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Those who've had certain surgeries: Gastrointestinal surgeries may reduce intrinsic factor production, limiting B12 uptake from food or oral supplements

In United States, the diet is deficient in vitamin B12

Thats why our commitment at Real Peptides to small-batch synthesis and exact amino-acid sequencing is a critical, non-negotiable element of what we do

Research chemical suppliers operate under different regulatory frameworks that allow sale for research purposes only

If you have a bowel disease, your doctor may encourage you to eat more vitamin B-rich foods or may prescribe a supplement

Melanotan-2 is a research peptide