Understand the source comparison
Research Peptides 2026: Supplier Comparison
Before selecting a peptide supplier, labs should evaluate synthesis method, purity verification, batch size, and post-synthesis support. The table below compares key differentiators across supplier categories. Small-batch U.S. synthesizer (e.g., Real Peptides)
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This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Before selecting a peptide supplier, labs should evaluate synthesis method, purity verification, batch size, and post-synthesis support. The table below compares key differentiators across supplier categories.
- Small-batch U.S. synthesizer (e.g., Real Peptides)
- Solid-phase peptide synthesis (SPPS) with real-time coupling verification
- 98–99.5% by HPLC + MS confirmation
- Mass spectrometry + amino-acid analysis on every batch
- High. 10–50g batches allow per-reaction QC
- 7–14 days custom, 2–3 days stock
- Best for reproducibility-critical studies; higher cost justified by sequence fidelity and traceability
- Bulk international supplier
- Liquid-phase or large-scale SPPS
- 95–98% by HPLC (sequence errors often undetected)
- HPLC only; MS available on request for added fee
- Moderate. 500g+ batches mean single failed coupling affects entire lot
- 21–45 days
- Cost-effective for high-volume screening; sequence verification essential before use
- Contract research organization (CRO)
- Custom SPPS with client-defined modifications
- 97–99% depending on complexity
- Full analytical suite (HPLC, MS, AAA) included in contract
- Variable. Depends on batch size negotiated
- 30–60 days
- Ideal for novel sequences or non-standard modifications; expensive but flexible
- Academic core facility
- SPPS on shared equipment
- 90–97% (QC limited by equipment access)
- HPLC only; MS requires external submission
- Low. Synthesis runs shared across multiple labs
- 14–30 days depending on queue
- Budget-friendly but quality inconsistent; best for preliminary work, not publication-grade data