About Pepthea
Research peptides have a trust problem. We're the fix.
The research-peptide market runs on unverified purity claims. Vials arrive with a "99%" on the label and nothing behind it — no HPLC trace, no mass spec, no lot traceability. For a researcher, that's not a reagent, it's a guess.
Pepthea is the alternative: high-purity reference peptides with the measured purity on the label and a third-party certificate of analysis for every lot — findable by the lot number printed on the vial. Sold strictly for laboratory research use.
We launched in 2026 as a small, honest operation. No fabricated reviews, no medical claims, no gray-area marketing. Every compound is what the COA says it is — and we tell you what the research does and doesn't support.
Purity you can verify
HPLC purity and mass-spec identity on every lot — the numbers are on the COA, not just the label.
Tested, then published
Third-party certificate of analysis per lot, published under the lot number. No COA, no shipping.
Scope we can defend
Reference peptides for laboratory research only. No medical, performance, or human-use claims — ever.