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Life Extension vs. NOW Foods vs. Jarrow vs. Nature Made: Which Makes the Best Dietary Supplements?

Life Extension vs. NOW Foods vs. Jarrow vs. Nature Made: Which Makes the Best Dietary Supplements?

    With today’s busy and modern lifestyle, it can be challenging to get enough of the nutrients needed by the body from the food you eat. So more than half of all Americans take one or more dietary supplements daily or on occasion. Supplements are available without a prescription and usually come in pill, powder or liquid form. Common supplements include vitamins, minerals and herbal products, also known as botanicals. People take these supplements to make sure they get enough essential nutrients and to maintain or improve their health. Common dietary supplement brands on the market are Life Extension, NOW Foods, Jarrow, and Nature Made. But which one is the best? Here we reviewed these four brands to help you find the best dietary supplements for your helath, evaluated quality, customer service, and pros and cons, and determined which one is best for you. Let's check out.


1. Life Extension

Life Extension develops and supplies nutritional supplements with a focus on high-quality, pure, and potent ingredients.

With over 40 years of experience in the health and wellness space, Life Extension is a popular brand that offers a huge range of high-quality supplements. The company strives to help people live longer, healthier lives through its line of science-backed nutritional products. 

According to the company, all vitamins and supplements are formulated with pure, independently sourced ingredients. Life Extensions has a strong focus on innovation, and the company’s researchers are continually pushing boundaries to ensure products are years ahead of competitors.


Pros & Cons 


Offers one of the best selections online for nutritional supplements.

Some products are more expensive than those of other companies - but you pay for quality.

Rigorously tests all products sold, ensuring customers get the most effective, potent, and pure products-with no exceptions.

Some customers report that shipping can be 


Significant discounts and incentives for bulk orders and repeat purchases.

Not a huge selection of mushrooms.

A wide array of products to browse on the site

Free access to wellness specialists.

Supplement quiz to help customers find the right supplements for their needs.

100% satisfaction guarantee for one year.

Quality and Efficacy

Perhaps the most compelling reason to choose Life Extension over other companies is its assurance that you’re getting the highest quality and best purity of ingredients. When you buy from Life Extension, you can be guaranteed that what you read on the label is what you get.

  • Life Extension’s focus is on the purity of ingredients over cost. This reduces contaminants such as heavy metals.

  • Only ingredients that have been shown to be successful in scientific studies are used.

  • Adheres to NSF International good manufacturing practices that include bi-annual audits of manufacturing systems and distribution methods.

  • The vast majority of products are non-GMO.

  • Truth in advertising - Life Extension doesn’t use vague or misleading terms like “organic” or “free of excipients” to try to mislead customers.

What is the NSF International?

NSF International was founded in 1944 from the University of Michigan's School of Public Health as the National Sanitation Foundation (NSF) to standardize sanitation and food safety requirements. The process established to develop NSF International's first standards regarding the sanitation of soda fountain and luncheonette equipment, became the process by which NSF International developed other public health and safety standards. To date, NSF has developed more than 80 public health and safety American National Standards. As NSF expanded services beyond sanitation and into new international markets, the name was changed to NSF International in 1990.

NSF International is an accredited, independent third-party certification body that tests and certifies products to verify they meet these public health and safety standards. Products that meet these standards bear the NSF mark.

Customer Service

It’s rare to find such big supplement companies with outstanding customer service, but Life Extension is one such brand. They have a 24-7 toll-free customer service center, which operates seven days a week. Any questions or concerns you have, you can reach out to the team at any time.

Additionally, Life Extension has its own Wellness Specialist team available from Monday – Friday between 8 AM to 1 AM and on weekends between 9 AM and 1 AM (ET). This is a team of medical and nutritional experts that can help customers with all their health and wellness needs.

It’s also worth noting that the customer has an incredible 100% satisfaction guarantee. Customers have a full year to return products they’re not happy with and will receive a full refund.

Return Policy

Life Extension wants to make sure you are happy with your purchases. To facilitate this goal, they have adopted a simple, liberal return policy: if you are unsatisfied in any way, return your purchase within 12 months of the purchase date and they will replace the product or credit your account. For further information, contact their customer service department.

Where to send your returned purchases:

  • Product Returns

Life Extension Northeast Fulfillment

Attention: Returns

150 Fieldcrest Ave

Edison, NJ 08837

  • Blood Tests Returns

Please call our Wellness Specialist department at 800-226-2370.

Where to buy Life Extension?

You can gLife Extension official website to buy Dietary Supplements, and don't forget to sign up at Extrabux (What is Extrabux?) , then you can get 6% super cashback from Extrabux! Sign-Up Bonus: Free to join it & get $20 welcome bonus!


1. Free shipping on orders $50+;

2. Join Life Extension Premier Rewards for free shipping & 4% LE Dollars back on every Life Extension purchase;

3. Choose AutoShip & Save and save an average of 16%;

4. Sign up at Life Extension for $10 off + free shipping.

What In Unique: Lab Testing

Besides this huge selection of vitamins, supplements, hormones, and herbs, Life Extension also offers competitively priced lab testing.

Popular tests like Male Panel, Female Panel, Weight Loss Panel, and Food Safe Allergy Tests can be performed simply and at a fraction of the price of a hospital test.

2. NOW Foods

Founded in 1968 by Elwood Richard, a trained nutritionist, NOW Foods has been around for more than 50 years and has established itself as a big player in the natural products industry. NOW Food produces high-quality natural products at prices everyone loves. They are a respected leader in the natural products industry, with a mission to provide value in products and services that empower people to lead healthier lives.

They have carefully crafted a high-quality supplement line that consists of more than 1,400 products, selling everything from foods and supplements to sports nutrition and beauty products.

NOW Food supplements are sold all around the world, but the company is headquartered in Bloomingdale, Illinois. They claim to be one of the premier manufacturers in the natural products industry and own and operate several manufacturing and distribution facilities in the U.S. and Canada.


Pros & Cons 


More than 1,400 products on offer.

No customer reviews on NOW’s website.

A family-owned company passionate about health foods and supplements.

Very affordable products.

Strong focus on environmental sustainability.

Quality and Efficacy

As a leading natural products company, their dedication to superior quality at value prices has propelled them from local health food store to industry leader offering the absolute best variety of high-quality supplements, essential oils, foods, and more.

Quality Natural Products

Natural at NOW means products are sustainable, plant-derived, and finished as close to nature as possible without any harmful substances.

High-Quality Starts with Clean Ingredients

Their strict requirements for ingredient quality and comprehensive scientific processes ensure that every lot of ingredients accepted into their facilities meets their stringent specifications.

Comprehensive Levels of Testing

Their state-of-the-art, in-house laboratories test everything from raw ingredients to finished products to ensure that what’s on the label is in the bottle or package.

Superior Manufacturing

NOW meets and exceeds the FDA's CGMPs to underscore their commitment to quality. NOW was one of the first companies to be CGMP certified by a third-party.

NOW Foods' products are formulated without artificial ingredients and are minimally processed. You can read all about the company’s dedication to natural ingredients, as well as a list of ingredients that they will never use on their website.

To ensure products meet their high standards NOW controls the manufacturing process from start to finish. They operate a 24-hour manufacturing facility in Bloomingdale where Good Manufacturing Practices (cGMP) are employed at every step.

Customer Service

If you have any questions, you can consult them through the customer service phone.

  • Corporate Offices

244 Knollwood Drive | Bloomingdale, IL 60108 | Telephone: 888-669-3663

  • Midwest Operations

395 S. Glen Ellyn Road | Bloomingdale, IL 60108 | Telephone: 888-669-3663

  • Western Operations

575 Vista Blvd. | Sparks, NV 89434 | Telephone: 888-669-3663

  • Midwest Distribution Center

1620 Central Ave. | Roselle, IL 60172 | Telephone: 888-669-3663

  • Canadian Division

#5 - 5068 Whitelaw Road, RR6 | Guelph, ON N1H 6J3 | Telephone: 800-265-7245

Click here to find more contact methods.

Return Policy

New, unopened items that were purchased through can be returned within 30 days of purchase for a full refund.  They are not responsible for the cost of return shipping.  Payments made with a credit card will be refunded to the card used for your order.  Returns will not be accepted after 30 days. 

Damaged and wrongly shipped items may be requested to be returned to them within 30 days at no cost to the purchaser unless there are reasonable circumstances why this cannot be done.

Note: This Return Policy only applies to products purchased from and not from their retailer site, nor other websites or retail stores.  Customers should consult the return policy of the original place of purchase.

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3. Jarrow

Jarrow Formulas is based in Los Angeles, California, and is a formulator and supplier of superior nutritional supplements. The company was founded in 1977 and today it markets its products in the United States and throughout the world. Jarrow Formulas' goal is to promote optimal health based on sound scientific research data. The company’s complete line of nutritional products includes vitamins, minerals, probiotics, standardized herbal concentrates, amino acids, enzymes, and enteral nutrition products. 


Pros & Cons 


The products are affordable.

To get the most out of the supplements, you may have to stack multiple.

Most supplements are a single ingredient – less confusing.

There is little overlap of ingredients in weight-loss formulas.

Quality and Efficacy

All Jarrow Formulas products are manufactured in Current Good Manufacturing Practices (cGMP) certified facilities.  These regulations govern the manufacturing, storing, labeling and distributing of ingredients and finished products as they transit the supply chain.  Under the cGMP regulations, manufacturers are required to evaluate the identity, purity, strength and composition of both ingredients and finished products to ensure that products are accurate and meet specifications.   Moreover, the vast majority of their products are manufactured by our sister company, Jarrow Industries, a state-of-the-art cGMP certified factory featuring pharmaceutical grade equipment and levels of quality control. 

Jarrow Formulas invests significant time in qualification and ongoing auditing of raw material suppliers to ensure only the purest ingredients are used in Jarrow Formulas’ products.  Both Jarrow Formulas and Jarrow Industries have dedicated quality control teams that follow standard operating procedures outlining stringent inspection processes of incoming as well as outgoing products.  High performance thin layer chromatography (HPTLC; FDA recommended methodology) is performed on all incoming botanical materials to confirm unadulterated ingredient identities using verified botanical reference material (prior to use in manufacturing.  Jarrow Industries tests manufactured products by lot (e.g., capsules/tablets) to verify active ingredients prior to packaging (e.g., bottling, blister packaging); furthermore, Jarrow Formulas contracts cGMP certified laboratories to test packaged, finished product lots to confirm ingredient specifications prior to distribution for sale.  

Customer Service

Jarrow Formulas is open Monday through Friday. Their customer service department is available to serve you from 8:00 am until 5:00pm PST.

  • Telephone

(310) 204-6936

  • Fax

(310) 204-2520

  • Address

1818 S Robertson Blvd

Los Angeles, CA 90035

  • Questions / Comments

  • Sales

  • Media Inquiries

Return Policy

If you are dissatisfied with an Eligible Product in any way, within sixty (60) days of the date of purchase of the Eligible Product, you may return the Eligible Product and request any one (1) of the following: a) a full refund of the purchase price, b) a credit in the amount of the purchase price redeemable for purchases made on their website or Jarrow Formulas’ webpages linked to their website or c) replacement of the Eligible Product.

To request a refund, credit, or replacement of an Eligible Product, please email for a return authorization. In your email, please include a) the original order number and name of the Eligible Product you are returning, b) the proof of purchase for the Eligible Product, c) the lot number and expiration date of the Eligible Product,] and d) whether you are requesting a refund, credit, or replacement of the Eligible Product.

After receipt and review of the information provided above, Jarrow Formulas® Credit Department will issue a return authorization and email further instructions, which will include shipping information so that you can return the unused portion of the Eligible Product to them. In general, any Eligible Product may be returned previously opened and/or without its original seal. However, in order to qualify for a refund, credit or replacement, the returned Eligible Product must not be missing more than thirty (30) days’ worth of the Eligible Product’s serving size as noted on the label and must be returned with the original packaging[, including any ice packs included with such packaging].

Requests for refunds, credits, and replacement of Eligible Products will be processed upon receipt of the returned Eligible Product in their Credit Department. Refunds and shipping and handling reimbursements for the return of Eligible Products will be issued via the form of payment used for the original purchase of the Eligible Product. Please allow up to five (5) business days of processing time for refunds to your bank account or PayPal account.

Where to buy Jarrow?

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4. Nature Made

At Nature Made, they create thoughtfully designed products to fit your lifestyle needs at every stage. 

Nature Made is the brand consumers trust for their daily vitamins and can be found in almost any grocery store. This is the reason why they have a lot of customers who use them for their health products.

Some of their notable products include a fish oil supplement, a melatonin supplement, and multivitamin tablets. They are also known because they utilize unique combinations of vitamins to create their supplements.

Nature Made creates products for all kinds of people, including pregnant women, senior citizens, athletes, and those who need to lose weight.

Moreover, Nature Made has added natural fruit flavors to some of its products to make them more appealing to the customers.


Quality and Efficacy

With Nature Made you can rest assured that you are taking vitamins and supplements that are manufactured to FDA standards in an NSF GMP-certified facility that meets accepted industry processes and procedures.

Nature Made’s high-quality standards extend to every aspect of its business-from sourcing ingredients, through product manufacturing, packaging, and shipping, right up to product sale and after-service assistance.

In fact, Nature Made boasts that they have the largest number of USP verified products and are the number 1 recommended brand by Pharmacists.

USP (The United States Pharmacopeia)

The United States Pharmacopeia (USP) is the national public standards-setting authority for all prescription and over-the-counter medicines, dietary supplements, and medical devices for human use. Using scientific procedures and methods, the standards have been set to protect and improve public health. As a nonprofit organization, USP’s mission is to ensure that the medicines Americans depend on are safe, effective, and of high quality. Since 1820, USP has been developing public standards for medicines, to ensure their identity, strength, quality, and purity. Products labeled with USP Verified mark conform to the quality standards for identity, strength, quality, and purity established by USP. As a nonprofit organization, USP’s mission is to ensure that the medicines Americans depend on are safe, effective, and of high quality.

FDA (U.S. Food and Drug Administration)

The FDA is responsible for protecting public health. The FDA ensures that products are safe and properly labeled. That’s why you can be confident that vitamins made in the U.S.A. meet or exceed the quality standards set by FDA for safety, purity, and efficacy.

NSF & GMP (National Sanitation Foundation) GMP (Good Manufacturing Practices) 

Certification is a certification that ensures purity from the manufacturing facility to the consumer. All manufacturers with NSF GMP Certification are required to follow strict guidelines in all areas of facility and product cleanliness, testing protocols, raw materials, facility maintenance, air quality, equipment, and instrument calibration through a rigorous inspection by NSF GAP Certified Inspectors.

So as you can see, when Nature Made says they have the largest number of USP verified products, are manufacturer to FDA standards, and are certified with national sanitation and good manufacturing practices, it is a big deal and speaks volumes about the quality of this brand and their products.

Customer Service

Click here to email a Nature Made expert with your question, or call them at 1-800-276-2878.

Return Policy

If you are not completely satisfied with your product, you may request a refund of your payment (less any applicable shipping fees) or a replacement within 30 days of receipt. This policy is only applicable for products purchased from them directly at If you purchased from a different retailer please refer directly to their return/refund policy.  

To receive your refund or replacement, please contact them or email them at  For faster service, please have your order confirmation number and your original packaging available.  They may also request that you return your product, although such return is not required in order for you to receive your refund or replacement.

Please allow 5 – 7 business days for your refund to process. Your refund will be processed to original payment method provided at time of purchase.  Please allow 7 – 10 business days to receive your replacement product, if you have requested a replacement. Due to item availability, some replacements may be delayed or changed to a refund.

Please note that your refund will be subject to an $8.00 shipping fee if your total order was less than $25.00 or if your order was shipped outside the contiguous 48 states.

Where to buy Nature Made?

Go iHerb to buy Nature Made through Extrabux, then you can get up to 6% super cashback. You can also go to Nature Made official website.

2021-11-04 02:347190