You should know how far we carry our commitment to Quality, Purity & Efficacy
Life Extension® develops and manufactures premium-quality supplements based on the latest scientific research studies. Products are developed using scientifically validated ingredients and scientifically supported dosing. Patent-protected raw materials are carefully processed to preserve chemical complexity, ensure purity, and maintain efficacy. Each product is manufactured to GMP (Good Manufacturing Practice) standards and backed by our satisfaction guarantee. We are so confident that our products are the best available, we offer a 100% satisfaction guarantee that is one of the strongest in the industry. Specifically, if for any reason you are not fully satisfied, you may request a full refund of the purchase price within one year of product purchase.
Our customers are sophisticated, deeply concerned with protecting their health, and they demand the best in nutritional supplementation. From time to time, we receive questions from consumers regarding our formulations. Some of the more common questions and answers involving quality, purity, and efficacy of our formulations are provided below.
Q. What does Life Extension do to ensure the quality of its products?
A. We focus on three specific areas.
- Raw Materials: Unlike other supplement companies, the ingredients that go into our supplements are not chosen based on cost. Instead they are chosen based on purity (to ensure contaminants such as microbes and heavy metals comply with regulatory and GMPs requirements), potency, and usage in successful scientific research.
- Validation of the Efficacy of Ingredients by Scientific Research: We use ingredients and dosages that accurately replicate the most successful results obtained in scientific studies for maximum efficacy.
- Manufacturing: Naturally, we are in strict compliance with current Good Manufacturing Practice (GMP) for manufacturing, packaging, and storage.
Q. Does the label accurately list exactly what’s in the bottle?
A. Yes. All active ingredients from patented, scientifically validated raw materials as well as final, finished products are verified using advanced analytical methods such as HPLC (highperformance liquid chromatography), MS (mass spectrometry), etc., to ensure each and every product accurately meets label claims in strict compliance with our demanding product specifications.
Q. When it comes to supplements, is cost an indicator of quality?
A. Where Life Extension is concerned, yes. Patented materials validated in scientific studies cost more — period. In contrast with many commercial brands focused on driving up margins by using the cheapest raw materials available, Life Extension collaborates with raw material suppliers who invest in scientific validation of their ingredients, which increases material costs. With Life Extension products, you get the quality you pay for.
Q. What are the “Other Ingredients” on the label, and why are they important?
A. They are inactive ingredients (excipients) that play a number of critical, essential roles in the manufacturing process including:
- Achieving uniform density for accurate dosing
- Dispersing the active ingredients evenly throughout a solid tablet, capsule, and softgel
- Protecting active ingredients from rapid inactivation due to heat and moisture
- Promoting tablet disintegration, as well as capsule and softgel dissolution
- Sustaining the release of active ingredients into the body over time
In short, excipients are critical for the manufacture of quality formulations. Naturally, we choose these extra ingredients with great care and use them as sparingly as possible.
Q. Why do some companies refer to these excipients as a threat to your health?
A. Claiming any product is “pure and free of excipients” can be deceptive advertising, too frequently used to draw attention away from inferior active ingredients! The right inactive ingredients used in the right way do important things … like ensuring that a tablet disintegrates in your GI tract rather than just passing through your system without benefit, or keeping a product from breaking down and being susceptible to microbes. Take Life Extension blueberry extract, for example. It contains AuroraBlue® wild-harvested, Alaskan blueberries. To retain their nutritional complexity, these berries are freeze-dried and carefully milled for capsule formulation. But being a whole fruit raw material, it tends to want to reconstitute itself with moisture, which would make it a breeding ground for bacteria. So Life Extension uses a drying excipient to keep the milled blueberry material dry, so it can safely deliver its superior nutritional value compared with other, less costly blueberry extracts in most commercial formulations.
All of the excipients Life Extension uses have earned GRAS (“Generally Regarded As Safe”) status … and are used sparingly. In many cases not using them compromises final product quality! Excipients are used in nutritional supplements to ensure uniform density of complex active materials, to achieve even dispersion of active ingredients, and to promote appropriate disintegration and/or dissolution of active ingredients inside your body … to name but a few of the critical roles played by excipients.
Q. Should I be concerned about the use of stearic acid?
A. No. Stearic acid functions as a flow agent in the manufacture of quality products, and stearic acid also occurs naturally in the foods you eat. For example:
- Four ounces of dark chocolate contain 3,625 mg of stearic acid
- One cup of kidney beans contains 1,655 mg of stearic acid
- An ounce of raw ground beef (grass-fed) contains 2,063 mg of stearic acid
- A half pound of lean raw turkey contains 1,642 mg of stearic acid
- Even a tablespoon of allspice contains 1,513 mg of stearic acid
Our supplements, on the other hand, typically contain no more than 10 mg per capsule. We always use the lowest level of magnesium stearate possible.
Q. Should I be concerned that products with soybean oil or lecithin are a source of phytoestrogens?
A. While it is true that soy isoflavones are phytoestrogens, the amount of phytoestrogens in soybean oil or soy lecithin is so minute, the USDA lists it in foods as having zero value for isoflavones. To give you a frame of reference, Life Extension's Fucoxanthin-Slim™ softgels contains only 0.0024 grams of soy lecithin per softgel, and thus no phytoestrogens.
Q. What is Life Extension’s Position on GMO?
A. In response to customer inquiries regarding GMO, Life Extension launched a major initiative to affirm the non-GMO status of its products. During 2015-2016 additional staff were hired to address the issue of GMO. As a result, hundreds of products were carefully evaluated and the vast majority of Life Extension’s product line (400+ products as of April 2019) are self-affirmed as non-GMO. The detailed investigation includes rigorous documentation analysis of all active ingredients as well as all inactive ingredients such as excipients. Expensive GMO testing is also used as part of the investigation. Please note that since this is an ongoing initiative, with more products to investigate as well as all new incoming products, we are still in the process of placing this information on product labels, and on our website and directory product descriptions. Thus, if you do not see “Non-GMO” on the product label that does not mean that the product contains GMO ingredients; it could mean the new label with “Non-GMO” has not been printed yet. You are always welcome to contact us if you have a question on the GMO status of a specific product.
Q. Does the gelatin used in softgels and capsules contain MSG?
A. Gelatin does not contain MSG … but does contain about 0.03 grams of glutamic acid in one softgel. To put this small amount in perspective, a person ingests about 120 times more glutamic acid in a serving of asparagus, cabbage or tomatoes!
Q. What’s the difference between tablets, capsules and softgels?
A. Sophisticated products require sophisticated delivery systems. The best companies choose the most effective finished form based on the characteristics of the raw materials, and the desired disintegration or dissolution characteristics of the finished product and the active ingredients.
Q. Why aren’t Life Extension products organic?
A. The word “organic” conveys the perception of quality to consumers. But it actually relates to foods that are grown rather than products that are formulated. Many of our scientifically validated raw materials are not produced organically. Rather, our mandate includes rigorous testing and scrupulous processing. The objective is purity … both in terms of our raw materials and our finished products.
Other product questions or concerns?
Call a Life Extension Wellness Specialist at 1-800-226-2370 for the answers you need.
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