US$ 22.87
bpc 157 effect on sleep Blend - Peptides for Deep Sleep & Recovery Can Peptides Improve Sleep, Recovery,
Description
So purchase from the internet at your own risk

Typo correction: "...therefore lacks understanding of the severity of B12 nerve DESTRUCTION." Thanks for posting this link it made interesting reading
Lunch meats are often preserved, cured or seasoned with salt, making them high in sodium

BPC-157 (Body Protection Compound, 500mcg) is a synthetic peptide based on a sequence found in human gastric juice, with research supporting its role in tissue repair, particularly in the GI tract

If your doctor suggests it, a course of vitamin B12 injections may be the most effective way to overcome a deficiency
At stage 4, natural tissue regeneration is going to be much more challenging, but luckily, there are new options that exist that can accelerate thyroid tissue repair ( see my article about lasers for tissue regeneration to learn about experimental strategies that may help)