Retinoic Acid: The Answer to Which Acid is Also Known as Vitamin A?
                                
                                
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                                    4 min read                                
                            
                                Vitamin A is not a single compound but a group of fat-soluble retinoids. Retinoic acid is one of its most important and biologically active metabolites, making it the correct answer to the question, which acid is also known as vitamin A. This potent form plays a crucial role in various bodily functions, from cell communication to skin health.