We may not have personally tested every product. This review is based on official product information, product specifications and comparative research. It is not medical advice.
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Life Extension Two-Per-Day Multivitamin, 120 Capsules
A 60-day high-potency multivitamin with more than 25 vitamins, minerals and extracts, including 2,000 IU vitamin D3, 75 mg vitamin B6 and 25 mg zinc.
Life Extension Magnesium Caps, 500 mg, 100 Capsules
A low-cost vegetarian capsule combining magnesium oxide, citrate and succinate with 500 mg elemental magnesium per capsule.
Life Extension Super Omega-3, 120 Enteric-Coated Softgels
IFOS-certified fish oil providing 700 mg EPA and 500 mg DHA per two softgels, plus olive polyphenols and sesame lignans.
Life Extension Mix Powder, 30 Servings
A high-potency multi-nutrient powder with vitamins, minerals, NAC, broccoli, green-tea extract, ashwagandha and numerous fruit and botanical extracts.
What is Life Extension?
Life Extension is a privately owned U.S. vitamin, supplement and laboratory-testing company founded in 1980. It is headquartered in Fort Lauderdale, Florida, and currently sells more than 400 supplements across over 40 health categories.
The brand is known for high-potency formulas, detailed Supplement Facts panels, specialty longevity products and an extensive health-education library. Its catalog ranges from basic vitamins and minerals to fish oil, probiotics, hormones, botanical extracts, cognitive products and complex multi-ingredient formulas.
Life Extension states that 99% of its supplements are manufactured in the United States using ingredients sourced worldwide. The company is Good Manufacturing Practices registered with NSF International and says customers can request a Certificate of Analysis for every product.
Our quick verdict
Life Extension earns a 4.8/5 editorial rating. It offers unusually transparent formulas, competitive pricing and a generous 365-day return policy. Its AutoShip program is flexible and includes free U.S. standard shipping.
Two-Per-Day Multivitamin is the best overall introduction for adults who have a reason to take a broad high-potency multivitamin. Magnesium Caps is exceptionally inexpensive but provides a large 500 mg supplemental dose. Super Omega-3 combines a substantial EPA and DHA amount with IFOS-certified fish oil, while Life Extension Mix Powder is the most comprehensive but also the most difficult formula to use safely.
The main drawback is that “high potency” can easily become excessive when products are combined. Life Extension Mix supplies 105 mg vitamin B6 per daily serving—slightly above the current U.S. adult upper limit of 100 mg—and Two-Per-Day provides 75 mg. Magnesium Caps provides more supplemental magnesium in one capsule than the NIH adult upper limit of 350 mg from supplements and medications.
How Life Extension approaches quality
Life Extension says its raw materials are selected for purity, potency and use in published research rather than primarily by price. The company reports testing for identity, strength and contaminants using methods such as high-performance liquid chromatography and mass spectrometry.
Important quality signals include:
- NSF International GMP registration
- Biannual audits of distribution operations and quality systems
- Third-party testing of raw materials and finished products
- Certificates of Analysis available upon request
- Label verification for active ingredients
- Testing for microbes and heavy metals according to regulatory and GMP requirements
These practices can improve confidence that the bottle matches the label. They do not establish that every formula is necessary, optimally dosed or clinically proven for every advertised health outcome.
Best overall: Two-Per-Day Multivitamin, 120 Capsules
Two-Per-Day Multivitamin is a high-potency multivitamin taken as two capsules daily in divided doses with meals. The 120-capsule bottle provides 60 servings.
The current one-time price is $19.13, while AutoShip is listed at $17.00. This is strong value for a two-month supply.
Notable quantities per two-capsule serving include:
- Vitamin C: 470 mg
- Vitamin D3: 50 mcg / 2,000 IU
- Vitamin E: 67 mg
- Vitamin B1: 75 mg
- Vitamin B2: 50 mg
- Niacin: 50 mg
- Vitamin B6: 75 mg
- Folate: 680 mcg DFE as 5-MTHF
- Vitamin B12: 300 mcg as methylcobalamin
- Magnesium: 100 mg, primarily as magnesium oxide
- Zinc: 25 mg
- Selenium: 200 mcg
- Chromium: 200 mcg
The formula also includes alpha-lipoic acid, quercetin, lutein, zeaxanthin, apigenin, boron and lycopene.
Strengths of Two-Per-Day
- Broad nutrient coverage in only two capsules
- Active folate and methylcobalamin forms
- Meaningful vitamin D and zinc amounts
- Carotenoids and selected antioxidant compounds
- Low daily cost
- Gluten-free and non-GMO positioning
The product can help fill nutrient gaps when diet, age, restricted eating patterns or healthcare guidance supports multivitamin use.
Two-Per-Day safety concerns
The formula is much more concentrated than a basic one-daily multivitamin. NIH notes that some multivitamins supply nutrients above recommended amounts and that they cannot replace a varied diet containing fiber and other beneficial food compounds.
The 75 mg vitamin B6 amount is below the current U.S. adult upper limit of 100 mg, but it leaves little room for another B-complex, energy drink, magnesium sleep product or fortified food. Long-term excessive B6 intake can cause sensory nerve damage.
The 25 mg zinc amount is also substantial. Long-term high zinc intake can interfere with copper status. The formula contains no copper, so customers using it long term should not automatically add more zinc from immune products.
Two-Per-Day provides 200 mcg selenium and 50 mcg vitamin D. Count separate selenium, vitamin D and multivitamin products before combining them.
People with high blood calcium, kidney disease, thyroid conditions, pregnancy or prescription medication should review the complete formula with a qualified healthcare professional.
Best budget mineral: Magnesium Caps, 500 mg
Magnesium Caps combines magnesium oxide, citrate and succinate. Each vegetarian capsule provides 500 mg elemental magnesium.
The 100-capsule bottle is currently listed at $9.00, with an AutoShip price of $7.50. This is one of the lowest costs per milligram in the brand’s catalog.
Life Extension suggests taking one capsule one to three times daily or following professional guidance. That label direction deserves caution because one capsule already provides a large supplemental amount.
Why the 500 mg dose deserves caution
NIH lists an adult upper limit of 350 mg per day from magnesium supplements and medications. This limit does not include magnesium naturally present in food.
The 500 mg capsule exceeds that upper limit by itself. Exceeding the limit does not mean every user will experience harm, but it increases the likelihood of diarrhea, nausea and abdominal cramping.
Magnesium oxide is generally less efficiently absorbed and more likely to have a laxative effect than several chelated forms. The citrate and succinate components may improve the overall profile, but the label does not disclose how much comes from each form.
A lower-dose magnesium glycinate or citrate product may offer more flexible dosing for users who need less than 500 mg.
Magnesium interactions
Magnesium can interfere with the absorption of:
- Some antibiotics
- Bisphosphonate osteoporosis medications
- Selected thyroid medicines
Diuretics and long-term acid-reflux medications can also affect magnesium status. People with impaired kidney function should not use large magnesium doses without medical supervision because the kidneys remove excess magnesium from the body.
Best omega-3 product: Super Omega-3 EPA/DHA Fish Oil
Super Omega-3 EPA/DHA Fish Oil, Sesame Lignans & Olive Extract is the brand’s flagship fish-oil formula. The featured bottle contains 120 enteric-coated softgels.
The current price is $30.00 one time or $25.00 with AutoShip.
Every two-softgel serving supplies:
- 2,000 mg wild-fish-oil concentrate
- 700 mg EPA
- 500 mg DHA
- 300 mg standardized olive extract
- 10 mg sesame lignan extract
The combined EPA and DHA amount is 1,200 mg per two softgels. Life Extension’s current dosage direction is two softgels twice daily with meals, which would provide 2,400 mg EPA plus DHA per day.
Omega-3 evidence in context
EPA and DHA are important components of cell membranes. Increasing intake can lower triglyceride levels, but benefits for cardiovascular prevention, cognition and other outcomes depend on the person, baseline diet and dose.
NIH notes that the American Heart Association recommends one to two seafood servings per week for general cardiovascular health. For people with heart disease, approximately 1 g EPA plus DHA daily may be considered, preferably through fish, with supplements used under professional guidance.
A high-dose fish-oil supplement should not automatically replace eating oily fish or treating a diagnosed lipid disorder.
Super Omega-3 safety and allergens
The formula is made from fish including anchovy, jack mackerel, mackerel and sardine and also contains sesame. It is therefore unsuitable for people with relevant allergies.
Life Extension specifically advises customers taking anticoagulant or antiplatelet medications, or those with a bleeding disorder, to consult a healthcare provider first.
Fish oil can cause fishy burps, nausea, loose stool or reflux. The enteric coating and lemon flavor may reduce aftertaste but do not guarantee complete tolerance.
Most comprehensive formula: Life Extension Mix Powder
Life Extension Mix Powder is a 30-day high-potency multi-nutrient formula. The 360 g container is currently priced at $60.00, with an AutoShip price of $54.00.
The daily serving is three scoops, approximately 12 g, divided with meals. The powder may not dissolve completely.
Important amounts per daily serving include:
- Vitamin C: 970 mg
- Vitamin D3: 50 mcg / 2,000 IU
- Niacin: 190 mg
- Vitamin B6: 105 mg
- Vitamin B12: 600 mcg
- Biotin: 3,000 mcg
- Pantothenic acid: 600 mg
- Magnesium: 420 mg
- Zinc: 35 mg
- Selenium: 200 mcg
- Chromium: 500 mcg
- N-acetyl-L-cysteine: 600 mg
- Broccoli concentrate: 525 mg
- Decaffeinated green-tea extract: 325 mg
- Ashwagandha extract: 125 mg
It also contains fruit and berry powders, taurine, inositol, milk-thistle extract, pomegranate, grape seed, bilberry, quercetin, bromelain, olive extract, lutein, apigenin and other compounds.
Why Life Extension Mix is not a greens replacement
The formula contains plant extracts, but a full daily serving provides only 15 calories and 4 g carbohydrate. It does not supply the water, dietary fiber, potassium, protein and food structure found in multiple servings of vegetables and fruit.
Life Extension Mix is better understood as a high-potency supplement stack in powder form—not as a substitute for meals or produce.
Major cautions with Life Extension Mix
The 105 mg vitamin B6 amount slightly exceeds the current U.S. adult upper limit of 100 mg per day. This is the most important long-term concern, particularly when another multivitamin, B-complex or fortified drink is used.
The 420 mg magnesium amount also exceeds the NIH supplemental upper limit of 350 mg. The product includes several magnesium forms, but gastrointestinal tolerance may still be an issue.
The 190 mg niacin amount can cause flushing, itching, rash or stomach upset. Life Extension recommends liver-function testing when total niacin intake exceeds 500 mg daily.
The powder also contains 35 mg zinc, 500 mcg chromium, ashwagandha, NAC and many botanical extracts. This creates a much larger interaction profile than a standard multivitamin.
Life Extension advises consulting a doctor when using anticoagulant medication. People with Wilson’s disease should avoid chronic use of the copper-containing version.
Life Extension Mix and medication review
A professional review is especially important for people using:
- Anticoagulant or antiplatelet medication
- Diabetes medication
- Thyroid medication
- Blood-pressure medication
- Immune-suppressing medication
- Sedative or seizure medication
Ashwagandha may affect thyroid function, blood pressure, blood glucose, sedation and immune activity. NAC and botanical extracts also have potential interactions.
Product comparison
ProductServingCurrent one-time priceBest for Two-Per-Day Multivitamin2 capsules; 60 servings$19.13Best general introduction Magnesium Caps500 mg per capsule; 100 capsules$9.00Budget magnesium under professional guidance Super Omega-3700 mg EPA + 500 mg DHA per 2 softgels$30.00High-potency fish oil Life Extension Mix Powder3 scoops; about 30 servings$60.00Experienced users seeking an extensive formulaWhich product offers the strongest value?
Two-Per-Day offers the strongest general value because a 60-day bottle costs less than many 30-day multivitamins. The formula is concentrated enough that customers should not add another multivitamin.
Magnesium Caps has the lowest cost but not necessarily the best dose flexibility. A low price does not offset the risk of taking more magnesium than needed.
Super Omega-3 is competitively priced for 1,200 mg EPA plus DHA per two-softgel serving and IFOS-certified fish oil.
Life Extension Mix is expensive but replaces several separate products. It only represents value when the full complex formula is appropriate.
Life Extension versus food-first nutrition
Supplements can help correct or prevent nutrient gaps, but NIH emphasizes that multivitamins cannot replace varied foods. Whole foods supply fiber, essential fatty acids, protein and thousands of compounds in combinations that pills do not reproduce.
Useful questions before ordering include:
- Is there a documented deficiency?
- Is the diet restricted?
- Does a clinician recommend this nutrient?
- Is the product intended for a defined sports or medical goal?
- Will it duplicate another supplement?
Common stacking mistakes
- Combining Two-Per-Day with Life Extension Mix
- Adding a B-complex to either high-potency formula
- Taking Magnesium Caps with a magnesium sleep powder
- Adding separate zinc, selenium or vitamin D without calculating totals
- Using full-dose fish oil while taking anticoagulant medication without review
- Starting several supplements simultaneously, making side effects difficult to identify
AutoShip & Save
Life Extension’s current AutoShip program offers:
- The lowest available advertised or AutoShip price
- Average annual customer savings of approximately 16%
- Free standard shipping throughout the United States, including Alaska and Hawaii
- Custom shipment frequencies
- The ability to add or remove products
- Pause or cancel without a minimum number of shipments
The exact discount varies by product. The featured products currently show savings between approximately 10% and 17%.
Shipping
Current U.S. standard shipping is free on orders of $50 or more. Orders below $50 cost $5.50. Standard delivery is generally listed at three to five business days.
Life Extension ships internationally, but product restrictions, duties, customs fees and fulfillment partners vary by country. Customers in Vietnam and several other Asian countries may be directed to a regional partner rather than the U.S. checkout.
International buyers should confirm that every ingredient is legal to import before ordering. Life Extension states that it may not refund orders refused, abandoned or seized by customs.
Returns and satisfaction policy
Life Extension currently provides one of the longest supplement return periods: up to 365 days from purchase for qualifying direct orders.
Customers can request a refund, exchange or replacement. Some returns may incur a $5.50 prepaid-label fee, and not every item or international destination qualifies for online return processing.
The company says products do not always need to be unopened, depending on the reason for the return. Save the order number and contact support before discarding the bottle.
What we like
- Detailed Supplement Facts and active ingredient forms.
- Very competitive prices.
- GMP registration and third-party testing.
- Certificates of Analysis available on request.
- Flexible, no-minimum AutoShip program.
- 365-day return policy.
What could be better
- Several formulas use unusually high nutrient doses.
- Magnesium Caps lacks flexible dose control.
- Life Extension Mix has a very complicated interaction profile.
- Some benefits are marketed more confidently than the evidence supports.
- International shipping and customs rules are complex.
- Large catalog makes unnecessary stacking easy.
Who should consider Life Extension?
- Experienced supplement users who read complete labels.
- Customers seeking high-potency formulas at competitive prices.
- People who value GMP registration and available Certificates of Analysis.
- Adults with a defined reason for a multivitamin, magnesium or fish-oil supplement.
- Buyers who value a long return period and flexible recurring delivery.
Who may want to look elsewhere?
- People seeking low-dose, minimalist supplements.
- Customers already using several vitamins and minerals.
- Anyone taking prescription medication without professional review.
- People with kidney disease considering high-dose magnesium.
- Customers with fish or sesame allergies considering Super Omega-3.
- Beginners considering Life Extension Mix as their first supplement.
Final verdict: Is Life Extension worth buying?
Life Extension is worth considering for customers who want transparent, high-potency supplements at prices that are often lower than other professional-style brands.
Two-Per-Day Multivitamin is the best general starting point but should not be combined with another multi. Magnesium Caps is inexpensive but its 500 mg dose requires caution. Super Omega-3 offers a substantial EPA and DHA amount, while Life Extension Mix Powder should be reserved for experienced users who have reviewed the full nutrient and medication profile.
Start with one targeted product, calculate total daily intake across food and every supplement, and involve a qualified healthcare professional when using high-dose nutrients or prescription medication.
Pros and cons
What stands out
- Transparent labels
- Competitive prices
- Strong quality-control program
- Extensive product range
- Flexible AutoShip
- One-year return window
Trade-offs
- High-dose formulas
- Easy to duplicate nutrients
- Large magnesium capsule dose
- Complex interaction profiles
- Some strong wellness claims
- International ordering complexity
Rating details
Product details
Learn More
- Life Extension official website
- Life Extension company overview
- Life Extension quality, purity and efficacy
- Two-Per-Day Multivitamin official product page
- Magnesium Caps official product page
- Super Omega-3 official product page
- Life Extension Mix Powder official product page
- Life Extension AutoShip program
- Life Extension shipping information
- Life Extension returns and refunds
- NIH multivitamin consumer fact sheet
- NIH magnesium consumer fact sheet
- NIH omega-3 consumer fact sheet
- NIH vitamin B6 consumer fact sheet
Consult a qualified healthcare professional before using supplements or making significant changes to diet, exercise or treatment.
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