Quality, Purity & Efficacy

How does Life Extension ensure the quality of its products?

Our commitment to quality starts with a keen focus on two specific areas:

• Raw materials: Unlike other supplement companies, the ingredients that go into our formulas are not chosen based on cost. Instead, each ingredient is selected based on purity, potency, and usage in successful scientific research. We also ensure contaminants such as microbes and heavy metals comply with regulatory and GMP requirements.
• Scientific validation: To ensure maximum efficacy, we use ingredients and dosages that accurately replicate the most successful results obtained in scientific studies.

Do your products adhere to Good Manufacturing Practices?

Yes. The Dietary Supplement Health and Education Act of 1994 requires dietary supplements to comply with Good Manufacturing Practices (GMP). Life Extension is GMP registered with NSF International.

This registration is based on rigorous bi-annual audits of our distribution operations and quality systems and indicates full compliance with applicable areas of 21 CFR Part 111, Current Good Manufacturing Practice in Manufacturing, Packaging, Labeling, or Holding Operations for Dietary Supplements.

Does the label accurately list what’s in the bottle?

Yes. In strict compliance with our demanding product specifications, our labels list all active ingredients from patented, scientifically validated raw materials as well as final, finished products. The ingredients are verified using advanced analytical methods like high performance liquid chromatography and mass spectrometry to ensure every product accurately meets label claims.

What are the “Other Ingredients” on the label, and why are they important?

They are inactive ingredients, known as excipients, that play essential roles in the manufacturing process, including:

• Achieving uniform density for accurate dosing
• Dispersing the active ingredients evenly
• Protecting active ingredients from heat and moisture
• Helping tablets disintegrate or dissolve
• Sustaining the release of active ingredients into the body over time

Are inactive ingredients bad for you?

No. The right inactive ingredients, or excipients, used in the right way do important things, like keeping a product from breaking down in your system before you can get the benefit out of it. All of the excipients Life Extension uses have earned GRAS (Generally Recognized As Safe) status. In many cases, not using them would compromise final product quality!

Should I be concerned about the use of stearic acid?

No. Stearic acid functions as a flow agent in the manufacturing of quality products and also occurs naturally in the foods you eat. We always use the lowest level of stearic acid possible; our supplements typically contain no more than 10 mg per capsule. On the other hand, most of the foods you eat contain at least 1000 mg of stearic acid in one serving.

Are products with soybean oil or lecithin a hidden source of phytoestrogens?

Even though soy isoflavones are phytoestrogens, the number of phytoestrogens in soybean oil or soy lecithin (based on USDA data) is so minute it's insignificant.

Are Life Extension products non-GMO?

Yes, the vast majority of Life Extension products are non-GMO. We follow a rigorous documentation analysis of all active ingredients as well as all inactive ingredients and excipients to ensure this designation is accurate.

If you are unsure whether a product is non-GMO, look for the "Non-GMO" icon, which you'll find on our product labels, our website and our annual product directory. Feel free to contact us directly if you have any questions about the GMO status of a specific product.

Does the gelatin used in softgels and capsules contain MSG?

No, gelatin does not contain MSG. Our softgels or capsules do not contain MSG.

Why aren’t Life Extension products organic?

"Organic" relates to how foods are grown, and many of our raw materials are not produced organically because they are scientifically formulated. However, due to our rigorous testing and high standards, we do guarantee purity both in terms of our raw materials and our finished products.

Are Life Extension products labeled “vegetarian” also vegan?

Products that are labeled "vegetarian" do not contain any ingredients that are products or byproducts of harvested animals. However, our vegetarian products are not always vegan because they may include ingredients derived from live animals or their work byproduct, such as eggs, dairy, beeswax, etc.

Have product questions or concerns? Call a Life Extension Wellness Specialist at 1-800-226-2370 for the answers you need.