Crownwell Research
Independent price profile. We track 9 in-stock listings from crownwellresearch.com · online since Jan 2026How long the vendor's website domain has existed — from public registration records and the Wayback Machine. It's the domain's age, not proof of how long the business has run. · cheapest tracked: $0.05/mg.
Domain age from public registration records (RDAP) + the Wayback Machine — the domain's age, not proof of how long the business has operated.
refreshed 38m ago
Crownwell Research scores 13/100 in pepmg's criteria-based Vendor Score, which rates only what a vendor publishes about lab testing and about itself, not its products and not its prices. What we observed: COA documents published, none openable at the testing lab (0 of 13). The biggest credibility signal pepmg weighs is how a vendor publishes lab tests: pepmg catalogued COA documents on its site, but none of them open at a testing lab's own site and none name a lab pepmg could resolve, so a buyer can read the documents without being able to confirm them at the source. Neither price nor catalog size affects this score, but for context it prices below the tracked median across the compounds it shares with other tracked vendors, over 7 tracked listings. Its prices are machine-readable and it publishes an About page, and the domain is newer, online since Jan 2026, which pepmg counts as neutral rather than a mark against it. This rates what Crownwell Research publishes about lab testing and about itself, not the purity or authenticity of any vial, which pepmg can't verify, so read the COAs yourself. Research use only.
- Room to improve Publishes COA documents — no testing lab attributed — 13 COA documents found, 0 of them openable at the testing lab's own site
How we scored this
| COA transparency | | 0/87 | publishes COA documents — no testing lab attributed — 13 COA documents found, 0 of them openable at the testing lab's own site |
| About / who they are | | 8/8 | publishes an About/founder page |
| Public price data | | 5/5 | publishes machine-readable public prices |
Stated, but NOT scored. These describe the vendor; they earn no points either way.
| Price vs market | 0.84x the tracked median across 5 shared compound(s) |
| Catalog | 7 clean in-stock listing(s) tracked |
| Track record | active · new domain (online Jan 2026) — no age penalty |
What would raise this score. Published behaviour only. How a vendor runs its business is its own call, and none of this affects the $/mg ranking.
- 13 of the 13 published COA documents open on the vendor's own site rather than at the testing lab. Linking the lab's own copy on those pages would let a buyer confirm the result at the source. (up to +87)
Computed from what this vendor publishes about lab testing and itself. Price and catalog size are shown above as facts and are deliberately NOT scored — $/mg is the ranking, and it is affiliate-blind. No opinions, no testimonials.
Are you the vendor? If you have changed something we score here, published something we did not find, or think we got it wrong, reach out or email hello@pepmg.com and we will re-check. Vendor corrections have already changed ratings on this site.
We don't host reviews — an unverifiable review box is a magnet for bots and paid posts, and we won't pretend otherwise. Instead, here's where you can read what real buyers say about Crownwell Research, on sites we don't control:
These are independent, unmoderated sources — we link them, we don't vouch for them, and a "profile" or "search" link may turn up little or nothing. pepmg's job is the part we can stand behind: prices captured first-party with a timestamp, ranked purely by $/mg, plus the objective Vendor Score above. Vetting a source you're about to buy from still matters, and that call is ultimately yours — we've made it as informed as we honestly can.
Vendor links are temporarily offline while we review our referral and linking policies. Listings remain for price transparency.
| # | Vendor | Product | Size | Price | $/mg | Trend |
|---|---|---|---|---|---|---|
| 1 | Crownwell Research | Glutathione — 1200 mg ▼ all-time low first-party · captured 26m ago | 1200mg | $56.00 | $0.05 | |
| 2 | Crownwell Research | Tirzepatide 60mg (2 vials) BULK first-party · captured 26m ago | 120mg | $140.00 | $1.17 | |
| 3 | Crownwell Research | Tirzepatide 30mg x 10 BULK first-party · captured 26m ago | 300mg | $372.00 | $1.24 | |
| 4 | Crownwell Research | GLP3-Reta 60 (2 x 30mg) first-party · captured 26m ago | 60mg | $159.00 | $2.65 | |
| 5 | Crownwell Research | Tirzepatide first-party · captured 26m ago | 40mg | $127.00 | $3.18 | |
| 6 | Crownwell Research | GLP3-Reta 40mg (2 x 20mg) ▼ all-time low first-party · captured 26m ago | 40mg | $130.00 | $3.25 | |
| 7 | Crownwell Research | MOTS-C 10mg first-party · captured 26m ago | 10mg | $47.00 | $4.70 | |
| 8 | Crownwell Research | GLP2-Tirz 50mg (5 x10mg) first-party · captured 26m ago | 50mg | $289.00 | $5.78 | · |
| 9 | Crownwell Research | GLP1-Sema first-party · captured 26m ago | 5mg | $30.00 | $6.00 |