Is Biotin a Vitamin-Like Substance or a True Vitamin?
                                
                                
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                                    4 min read                                
                            
                                According to the National Institutes of Health, biotin is a B vitamin essential for metabolic processes. This fact directly addresses the core question: biotin is not merely a vitamin-like substance but is, in fact, a bona fide, water-soluble B vitamin, specifically known as vitamin B7.