provide a visible 'View COA' area. However, unrelated product pages currently repeat the exact same displayed result — 99.93% purity, lot A0112, labeled 20mg, actual 22.56mg, tested February 4, 2026 — including products with different compounds and labeled masses. That makes the live page-level evidence non-product-specific and prevents PeptidePrices from treating it as a verified certificate for any individual SKU. Rating remains provisional until Promino publishes distinct batch reports with named labs and report-level verification. The site provides a 60-day money-back guarantee and card checkout, but those operational strengths do not substitute for batch-specific lab evidence. PeptidePrices is an affiliate partner; the relationship does not affect the rating.
Our verdict on Promino
Promino looks operationally strong: the catalog is clear, payment is reversible by card, shipping terms are straightforward, and the 60-day guarantee is better than many new vendors offer.
The current COA implementation is the blocker to a stronger recommendation. The same displayed lot and assay values appear across unrelated products, so verify a distinct report for the exact compound and batch before relying on the testing claim. Code JOHNR10 provides 10% off.
More about Promino
Promino is a US-based research-peptide storefront with roughly 20 products and unusually polished product presentation. It offers card checkout, free shipping above $150, a 60-day money-back guarantee, clear vial sizes, and product-level pricing across BPC-157, TB-500, metabolic peptides, GH secretagogues, nootropics, NAD+, and several blends.
The trust limitation is specific and important. Although each product page displays a Certificate of Analysis area, unrelated products currently repeat the exact same 99.93% purity, lot A0112, 20mg labeled / 22.56mg actual result. That cannot verify distinct compounds or sizes. Promino therefore receives a provisional 5 until it publishes named-lab, batch-specific reports that can be independently checked. Strong checkout and return terms help operations but do not replace laboratory evidence; affiliate status is excluded from scoring.
Promino — pros & cons
Strengths
- Clean US storefront with secure card checkout, free shipping over $150, and a 60-day money-back guarantee
- Broad 20-product catalog with clear sizes, live stock status, and transparent product prices
- Product pages expose a COA section instead of leaving testing entirely on request
- Affiliate code JOHNR10 gives customers 10% off
Watch-outs
- Unrelated product pages repeat the same COA values — 99.93%, lot A0112, 20mg labeled / 22.56mg actual — so the evidence is not product-specific
- No named testing lab or independently verifiable report was established in this review
- New 2026 brand with no mature independent reputation; large on-site review counts are vendor-controlled
- No published street address or ownership details
Payment methods & shipping
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How we rate vendors
Our quality scores are based on a weighted rubric: 40% COA practices (named third-party lab, batch linkage, public availability), 20% community reputation, 20% transparency, and 20% operations. We are independently owned; affiliate status is not a scoring factor.
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PeptidePrices is independently owned and participates in Promino's affiliate program. We may be paid for qualifying purchases through our links. Promino cannot edit or approve this review, and the relationship does not add points to its score.