Dec 29, 2025 Peptides absolutely expire, but shelf life varies dramatically based on form (lyophilized powder vs reconstituted liquid), storage conditions (freezer vs refrigerator vs room temperature), peptide type (some are more stable than others), and handling (contamination, light exposure, temperature fluctuations)
Secure cold-chain packaging
Use during pregnancy or breastfeeding is not recommended due to insufficient study
10.1126/science.1206095 Science
Trends in Pharmacological Science Wong, C.K., & Drucker, D.J
In stock L-Glutathione 200mg/mL (Preserved) injectable, 30mL SKU 094-emp Strength: 200mg/mL L-Glutathione is a compounded antioxidant for injection