[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
Which peptide is right for you
But the study authors named it explicitly as an off-target activity they are working to engineer out, and even speculated that some of the glucose-tolerance benefit might come from it
Dosing & Reconstitution Guide Subcutaneous, once or twice daily Subcutaneous Protocol (2 mL = 5 mg/mL) Frequency: Inject once or twice daily subcutaneously