SKU: 77485590828

L-Ergothioneine - 25 mg, 30 capsules - 3 pack

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Description

L-Ergothioneine - 25 mg, 30 capsules - 3 packErgothioneine is a powerful amino acid that helps fight the signs of aging and supports numerous aspects of health. Supports longevity by aiding in telomere length maintenence 1 Combats oxidative stress in the brain to support cognition 2 Protects the heart and is associated with reduced cardiovascular mortality 3 View Certificate of Analysis Research Supported Benefits: Supports Longevity. Research shows that ergothioneine supports longevity by

Ergothioneine is a powerful amino acid that helps fight the signs of aging and supports numerous aspects of health.

  • Supports longevity by aiding in telomere length maintenence 1
  • Combats oxidative stress in the brain to support cognition 2
  • Protects the heart and is associated with reduced cardiovascular mortality 3

View Certificate of Analysis

Research-Supported Benefits:

Supports Longevity. Research shows that ergothioneine supports longevity by protecting against accelerated telomere shortening. (1) Longer telomeres are a powerful predictor of increased lifespan and healthspan. (4)

Maintains Cellular Health. Ergothioneine has been shown to reduce levels of oxidative stress. High levels of oxidative stress may contribute to DNA damage, a decline in ATP (cellular energy) production and elevated inflammatory markers. (5)

Promotes Heart Health. By reducing oxidative stress, ergothioneine exhibits powerful cardioprotective properties. Oxidative stress is associated with accelerated aging of heart cells, studies show ergothioneine reduces cardiac-related mortality risk. (6)

Enhances Brain Health. Low levels of ergothioneine are correlated with neurodegeneration and cognitive impairment. (7) Animal studies have found that administration of ergothioneine improves markers of memory and mood. (8)

Improves Performance. Research suggests ergothioneine may improve markers associated with fitness and muscle health. One study found that administration ergothioneine to mice increased time to exhaustion during aerobic activity and enhanced protein synthesis post-exercise. (9)

References:

1. Samuel P, Tsapekos M, de Pedro N, Liu AG, Casey Lippmeier J, Chen S. Ergothioneine Mitigates Telomere Shortening under Oxidative Stress Conditions. J Diet Suppl. 2022;19(2):212-225. doi:10.1080/19390211.2020.1854919

2. Wijesinghe P, Whitmore CA, Campbell M, et al. Ergothioneine, a dietary antioxidant improves amyloid beta clearance in the neuroretina of a mouse model of Alzheimer's disease. Front Neurosci. 2023;17:1107436. Published 2023 Mar 14. doi:10.3389/fnins.2023.1107436

3. Dare A, Elrashedy AA, Channa ML, Nadar A. Cardioprotective Effects and in-silico Antioxidant Mechanism of L-Ergothioneine in Experimental Type-2 Diabetic Rats. Cardiovasc Hematol Agents Med Chem. 2022;20(2):133-147. doi:10.2174/1871525719666210809122541

4. Heidinger BJ, Blount JD, Boner W, Griffiths K, Metcalfe NB, Monaghan P. Telomere length in early life predicts lifespan. Proc Natl Acad Sci U S A. 2012;109(5):1743-1748. doi:10.1073/pnas.1113306109

5. Fu TT, Shen L. Ergothioneine as a Natural Antioxidant Against Oxidative Stress-Related Diseases. Front Pharmacol. 2022;13:850813. Published 2022 Mar 18. doi:10.3389/fphar.2022.850813

6. Smith E, Ottosson F, Hellstrand S, et al. Ergothioneine is associated with reduced mortality and decreased risk of cardiovascular disease. Heart. 2020;106(9):691-697. doi:10.1136/heartjnl-2019-315485

7. Wu LY, Kan CN, Cheah IK, et al. Low Plasma Ergothioneine Predicts Cognitive and Functional Decline in an Elderly Cohort Attending Memory Clinics. Antioxidants (Basel). 2022;11(9):1717. Published 2022 Aug 30. doi:10.3390/antiox11091717

8. Ishimoto T, Kato Y. Ergothioneine in the brain. FEBS Lett. 2022;596(10):1290-1298. doi:10.1002/1873-3468.14271

9. Fovet T, Guilhot C, Delobel P, Chopard A, Py G, Brioche T. Ergothioneine Improves Aerobic Performance Without Any Negative Effect on Early Muscle Recovery Signaling in Response to Acute Exercise. Front Physiol. 2022;13:834597. Published 2022 Feb 9. doi:10.3389/fphys.2022.834597

  • Ergothioneine is an amino acid that your body is unable to make on its own but can be obtained from eating foods such as certain types of mushrooms and organ meat.
  • As you age, levels of ergothioneine decline in the body, potentially contributing to a decline in cellular, brain, heart, and muscle health.
  • Ergothioneine is absorbed in the small intestine and transported throughout the body via a specific transporter known as the Organic Cation Transporter 1 (OCTN1). This transporter is highly selective for ergothioneine, allowing it to enter cells efficiently.
  • Once inside the cells, ergothioneine primarily exerts its effects as a potent antioxidant. It works by donating electrons to neutralize harmful free radicals and reactive oxygen species (ROS) that are generated during normal cellular metabolism and in response to environmental stressors.
  • Administration of ergothioneine in animal studies has been shown to reduce oxidative stress, mediate inflammatory markers, and promote cellular, brain, and heart health.
Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 30
Amount Per Serving %DV
L-Ergothioneine 25 mg
† Daily Value (DV) not established
REV.08.25

  • OTHER INGREDIENTS: Hypromellose (capsule), rice flour.
  • SUGGESTED DAILY USE: Take (1) capsule per day, with or without food.
  • CAUTION: For use by healthy adults only. Please consult your physician before use if you are pregnant or nursing, under the age of 18, or are undergoing treatment for a medical condition. Do not exceed the suggested use. KEEP OUT OF REACH OF CHILDREN. Store in a cool and dry place after opening.
  • Unique Formulation. Compared to the majority of products on the market with lower doses, ProHealth's Ergothioneine contains a clinically effective dose of 25 mg of ergothioneine per serving.
  • Quality Manufacturing Practices. All of our products are manufactured in an FDA-registered, GMP-certified facility.
  • Third-Party Tested in the USA. Every batch is third-party tested in US laboratories to ensure the highest quality, purity and potency. Certificates of Analysis are available.
Shipping Notes
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  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 77485590828

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4.5 ★★★★★
Based on 13 reviews
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P
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princeton von d
Carnegie, US
★★★★★ 3
Chicken Flavor Good, But 🔄 Rotation-Resistant✖; Best for Simpler Chewers
Size: X-Small, Color: Ring Bone, Size: X-Small, Color: Ring Bone
🐾 Hi, I’m PVD; plush sophisticate, chew critic, and active curator of rotational toy relevance. This ring bone and I never fully bonded. I sampled it maybe five times in my entire puppyhood before quietly returning it to the bin (with a single judgmental glance). Still, it does have value for the right pup. ⭐ Why I originally wanted to love it: ✔️ XS size works well for very young puppies ✔️ Chicken flavor lasts impressively long ✔️ Freezing offers temporary gum relief ✔️ Durable and safe; no odd odors or shredding 🌀 Why it’s now a respectful 3-star chew in my rotation: ✘ Never became a go-to toy (5 uses max in my life) ✘ Ring shape felt awkward, not natural or chic; hard to grip and maneuver ✘ Texture too tame vs. nubs or detailed chew surfaces ✘ When I was smaller, I much preferred the Nylabone Baby Blue Bone Chew Toy with nubs (my personal classic), and have since matured into nightly Nylabone “Nubz” edible bones This Ring Bone is Best For: • Very young puppies with minimal chew preferences • Dogs who like simple textures and circular shapes • Those just starting enrichment chew play • Freezer treat rotations (briefly) 🚫 Not ideal for: picky pups, advanced chewers, or dogs who analyze toy ergonomics (like myself). 📝 Final Re-Barks: A strong, well-made chew, but lacked the intrigue to make my permanent rotation. Works for basic chew enjoyment; not for pups with elevated taste or toy ambition. — PVD (Chew Strategist, Textural Analyst & Aspire-to-Vine Reviewer 🐶💼)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
K
Verified Purchase
Kaitlynne Lynch
Birmingham, US
★★★★★ 5
Puppy loves it!
Size: X-Large, Color: Teething Bone, Size: X-Large, Color: Teething Bone
My small puppy loves this bone! I originally purchased this for a larger dog, but my small 10 pound puppy loves it more. It’s good quality and a softer material for puppies!
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Reviewed in the United States on May 10, 2026
J
Verified Purchase
Jesse Arner
Bozeman, US
★★★★★ 4
A hit, but could be stronger
Size: Medium, Color: Ring Bone, Size: Medium, Color: Ring Bone
Gave this to my 11 week old pittie, and she did significant damage within 15 mins. She left a pile of chewed bits on the couch but thankfully didn't eat them. Definitely don't leave unsupervised. That said, she LOVED it and it seemed to help her teething gums so, I'm still giving it a 4/5 Puppy pics for tax
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Reviewed in the United States on June 3, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
FOR SHORT TIME USE
Size: X-Small, Color: Ring Bone
My puppies love this. After a couple of weeks, it is worn so I throw it out and buy another since it's reasonably priced. I don't want them to actually ingest a chunk of this.
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Reviewed in the United States on April 11, 2026
B
Verified Purchase
Brandy B
Lake Worth, US
★★★★★ 5
Great for our puppy
Size: X-Small, Color: Ring Bone
This chew toy has quickly become our puppy’s absolute favorite. She’s just starting to teethe, and keeping her busy and comfortable has definitely been a challenge, but this ring has been a lifesaver. She was interested in it right away and keeps coming back to it on her own, which is a huge win. The chicken flavor seems to really hold her attention, and it gives her something appropriate to chew instead of everything else. It’s the perfect size for a very young puppy and easy for her to hold and gnaw on without getting frustrated. It keeps her occupied, helps soothe her gums, and gives us a much-needed break during those teething moments. If you have a puppy just starting the teething phase and need something safe, durable, and engaging, this is an excellent choice and one I’d happily buy again.
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Reviewed in the United States on February 6, 2026

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