XL Peptides
UK-registered research-peptide supplier publishing per-batch third-party certificate links on its product pages.
xlpeptides.com →Recorded attributes
- Stated purity
- 99% or higher, made in a cGMP-compliant ISO9001 facility
- COA access
- Public library
- Testing method
- Batch reports from Janoshik S.R.O Laboratories, Prague
- Product format
- Lyophilised powder
- Dispatch
- Shipped out within 1-2 working days (About page states same-day dispatch)
- UK-based
- Yes
- Company number
- 15464334 (Bio Research Ltd T/A XL Peptides), VAT 501231558
- Catalogue size
- ~35 products
Recorded from XL Peptides’s own public website on 29 Jul 2026. “Not stated” means we did not find the information on their site, not that it is absent from their business. Details change — verify anything that matters directly with the supplier. XL Peptides and any related marks are the property of their owner.
Notes
- Batch certificate links are published on individual product pages rather than on the quality page, and require no login. The certificate host blocked automated retrieval, so contents were not inspected.
- Registered office is in the UK; the manufacturing facility location was not stated.
- Dispatch timing is stated differently in the footer and on the About page.