Understand the source comparison
Peptide Deals April 2026 Sales Promotions — Comparison
Thymalin Thymus function, immune modulation research 16% lower HPLC + mass spec 24+ months at −20°C Small pentapeptide requiring exact sequencing; even single amino acid substitution eliminates thymic signaling activity MK 677 (Ibutamoren) Growth hormone secre
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This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Thymalin
- Thymus function, immune modulation research
- 16% lower
- HPLC + mass spec
- 24+ months at −20°C
- Small pentapeptide requiring exact sequencing; even single amino acid substitution eliminates thymic signaling activity
- MK 677 (Ibutamoren)
- Growth hormone secretagogue studies
- 15% lower
- HPLC + proton NMR
- 18+ months at −20°C
- Spirocyclic structure sensitive to storage humidity; verify structural integrity via NMR before reconstitution
- Cerebrolysin
- Neuroprotection, neuroplasticity research
- 18% lower
- HPLC multi-peak profile
- 24+ months at 2–8°C
- Peptide mixture. Authenticate via characteristic HPLC fingerprint, not single-peak purity
- Dihexa
- Cognitive enhancement research (HGF potentiation)
- 20% lower
- Hexapeptide requiring ≥99% purity; truncation products show zero HGF activity in binding assays
- SLU PP 332
- Mitochondrial uncoupling, metabolic studies
- 22% lower
- Dual-wavelength HPLC + mass spec
- Structural analogs from synthesis can exhibit partial activity; gradient purification essential
- Survodutide
- GLP-1/glucagon dual agonist research
- 14% lower
- Long-chain peptide (40+ residues). Verify via both HPLC purity and mass spec molecular weight confirmation