Companies get around this by labeling it as a "research chemical not for human consumption." This means the product is completely unregulated, and you have no way of knowing if it's pure, sterile, or even contains the correct substance
Practically speaking, I often recommend: Prioritizing protein at each meal
It differs from person to person
Where does the link between these drugs and fertility come from
Storage Requirements Across Treatment Phases Tirzepatide storage needs change as you transition from the pharmacy to home use
Review of an NDA by the FDA Assuming successful completion of required clinical testing and other requirements, the results of the preclinical studies and clinical trials, together with detailed information relating to the products chemistry, manufacture, controls and proposed labeling, among other things, are submitted to the FDA as part of an NDA requesting approval to market the drug product for one or more indications