You described the fatigue, the brain fog, the libido that's barely a memory
That is why caution matters
For a 150lb person (about 68kg), a moderate dose of 20mg/kg would be roughly 1,360mg per day
And therefore, its possible that a vitamin B12 deficiency in scalp tissues might play a role for people dealing with androgenic alopecia
The compound therefore functions as a positive modulator of an existing growth factor system rather than as an independent agonist, which is the proposed explanation for its reported potency: it amplifies a signal already present rather than supplying a new one

Individuals with any of the following conditions should consult with their healthcare provider before use and may not be eligible for treatment: Personal or family history of medullary thyroid carcinoma (MTC) or Multiple Endocrine Neoplasia syndrome type 2 (MEN2) Known hypersensitivity to GLP-1 or GLP-1/GIP medications or any formulation components, including additives such as vitamin B12 or cobalt Pregnancy or plans to become pregnant (therapy should be discontinued at least two months prior to planned pregnancy) Diabetic ketoacidosis (DKA) or type 1 diabetes Severe gastrointestinal disease (including gastroparesis or active inflammatory bowel disease) Severe cardiovascular disease (including unstable coronary artery disease or heart failure) Recent bariatric or gastrointestinal surgery within the past six months Active cancer currently undergoing chemotherapy or radiation treatment This list is not comprehensive