Possible adverse effects may include: Injection site reactions : Redness, swelling, irritation, or discomfort Gastrointestinal symptoms : Nausea, vomiting, stomach cramps, or diarrhea Headaches or dizziness Allergic reactions : Rash, itching, shortness of breath, or facial swelling (rare) Increased heart rate or anxiety (typically temporary from B-vitamins) Fatigue or weakness if used improperly Elevated liver enzymes when taken in excess particularly with methionine or choline Insomnia if taken late in the day due to increased energy levels Who should avoid or use caution
Also, restrictive diets, such as vegan diets, can complicate dietary vitamin intake
In the liver, methionine is synthesized from homocysteine by the enzyme methionine synthase (MS)
Application technique: Dispense a few drops and apply to areas of thinning, usually the temples, crown, or hairline
Finally, remember that the most reliable half-life and stability data are always those published in peer-reviewed pharmacokinetic studies for the specific peptide, formulation, and species of interest
