Lutein

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Lutein

 
 

Lutein

Lutein and zeaxanthin carotenoid extract from Aztec marigold

Tests done on every batch

Manufacturers determine the amount and types of testing done on raw ingredients. Nature’s Way goes above and beyond industry standards with extensive testing on every batch of ingredients before they even go into production.

Identification

For non-botanical ingredients such as vitamins and minerals, Nature’s Way uses the test method that has been validated for the specific ingredient. Among these methods are Fourier-Transform Infrared Spectroscopy (FTIR), Inductively Coupled Plasma Mass Spectrometry (ICP-MS), and Liquid Chromatography-Mass Spectrometry (LC-MS) for complex ingredients.

Microbiological contaminants

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.

Tests performed periodically

Nature’s Way performs additional tests to ensure every supplier’s testing meets federal regulatory and our own high standards. Extra testing is especially critical for monitoring higher-risk botanicals.

Lutein

Nature’s Way tests lutein carotenoid from Aztec marigold extract to ensure that you receive the potency promised on the label.

Zeaxanthin

Nature’s Way tests zeaxanthin carotenoid from Aztec marigold extract to ensure that you receive the potency promised on the label.

Potency assay

Testing is performed on certain raw materials to measure the potency of a key component. This testing ensures consistency across batches, so you can feel confident that the ingredient matches what’s stated on the label.

Heavy metals

Nature’s Way verifies suppliers' compliance with protective laws like California’s Proposition 65 on a periodic or annual basis. We do this to ensure the raw material meets regulatory standards and won’t expose you to harmful levels of heavy metals, including arsenic, cadmium, mercury, and lead.

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