How to know if collagen has gone bad? A complete guide to spotting spoiled supplements
                                
                                
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                                    4 min read                                
                            
                                Most collagen powders have a shelf life of 1-2 years, but improper storage can cause it to spoil much faster. Knowing how to know if collagen has gone bad is crucial for safety and efficacy, as using degraded product can offer little benefit and potentially cause illness.