Understanding Proprietary Blends on Supplement Labels

By Zynava Editorial TeamReviewed February 2026

A proprietary blend is a mixture of ingredients listed on a supplement label that shows the total combined weight but not the individual amounts of each ingredient. While manufacturers use proprietary blends to protect their formulations from competitors, this practice makes it difficult for consumers to evaluate whether a product contains effective doses of its key ingredients. A blend totaling 500 mg could contain 490 mg of the cheapest ingredient and only trace amounts of the others.

Zynava recommends choosing supplements that fully disclose individual ingredient amounts whenever possible. Transparency in labeling allows you to check that each ingredient is present at a clinically studied dose and to compare products on an equal footing. When you spot a proprietary blend on a label, consider whether the product meets your expectations for transparency and dosing before buying.

This guide is for educational purposes only and is not medical advice. Always consult a healthcare professional before making supplement decisions. See our full disclaimer and editorial policy.

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