Welcome to the official X-Peptides subforum — pinned thread for questions about the catalog, COAs, and anything else you want the company to answer directly.
A bit of ground truth for anyone new here: X-Peptides has been the most consistent sponsor on this directory in 2026, with paid placements across several categories and a verified site check. That doesn't make them perfect — it makes them accountable. Ask specific questions and you'll get specific answers.
Useful things to bring to this thread:
- Batch numbers you want COA confirmation for
- Questions about product specs or third-party testing
- Feedback on anything you've seen on their site that seems unclear
Colin and the team will be reading and answering here. Keep it factual, keep it useful, and the same goes for the answers you get back.