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Individuals with certain health conditions, such as Lebers disease (a rare inherited eye disease), should avoid B12 supplements as it can worsen the condition

The four subcutaneous areas that work best are the lower abdomen (away from the navel), the outer thigh, the back of the upper arm, and the flank or love-handle area

They are made in the USA, free from allergens, and offer maximum absorption for fast, effective results

AOD-9604 is a modified 16-amino acid fragment of human growth hormone (hGH), corresponding to the C-terminal region (amino acids 176191) with an added tyrosine residue at position 177

Most are not FDA-approved for human use, some exist only through a prescription or compounding pharmacy tied to a different condition, and the rest are sold exclusively as unregulated "research chemicals" not intended for human consumption