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The average hair serum on the market contains between 20 and 30 ingredients, stabilizers, emulsifiers, fragrance compounds, and proprietary blends that make a label look complete and a formula harder to trace
Biomarker Context: B12 Levels, Homocysteine, and Metabolic Status B12 status influences MIC B12 safety and efficacy
Barrand MA, Heppell-Parton AC, Wright KA, Rabbitts PH, Twentyman PR
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