Nature’s Way analyzes every batch of valerian root standardized to contain 0.8% valerenic acids to ensure that you receive the potency promised on the label.

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel and will support the benefit stated on the label. High-Performance Thin-Layer Chromatography (HPTLC) testing provides a detailed chemical fingerprint of the ingredient for comparison against certified botanical reference standards. HPTLC testing is among the best, most reliable methods for authenticating raw materials.

Nature’s Way tests every ingredient for microbial contaminants that can break down ingredients, decrease potency, and degrade a product’s quality. Verifying that ingredients meet regulatory standards for microorganisms like bacteria, molds, and yeasts helps ensure a safe and compliant product.

Every ingredient is tested to meet regulatory standards for heavy metals, including arsenic, cadmium, mercury, and lead. Testing for trace metal levels ensures ingredients comply with protective laws like California’s Proposition 65, and that the supplement won’t expose you to harmful levels of chemicals.

The Environmental Protection Agency (EPA) establishes safety limits, known as tolerances, for residual pesticides, and the Food & Drug Administration (FDA) requires botanical suppliers to comply. While most ingredients are verified through annual qualification of our suppliers’ pesticide testing, some botanicals are more susceptible to retaining pesticide residue, so Nature's Way tests to confirm every batch of the raw material complies with USP <561>.

Trace amounts of solvents used during processes such as ingredient extraction may remain in the raw materials. Performing USP <467> screening ensures that residual solvents are within safe, regulated limits. Testing every lot of the ingredient ensures it is processed according to Good Manufacturing Practices.

Assay testing is performed on certain raw materials to measure the amount of a key component. This testing ensures consistency across batches of raw material, so you can feel confident that the ingredient matches the quantified amount declared on the label.

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel and will support the benefit stated on the label. High-Performance Thin-Layer Chromatography (HPTLC) testing provides a detailed chemical fingerprint of the ingredient for comparison against certified botanical reference standards. HPTLC testing is among the best, most reliable methods for authenticating raw materials.

Nature’s Way tests every ingredient for microbial contaminants that can break down ingredients, decrease potency, and degrade a product’s quality. Verifying that ingredients meet regulatory standards for microorganisms like bacteria, molds, and yeasts helps ensure a safe and compliant product.

Every ingredient is tested to meet regulatory standards for heavy metals, including arsenic, cadmium, mercury, and lead. Testing for trace metal levels ensures ingredients comply with protective laws like California’s Proposition 65, and that the supplement won’t expose you to harmful levels of chemicals.

Trace amounts of solvents used during processes such as ingredient extraction may remain in the raw materials. Performing USP <467> screening ensures that residual solvents are within safe, regulated limits. Testing every lot of the ingredient ensures it is processed according to Good Manufacturing Practices.