Thymosin Beta-4 Dosage Calculator

First thing: make sure your product is actually 43 amino acids. The community conflates Tb4 with TB-500 constantly, and vendors don't help. If your COA doesn't show a molecular weight near 4,921 Da on mass spectrometry, you probably have the 7aa fragment (843 Da). HPLC purity alone can't tell the difference. Reconstitution math for common vial sizes. A 5 mg vial plus 1 mL bacteriostatic water gives you 5 mg/mL (5,000 mcg/mL). On a U-100 insulin syringe, each unit equals 50 mcg. So 2,000 mcg (a standard loading dose) is 40 units; 2,500 mcg is 50 units; 1,500 mcg is 30 units. For a 2 mg vial plus 1 mL BAC water, you get 2 mg/mL; 750 mcg (beginner tier) is 37.5 units. Store reconstituted vials refrigerated at 2 to 8 degrees C and use within 2 to 3 weeks. Lyophilized powder keeps for up to 24 months refrigerated. Use bacteriostatic water, not sterile saline (saline shortens shelf life after reconstitution). The short half-life (about 2 hours IV) is why daily or frequent dosing makes sense. But the dominant community convention is 2 to 3 times per week at higher doses; either approach can be justified, and the 2 to 3x/week schedule is more practical.