For in-vitro research use only Certificate of analysis with every batch

Bio-luminescent research

Shift your perspective

Shift Four synthesizes research-grade peptides to exacting purity — each verified by independent HPLC and mass spectrometry, and catalogued with its certificate of analysis.

Explore the catalog The science

≥99%

Assay purity

COA

Every batch

24h

Dispatch

Specimen 01 — BPC-157Live specimen

The house standard

Every vial is a study in precision — synthesized, independently verified, and documented before it earns the label.

≥99% purityBatch-specific COAMass-spec verifiedPlain, secure dispatch

The collection

Featured compounds

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Recovery & Repair

BPC-157

Body Protection Compound, a stable gastric pentadecapeptide.

$32.99View →

Flagship — IpamorelinLive specimen

Signature · Growth Hormone

Ipamorelin

Selective growth-hormone secretagogue pentapeptide.

5mg vial$34.99

The index

By research area

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Growth Hormone

Ipamorelin

Selective growth-hormone secretagogue pentapeptide.

$34.99View →

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Metabolic

Semaglutide

Long-acting GLP-1 receptor agonist research peptide.

$51.99View →

Signature

Recovery & Repair

TB-500 (Thymosin Beta-4)

Synthetic fragment of the actin-regulating protein Thymosin β4.

$48.99View →

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10mg vial

$60.99

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4 compounds