Peptide Research Library
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What Is KPV? Peptide Research Guide (2026 FDA Update)
KPV is a tripeptide made of lysine, proline, and valine (Lys-Pro-Val), the last three amino acids at the tail end of alpha-melanocyte-stimulating hormone (alpha-MSH). Preclinical studies…
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Peptide Purity: What 98% vs 99% Actually Means
A peptide purity figure is the share of the sample that is your target peptide, measured by HPLC. So 98% purity means about 2% of the…
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HPLC vs Mass Spectrometry: How Peptide Purity & Identity Are Tested
HPLC and mass spectrometry answer two different questions about a peptide. HPLC measures how pure a sample is by separating it into its parts and reporting…
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7 Peptide Drugs at the FDA in July 2026: Full Review Breakdown
On July 23 and 24, 2026, the FDA’s Pharmacy Compounding Advisory Committee (PCAC) reviewed seven peptides for the Section 503A compounding list and recommended six of…
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What Is the FDA 503A List? Peptide Compounding Explained
The FDA 503A bulk list decides which peptides pharmacies can compound. What it is, why the July 2026 peptide vote matters, and what it means for…
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FDA Advisory Panel Backs BPC-157 & KPV for Compounding (July 2026): What It Actually Means
An FDA advisory panel voted 8-6 to recommend BPC-157 and KPV for pharmacy compounding, over FDA staff objections. Here is what it does and does not…
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