The documentation benchmark for the U.S. research-peptide market: triple independent lab testing on every batch, a clean reputation, and verifiable COAs. Here's our full breakdown — and exactly what to know before you source.
Affiliate disclosure: the link above is an affiliate link. If you purchase through it, Peptides Uncaged may earn a commission at no extra cost to you. This never changes our scoring. Ascension's site is U.S.-only and requires a free account (21+).
Most U.S. vendors test purity with HPLC and stop there. Ascension layers three independent checks on every batch:
Each COA carries a lot number, test date, and named laboratory, and Ascension publishes a public COA library. That batch-level traceability is the single most important signal that a research material is what its label claims — see our guide to reading a COA and our full ranking methodology.
Across Trustpilot and research communities, Ascension averages 4.7★ over 94 verified reviews with no contamination reports. Buyers most often praise fast UPS shipping, discreet packaging, and unusually responsive support; the most common criticisms are premium pricing and U.S.-only shipping.
Ascension carries the core, most-researched compounds plus a few convenience blends. Confirmed availability includes:
Catalog breadth is mid-size — comprehensive for the popular compounds, but it doesn't include rarer peptides. Stock changes; check the live site for current availability.
U.S.-only via UPS at a flat $15, typically 5–7 business days with same-day processing on early orders, in discreet, unbranded packaging. Pricing sits at the premium end — recent sample starting prices were roughly BPC-157 5 mg ~$35, TB-500 5 mg ~$42, semaglutide 5 mg ~$65 (approximate and subject to change). You'll need a free account and must be 21+ to view products.
Affiliate link · disclosed per FTC guidelines. For research use only — not for human consumption.
See how Ascension stacks up against every vendor on the Best Peptide Companies hub, or check the individual compound tables linked above for side-by-side purity, COA, and shipping.
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