Peripheral neuropathy High amounts of vitamin B6, found in B complex supplements, can lead to a condition called peripheral neuropathy, which causes a loss of feeling in your hands and feet
For those considering peptide therapy, this uncertainty itself is a safety risk: an impure or mislabeled product can cause unexpected reactions that confound reproductive plans
At 0.5 mg per week, a 5% error is 0.025 mg, still clinically insignificant, but a 50% error (which is easy to make at very low volumes) means you are taking 0.25 mg or 0.75 mg instead of 0.5 mg
Summary: Feeling worse after a B12 injection typically reflects your body adjusting to replenished vitamin levels, triggering metabolic processes that may temporarily cause fatigue, headaches, or injection site discomfort
These injections replenish your B12 levels, helping your body produce more energy
This can appear as mild rashes, itching, or unexpected breakouts