It's the delivery
Every time a needle pierces that rubber stopper, you're creating a potential entry point for contaminants
The SDUD is publicly available data provided as part of the Medicaid Drug Rebate Program (MDRP), and provides information on the number of prescriptions, Medicaid spending before rebates, and cost-sharing for rebate-eligible Medicaid outpatient drugs by NDC, quarter, managed care or fee-for-service, and state
TB-500 adds actin-regulation and cell-migration support
People who consistently show stronger effects include those with overweight or obesity, older adults who may have declining muscle carnitine stores, and people with low dietary intake of carnitine
Whether those extras are worth the added cost depends largely on your goals