Clinical-grade peptides, made to order in the US.

Rails Bio is a US peptide wholesaler supplying clinical-grade peptides directly to telehealth and wellness businesses, laboratories, and research facilities.

We provide access to vetted cGMP facilities with ISO 5 and ISO 7 clean rooms, end-to-end lyophilization, sterile fill-finish and automated vial filling, all verified by HPLC, mass spectrometry and endotoxin screening.

  • cGMP audited facilities
  • ISO 5 and ISO 7 clean rooms
  • 100% US-manufactured
  • Fast turnaround
  • Full domestic shipping

Products

Featured Compounds

Custom doses, custom blends, and private-label peptides available on request. 100-vial minimum per SKU. Pricing provided following quote submission and account approval.

Research use only. Not for human or animal consumption. Not a compounding pharmacy. Not 503A/503B.

Need something not listed? Add it under “Additional product requests” with your details.