For laboratory research only
For US readers aged 21 or older. Not for human or animal use. Review the supplier’s current documentation and terms for your laboratory context.
Sparta Labs · Research use only
GLP-3 (RT)
Research-use-only materials, not for human consumption.
Research & sources ↓Listed from $80.00 USD
Starting option: 10mg package. Package amount, not a use instruction.
Price checked October 6, 2026. Select the package and confirm current price and availability at Sparta Labs. Taxes and shipping may apply.
Sparta Labs products are sold for research use only and are not for human consumption. This content is not medical advice and is not a recommendation to use any substance.
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Research reference
About GLP-3 (RT)
The supplier’s reference lists this material under the name Retatrutide. Reference type: Synthetic peptide (39 amino acids). [1]
Chemical identity records and published studies are reference information, not evidence that a supplier’s batch has been independently tested.
Analytical method study
A starting point in the literature
The linked paper evaluates an LC-HRMS method using human plasma and urine samples. It is an analytical detection study, not a randomized efficacy trial or validation of this catalog material. [2]
Read the publication record →Rapid communications in mass spectrometry : RCM · 2026 · PMID 42745421
Sources and further reading
- Supplier molecular reference — supplier-provided identity information.
- Publication record on PubMed — the research described above.
- Retatrutide research overview — Sparta Labs editorial resource.
- Retatrutide published research — Sparta Labs editorial resource.
References checked October 6, 2026. This is a selected reading guide, not a systematic review. Publications concern their own experimental materials and formulations. They do not establish safety, suitability for personal use or equivalence to this supplier’s products.