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Some people do not absorb B12 efficiently due to age, gastrointestinal issues, or insufficient intrinsic factor, a protein required for B12 absorption

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doi: 10.1016/j.gde.2004.12.005

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5.GHK Cu: Repair damaged scalp Hair loss, especially in women, may be caused by scalp damage caused by relaxants, hair dye chemicals, hair dryers, and hot oil therapy

Prescribing unapproved drugs is not routine medical practice Without FDA approval or an authorized investigational pathway, licensed providers do not have authority to prescribe experimental compounds as treatment