Note: If you are taking prescription medications, especially those for acid reflux or diabetes (like metformin), talk to your healthcare provider
Some peptides, including insulin and GLP-1 medications, are FDA-approved drugs that have cleared clinical trials and are manufactured under current Good Manufacturing Practice (cGMP) standards
doi: 10.1016/j.ejphar.2008.06.032
[6] [3] [10] A mild deficiency may not cause any discernible symptoms, but moderate deficiency can cause various symptoms, such as feeling tired, lightheadedness, headaches, cold intolerance, pale skin, sore tongue, upset stomach, loss of appetite, hair and skin color changes, numbness or tingling (pins and needles) of the fingers and toes, and tinnitus, and vision, cognitive or psychological problems
For Research Use Only, not for human or veterinary use
The stated dose on a label means nothing if the product inside isn't pure or stable