Once a vial has been punctured and is in use, it is generally recommended to discard any leftover solution after ~28 days for sterility reasons (even if within the chemical BUD)
Due to the side effects associated with extended use of corticosteroids, they are generally prescribed on a short-term basis
S-lipoic acid, on the other hand, is a synthetic byproduct of the manufacturing process found in many low-cost supplements
Reported Side Effects: Injection site reactions (most common) Headache Mild water retention Transient dizziness Fatigue (temporary) Joint stiffness (with GH elevation) Rare/Serious (requiring immediate attention): Significant swelling of hands, feet, or face Chest pain or shortness of breath Vision changes Allergic reactions FDA Concerns: Immunogenicity risk Limited clinical safety data Classified as Category 2 bulk drug substance presenting significant safety risks Regulatory Status United States: Not FDA approved for any indication
A short, soluble peptide may purify cleanly, while a longer hydrophobic peptide may require more method development and may show lower recovery after purification