TRH Thyrotropin
Also known as: protirelin, trh, thyrotropin-releasing hormone
TRH (protirelin, thyrotropin-releasing hormone) is a naturally occurring tripeptide hormone produced in the hypothalamus.
Caliber Peptide Index tracks TRH Thyrotropin across 1 research-peptide vendor, with the lowest listed price at $3.72/mg (25mg) at Biotechpeptides as of 2026-05-30. Prices below are normalized to dollars per milligram so different vial sizes can be compared on an equal basis. TRH Thyrotropin is sold by third-party vendors for research use only.
Research Applications
Studied in research on the hypothalamic–pituitary–thyroid axis; historically used as a diagnostic agent.
Safety Considerations
Although protirelin is an approved diagnostic agent in some markets, the material tracked here is sold as a research-grade chemical, not the approved medicine, and is not for human use.
Available From 1 Vendor — Sorted by $/mg
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Frequently asked
- How many vendors sell TRH Thyrotropin?
- Caliber Peptide Index currently tracks 1 research peptide vendor listing TRH Thyrotropin.
- What is the lowest tracked price for TRH Thyrotropin?
- The lowest tracked price for TRH Thyrotropin is $3.72/mg (25mg) at Biotechpeptides. Prices are sorted by dollars per milligram so different vial sizes can be compared on an equal basis.
- How often are TRH Thyrotropin prices updated?
- Vendor prices are refreshed by our automated scraper (most recent update: 2026-05-30). Always confirm the current price on the vendor's site before purchase.
Caliber Peptide Index is a directory. We do not test, score, or endorse any vendor. Prices listed are what each vendor publishes; verify on the vendor's site before purchase.
Products listed for research purposes only — not for human consumption. Wiki content is summarized from publicly available research literature and is not medical advice.