Life Extension Mega L-Ergothioneine is a high potency, 25mg, antioxidant supplement formulated to promote healthy ageing, support normal cellular function, skin, heart, and cognitive health. Each vegetarian, and gluten-free capsule delivers 25 mg of L-Ergothioneine in the form of ErgoActive®, a clinically studied, award-winning, and bioavailable version of this rare amino acid whose levels decline with age.
L-Ergothioneine, often called the 'longevity nutrient', is naturally found in mushrooms and certain foods but is not produced by the body. Levels decline with age, making supplementation important for maintaining optimal health.1
Life Extension Mega L-Ergothioneine also provides Vitamin C, a well-known antioxidant that works synergistically with L-Ergothioneine to protect cells from oxidative stress, support immune function, and promote overall cellular health.
Mega L-Ergothioneine Benefits:
- High-potency antioxidant support with high strength of 25 mg L-Ergothioneine per capsule
- With added Vitamin C, which contributes to the protection of cells from oxidative stress
- Gluten-free, vegetarian, and non-GMO
- Manufactured in the USA in a GMP-compliant facility
- Tested for heavy metals, contaminants, and potency
Directions: As a food supplement, take one capsule of Mega L-Ergothioneine daily, or as recommended by a healthcare professional.
Our in-house pharmacist, Shabir Daya has written an article about L-Ergothioneine benefits:
If pregnant, or breastfeeding, or if you are taking medication, or on medical care, consult your physician prior to use. Food supplements should not be used as a substitute for a varied diet. Store in a cool, dry place away from direct sunlight. Keep out of reach of young children. Do not exceed the daily dose.
Serving Size: 1 (one) vegetarian capsule
| Amount per Serving | % DV* | |
| Vitamin C (from ascorbyl palmitate) | 5mg | 6% |
| ErgoActive® (L-Ergothioneine) | 25mg | ** |
Other ingredients: Maltodextrin, Vegetable Cellulose (Capsule), Rice Bran, Silica, Microcrystalline Cellulose
*Daily Value **Daily Value not established
ErgoActive® is a registered mark of Blue California.
What is in Mega L-Ergothioneine?
Mega L-Ergothioneine contains 25 mg of ErgoActive® L-Ergothioneine, a high-potency amino acid supplement that contributes to normal cellular function and overall wellbeing.
What’s the difference between Essential Youth L-Ergothioneine and Mega L-Ergothioneine?
Both supplements contain L-Ergothioneine, but Mega L-Ergothioneine delivers a higher 25 mg dose, ideal for adults seeking enhanced support for normal cellular function. Essential Youth L-Ergothioneine contains a lower dose suitable for general wellness and daily antioxidant support.
What is L-Ergothioneine and what does it do?
L-Ergothioneine is a naturally occurring amino acid found in the highest concentrations in mushrooms. The body does not produce it naturally. Often called a “longevity nutrient,” L-Ergothioneine supports normal cellular protection thanks to its antioxidant and cell-protecting properties. It may contribute to maintaining normal brain function, skin function, and cardiovascular function.
How does Mega L-Ergothioneine compare to other antioxidants?
Mega L-Ergothioneine has impressive antioxidant properties at a cellular level.
Who is Mega L-Ergothioneine intended for?
Mega L-Ergothioneine is suitable for adults who want to support healthy ageing and maintain normal cellular function ny combating oxidative stress.
When is the best time to take Mega L-Ergothioneine? Should it be taken with food or on an empty stomach?
Mega L-Ergothioneine can be taken any time of the day, with or without food, according to your preference.
Has Mega L-Ergothioneine been tested for heavy metals, contaminants, and potency?
All Life Extension raw materials and finished products undergo stringent quality testing for heavy metals, microbes, disintegration, potency, and ingredient accuracy. Products are only released once they meet Life Extension’s high-quality standards.
Are there any major allergens in Mega L-Ergothioneine?
Mega L-Ergothioneine is free from the 9 major allergens: milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, sesame, and soya.
Any side effects in taking Mega L-Ergothioneine?
Clinical studies show no side effects when taking Mega L-Ergothioneine.
Where is Mega L-Ergothioneine manufactured?
Mega L-Ergothioneine is manufactured in the USA in a GMP-compliant facility using globally sourced, high-quality ingredients.
Is Mega L-Ergothioneine vegetarian?
Yes, Mega L-Ergothioneine is suitable for vegetarians and contains no animal-derived ingredients.
Is Mega L-Ergothioneine gluten-free?
Yes, Mega L-Ergothioneine is gluten-free.
Is Mega L-Ergothioneine non-GMO?
Mega L-Ergothioneine and all its ingredients are verified non-GMO by Life Extension.
Can children take Mega L-Ergothioneine?
This supplement is designed for adults aged 18 and over. Always consult a paediatrician before giving supplements to children.
Food supplements should not be used as a substitute for a varied diet. Store in a cool, dry place away from direct sunlight. Keep out of reach of young children. Do not exceed the daily dose. If pregnant, or breastfeeding, or if you are taking medication, or on medical care, consult your physician prior to use. While we work to ensure that product information on our website is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our website. All information about the products on our website is provided for information purposes only. We recommend that you do not solely rely on the information presented on our website. Please always read the labels, warnings, and directions provided with the product before using or consuming a product. In the event of any safety concerns or for any other information about a product please carefully read any instructions provided on the label or packaging and contact the manufacturer. Content on this site is not intended to substitute for advice given by medical practitioner, pharmacist, or other licensed health-care professional. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements about products are not intended to be used to diagnose, treat, cure, or prevent any disease or health condition. The customer reviews are only moderated for offensive content – they should not be regarded as medical or health advice; no reliance should therefore be placed on them; and they are not endorsed by Victoria Health. If you have any health problems or questions regarding the suitability of any product please contact a health professional. Products are not medicinal unless otherwise stated. Victoria Health accepts no liability for inaccuracies or misstatements about products by manufacturers or other third parties. This does not affect your statutory rights.
