Which is better, biotin or marine collagen for hair and skin?
                                
                                
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                                    4 min read                                
                            
                                As much as 80% of our skin is made of collagen, yet many people are confused about which supplements are best for their beauty regimen. The debate over which is better, biotin or marine collagen, is complex, as both offer distinct benefits for hair, skin, and nails.