Member's Mark

Member's Mark receives a brand trust score of 0/100 in GoodSupp's independent analysis. The company was founded in 1998 and is headquartered in Bentonville, Arkansas, USA. They hold 3 verified certifications including Consumerlab, Usda Organic, Vegan Certified. These certifications are independently verified by GoodSupp and indicate the brand meets recognized quality, purity, and manufacturing standards. Note: Member's Mark has 1 historical regulatory incident on record. These are factored into the overall trust score and are detailed in the violation history section above.

Yes. Member's Mark holds 3 verified third-party certifications: Consumerlab, Usda Organic, Vegan Certified. Third-party testing means an independent laboratory — not the supplement company itself — has verified the product's contents, purity, and/or manufacturing practices. This is one of the strongest indicators of supplement quality because it removes the conflict of interest inherent in self-testing. Not all certifications are equal: NSF International and USP are considered the gold standard, while GMP certification indicates proper manufacturing practices.

Based on GoodSupp's quality analysis, the highest-rated Member's Mark supplements are: Fish Oil, 1400 mg (score: 88/100); Vitamin B12 5000 mcg (score: 81/100); Women's Daily Probiotic Dietary Supplement (score: 64/100). These scores are calculated from ingredient quality, dosage adequacy, bioavailability, label transparency, and inactive ingredient safety. Scores can vary significantly across a brand's product line — a high brand trust score doesn't guarantee every individual product is top-quality.

Member's Mark is headquartered in Bentonville, Arkansas, USA. The company was founded in 1998. They currently offer 76 products in their supplement lineup. Their official website is samsclub.com/c/members-mark/7230141. Manufacturing location may differ from corporate headquarters — look for GMP certification to verify manufacturing quality standards.