Is Costco multivitamin safe? A Comprehensive Review
                                
                                
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                                    4 min read                                
                            
                                Despite many Kirkland Signature multivitamins being verified by independent third-party organizations like USP, recent product recalls and general concerns about supplement regulation warrant close scrutiny. This article investigates the safety of Costco multivitamin products by analyzing manufacturing standards, potential risks, and ingredient quality.