TB4 Thymosin Beta-4 (Long Chain)
TB4 (Thymosin Beta-4): This is the original, full-sized protein. It is made up of 43 amino acids (the tiny building blocks of proteins). Your body makes it naturally to heal wounds.
TB-500: This is a shorter, man-made chain of only 7 amino acids. It is made in a lab to be easier to produce while keeping the main healing power of TB4.
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