Are peptides legal in Colorado?
Peptide drugs are federally regulated. State pharmacy law governs compounding and dispensing, and the state board follows FDA 503A/503B bulk-substance rules. Colorado permits broad telehealth prescribing, including for GLP-1 therapies, through licensed practitioners.
Compounding
503A aligned
Primary citations
- C.R.S. § 12-280
What this means practically
Approved peptide drugs such as semaglutide, tirzepatide, and tesamorelin are obtainable in Colorado with a valid prescription from a licensed practitioner, dispensed by a licensed pharmacy. Telehealth access is permitted.
Peptides on the FDA's 503A Category 2 bulk list — including BPC-157, CJC-1295, ipamorelin, and thymosin alpha-1 — cannot lawfully be compounded by any pharmacy in Colorado, regardless of state rules, because the restriction is federal. Products sold online as "research chemicals" are not approved for human use.
This page tracks status only. It is not legal advice, and state boards update guidance frequently.