What does MOD mean?
While many of these formulas carry the tag “modified,” they do not differ substantively from published and approved Tissue Culture Association (TCA) formulations. The modification generally involves an adjustment based on waters of hydration, modified salt forms, or amino acid isomer modification; for example, use of a L isomer of an amino acid instead of a DL isomer. In most cases, these changes have been made to improve solubility, reduce moisture content, or provide greater stability to the product formulation.
