Peptan (Collagen Peptides)

Peptan (Collagen Peptides) is a hydrolyzed type I and type II collagen derived primarily from bovine hides, porcine skin, or fish scales. Per 10 g serving (typical daily dose): ~9–9.5 g protein (>90% protein on dry weight basis), <0.5 g fat, <0.5 g carbohydrates, ~35–40 kcal. Rich in specific amino acids: Glycine (~22–25%, ~2.2–2.5 g/10 g), Proline (~12–14%, ~1.2–1.4 g/10 g), Hydroxyproline (~11–13%, ~1.1–1.3 g/10 g), Alanine (~8–10%, ~0.8–1.0 g/10 g), Glutamic acid (~10%, ~1.0 g/10 g), and Arginine (~8%, ~0.8 g/10 g). Notably low or absent in Tryptophan (<0.1%), making it an incomplete protein. Contains trace minerals depending on source: Calcium (~20–50 mg/10 g from fish-derived), Phosphorus (~10–30 mg/10 g), Sodium (~50–200 mg/10 g depending on processing), and trace amounts of Magnesium and Potassium. No significant vitamin content. Bioactive compounds include specific collagen-derived dipeptides and tripeptides, notably Prolyl-Hydroxyproline (Pro-Hyp) and Hydroxyprolyl-Glycine (Hyp-Gly), which act as signaling molecules for fibroblast and chondrocyte activity. Average molecular weight of peptides: 2,000–5,000 Daltons (optimized for intestinal absorption). Bioavailability is notably high (~90–95% absorption within 6 hours of ingestion) due to enzymatic hydrolysis reducing molecular weight; collagen peptides are detected in blood plasma within 1–2 hours post-ingestion. Pro-Hyp dipeptides have been measured at peak plasma concentrations of ~30–60 nmol/mL after a 10 g dose. No fiber, no cholesterol, and typically free of allergens (though fish-derived variants may affect those with fish allergies). Contains no added sugars, and is gluten-free. Ash content typically <2%.