Super Thisilyn

Milk Thistle

Silybum marianum (L.)

Extract standardized to contain 80% silymarin

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.

Silymarin (from milk thistle)

The benefits of milk thistle seed are often attributed to its component called silymarin. Analyzing each batch of powdered extract ensures your product contains the amount of silymarin promised on the label.

Standardized assay

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.

Identification

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel. 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.

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.

Heavy metals

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.

Solvent residue

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.

Aflatoxins

Aflatoxins are naturally occurring mycotoxins produced by specific mold and fungi species that grow on crops and botanicals, so it’s important to know your products are tested for them. Aflatoxin qualification testing at Nature’s Way ensures our suppliers’ testing is reliable and that the ingredients meet the required qualifications.

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.

Pesticides

The Environmental Protection Agency (EPA) sets safety limits, known as tolerances, for residual pesticides, and the Food & Drug Administration (FDA) requires botanical suppliers to comply. Nature’s Way verifies compliance with these tolerances through annual or periodic in-house testing of raw materials following the standards outlined in USP <561> to ensure safety and quality.

The ingredient

The name "milk thistle" comes from the milky-white veins in its leaves and sap that oozes out when crushed. The herb has been used in Chinese and Ayurvedic traditions for millennia. While we use the seeds for our supplements, almost all parts of the milk thistle plant are edible. The roots, young shoots, and leaves can be cooked or eaten fresh.

The majority of our milk thistle is cultivated in the cool and dry climates of Asia where vast, fertile land offers ideal growing conditions for amazing milk thistle.

Parts used:

Seed

N-Acetyl L-Cysteine

Acetylcysteine

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.

N-acetyl L-cysteine

Nature’s Way tests the potency of every batch of raw material to ensure that you receive the amount of acetylcysteine per serving that’s stated 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.

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.

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.

Solvent residue

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. Annual testing of the ingredient ensures it is processed according to Good Manufacturing Practices.

L-Methionine

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.

L-methionine

Nature’s Way tests the potency of every batch of raw material to ensure that you receive the amount of L-methionine per serving that’s stated 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.

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.

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.

Solvent residue

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. Annual testing of the ingredient ensures it is processed according to Good Manufacturing Practices.

Turmeric

Curcuma longa L.

Extract standardized to contain 95% curcuminoids

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.

Curcuminoids

The benefits of turmeric are often attributed to curcuminoids. Analyzing the curcuminoid content of each batch of extract ensures the product delivers 95% curcuminoids as stated on the label.

Standardized assay

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.

Identification

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel. 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.

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.

Heavy metals

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.

Solvent residue

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.

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.

Natural Products Authenticity

This testing ensures that the product is not spiked or diluted with synthetic materials, including fossil fuel-derived materials.

Pesticides

The Environmental Protection Agency (EPA) sets safety limits, known as tolerances, for residual pesticides, and the Food & Drug Administration (FDA) requires botanical suppliers to comply. Nature’s Way verifies compliance with these tolerances through annual or periodic in-house testing of raw materials following the standards outlined in USP <561> to ensure safety and quality.

Aflatoxins

Aflatoxins are naturally occurring mycotoxins produced by specific mold and fungi species that grow on crops and botanicals, so it’s important to know your products are tested for them. Aflatoxin qualification testing at Nature’s Way ensures our suppliers’ testing is reliable and that the ingredients meet the required qualifications.

The ingredient

Turmeric is part of the ginger family and is prized for its deep roots, which are dried, turned into a vibrant yellow-orange powder, and used as a spice. But the plant isn’t just a wonderful addition to your cooking; it has also been revered for its many wellness benefits.

Nature’s Way sources turmeric from its native lands in India, where our turmeric supplier has provided agricultural support to the farming communities for years.

Parts used:

Root

Rhizome

Dandelion Root

Taraxacum officinale

Root powder

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

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel. 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.

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.

Heavy metals

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.

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.

Pesticides

The Environmental Protection Agency (EPA) sets safety limits, known as tolerances, for residual pesticides, and the Food & Drug Administration (FDA) requires botanical suppliers to comply. Nature’s Way verifies compliance with these tolerances through annual or periodic in-house testing of raw materials following the standards outlined in USP <561> to ensure safety and quality.

Aflatoxins

Aflatoxins are naturally occurring mycotoxins produced by specific mold and fungi species that grow on crops and botanicals, so it’s important to know your products are tested for them. Aflatoxin qualification testing at Nature’s Way ensures our suppliers’ testing is reliable and that the ingredients meet the required qualifications.

Pyrrolizidine alkaloids

Nature’s Way tests specific ingredients for pyrrolizidine alkaloids, which are naturally occurring chemical compounds produced by certain plants as a defense mechanism.

The ingredient

While some may say the dandelion—a small, flower-like botanical that grows quickly and plentifully around the globe—is a pesky weed, it’s actually a versatile botanical that can be used in teas, tinctures, powders, and other wellness preparations. Its leaves and flowers can also be eaten, most commonly in salads.

We source dandelion root from locations in Eastern Europe.

Parts used:

Root

Artichoke

Cynara cardunculus var. Scolymus L.

Extract standardized to contain 7% caffeoylquinic acids

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.

Caffeoylquinic acid

Nature’s Way analyzes every batch of artichoke leaf extract standardized to contain 7% caffeoylquinic acids to ensure that you receive the potency promised on the label.

Standardized assay

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.

Identification

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel. 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.

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.

Heavy metals

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.

Solvent residue

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.

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.

Pesticides

The Environmental Protection Agency (EPA) sets safety limits, known as tolerances, for residual pesticides, and the Food & Drug Administration (FDA) requires botanical suppliers to comply. Nature’s Way verifies compliance with these tolerances through annual or periodic in-house testing of raw materials following the standards outlined in USP <561> to ensure safety and quality.

Aflatoxins

Aflatoxins are naturally occurring mycotoxins produced by specific mold and fungi species that grow on crops and botanicals, so it’s important to know your products are tested for them. Aflatoxin qualification testing at Nature’s Way ensures our suppliers’ testing is reliable and that the ingredients meet the required qualifications.

Pyrrolizidine alkaloids

Nature’s Way tests specific ingredients for pyrrolizidine alkaloids, which are naturally occurring chemical compounds produced by certain plants as a defense mechanism.

The ingredient

The artichoke isn’t just a delicious addition to salads and appetizers—it’s also a plant with a long, varied history. The herb, with its big leaves that originate at the base of the plant, can grow up to over six feet high and is most similar to the thistle plant.

The artichoke is one of the oldest cultivated plants, and it appears in many ancient historical records, including in Greece, Rome, and Egypt. In ancient times, dating as far back as 400 BC, it was used in Roman wellness practices.

Parts used:

Leaf

Alpha Lipoic Acid

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.

Alpha lipoic acid

Nature’s Way tests the potency of every batch of raw material to ensure that you receive the amount of alpha lipoic acid per serving that’s stated 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.

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.

Solvent residue

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.

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.

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.

Cabbage

Brassica oleracea var. capitata L.

Whole vegetable powder

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

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel. 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.

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.

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.

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.

Pesticides

The Environmental Protection Agency (EPA) sets safety limits, known as tolerances, for residual pesticides, and the Food & Drug Administration (FDA) requires botanical suppliers to comply. Nature’s Way verifies compliance with these tolerances through annual or periodic in-house testing of raw materials following the standards outlined in USP <561> to ensure safety and quality.

Aflatoxins

Aflatoxins are naturally occurring mycotoxins produced by specific mold and fungi species that grow on crops and botanicals, so it’s important to know your products are tested for them. Aflatoxin qualification testing at Nature’s Way ensures our suppliers’ testing is reliable and that the ingredients meet the required qualifications.

The ingredient

The botanical powder we use in Super Thisilyn is wild cabbage. Its green leaves are thick and matte-colored like the red cabbage we eat in salads, soups, and kimchi. Edible, rich in nutrients, and high in fiber, wild cabbage includes kale among its many cultivars.

Parts used:

Leaf

Broccoli

Brassica oleracea var. italica

Whole vegetable powder

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

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel. 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.

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.

Heavy metals

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.

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.

Pesticides

The Environmental Protection Agency (EPA) sets safety limits, known as tolerances, for residual pesticides, and the Food & Drug Administration (FDA) requires botanical suppliers to comply. Nature’s Way verifies compliance with these tolerances through annual or periodic in-house testing of raw materials following the standards outlined in USP <561> to ensure safety and quality.

Aflatoxins

Aflatoxins are naturally occurring mycotoxins produced by specific mold and fungi species that grow on crops and botanicals, so it’s important to know your products are tested for them. Aflatoxin qualification testing at Nature’s Way ensures our suppliers’ testing is reliable and that the ingredients meet the required qualifications.

The ingredient

Broccoli, the vegetable we know and love, is a flower—or more technically, tiny bouquets of unopened flower buds. The bristly bunches and stocky stems may not look as beautiful as roses nor smell as sweet, but your body loves them for their vitamins like C, K, and A, minerals including calcium, potassium, and iron, and antioxidants and fiber!

Parts used:

Flower

Stem

Spinach

Spinacia oleracea L.

Spinach powder

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

Verifying each botanical genus, species, and plant part ensures your product contains the exact ingredient listed in the Supplement Facts panel. 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.

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.

Heavy metals

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.

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.

Pesticides

The Environmental Protection Agency (EPA) sets safety limits, known as tolerances, for residual pesticides, and the Food & Drug Administration (FDA) requires botanical suppliers to comply. Nature’s Way verifies compliance with these tolerances through annual or periodic in-house testing of raw materials following the standards outlined in USP <561> to ensure safety and quality.

Aflatoxins

Aflatoxins are naturally occurring mycotoxins produced by specific mold and fungi species that grow on crops and botanicals, so it’s important to know your products are tested for them. Aflatoxin qualification testing at Nature’s Way ensures our suppliers’ testing is reliable and that the ingredients meet the required qualifications.

The ingredient

Long before the superfood gave Popeye supernatural forearms and revived the spinach industry during the Depression, and even before Catherine de Medici brought spinach “Florentine” style to French cooking in the 16th century, spinach grew wild and was known for its wellness benefits in ancient Persia.

The nutrient-rich greens spread to South Asia around the 6th century AD and made their way to Europe relatively recently in the 11th century. Today, spinach ranks among the top leafy greens around the world, and the United States is the industry’s second-largest producer—but at only 3% compared to China’s 90% of global production.

Parts used:

Leaf