L-Ergothioneine Powder
Other Name: L Ergothioneine, EGT, Thiasine
Source: Fermentation & Natural Mushroom Extract
Specifications: 0.5%,1%, 99% EGT
Appearance: White Powder or Brown Powder
CAS No: 497-30-3
Test Method: HPLC
MOQ: 1KG
Delivery Time: Delivery within one day from warehouse
Sample: Free sample available
Production Capacity: 2000KG/month
Certs: GMP, ISO9001, ISO22000, HACCP, KOSHER, HALAL
Content: Natural, Non-additive, Non-GMO, Treat by Heat Only
Payment: Multiple terms acceptable like T/T, Alipay, Paypal
Company Advantage: Kintai mainly focuses on the production of high content plant extracts and pharmaceutical intermediates all the year round.
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
L-Ergothioneine Powder Manufacturers and Suppliers
L-Ergothioneine is a rare, naturally occurring sulfur-containing antioxidant that the human body cannot synthesize and must obtain through diet. It is primarily found in fungi (such as oyster mushrooms and king oyster mushrooms), certain cyanobacteria, and in animals (accumulating through the food chain). Its core functions include antioxidation, anti-inflammation, and maintaining vital physiological functions for overall health. Healthkintai® is manufacturers and supplier of L-ergothioneine Powder with a purity of 99% and a natural extract content of 0.5% and 1%,,contact us at info@kintaibio.com.
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Product Name |
Source |
Specification |
Appearance |
|
L-ergothioneine |
Fermentation |
L-ergothioneine99% |
White Crystal Powder |
|
Natural Mushroom Extract |
L-ergothioneine0.5% |
Brown powder |
|
|
L-ergothioneine0.1% |
Brown powder |
Other specifications can be custmized.Contact us now>>>

L-Ergothioneine Powder Production Process
Our factory employs an advanced bio-fermentation method for the large-scale production of L-Ergothioneine Powder. The core of this process lies in using genetic engineering to target and modify *E. coli* or yeast strains, creating high-yield specific strains. Through a precisely controlled, high-density deep fermentation process, we achieve the large-scale biosynthesis of ergothioneine. After fermentation, advanced purification and extraction technologies, including cell disruption, membrane separation, continuous chromatography, and multiple purification processes, are integrated to remove impurities step by step. With this rigorous and mature process, we can consistently obtain L-ergothioneine products with a purity exceeding 99%, meeting the stringent requirements of the pharmaceutical, cosmetic, and high-end food industries.

Regulatory Status of Ergothioneine Powder
- FDA-GRSA:The notice informs us this use of ergothioneine is GRAS through scientific procedures.
- EFSA:Following a request from the European Commission, the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) was asked to deliver a scientific opinion on synthetic l-ergothioneine, marketed as Ergoneine®, as a novel food (NF) submitted pursuant to Regulation (EC) No 258/97 of the European Parliament and of the Council.
What does L-ergothioneine do?
The core mechanism of action of L-ergothione begins with its precise transmembrane transport mediated by its specific transporter OCTN1 (also known as ETT). This transporter is highly expressed in cells susceptible to oxidative stress, such as human skin, liver, kidneys, and brain, enabling ergothione to be actively taken up and accumulated at key targets such as mitochondria and the cell nucleus. Once inside the cell, its unique thione structure allows it to efficiently and directly scavenge various reactive oxygen species and reactive nitrogen free radicals, protecting DNA, proteins, and lipids from oxidative damage.
Furthermore, L-Ergothioneine Powder can also participate in regulating the cell's endogenous antioxidant defense system. Studies have shown that it can activate the Nrf2-ARE signaling pathway, upregulate the expression of antioxidant enzymes, and affect apoptosis, inflammatory responses, and autophagy homeostasis by regulating pathways such as PI3K/AKT and FoxO3. Therefore, it exerts multiple biological functions at the cellular and molecular levels, including anti-inflammatory, anti-aging, and neuroprotective effects.
L-Ergothioneine Benefits
L-Ergothioneine for Skincare
L-Ergothioneine Powder is a highly effective, multifunctional active ingredient in skincare. Its core function stems from its ability to be actively taken up by skin cells via the specific transporter OCTN1 and precisely accumulated at the key target site of mitochondria. Ergothioneine can enhance the endogenous antioxidant defense capacity of skin cells by activating the Nrf2 signaling pathway, resisting apoptosis and DNA damage caused by oxidative stress. It can effectively inhibit the formation of advanced glycation end products (AGEs), comprehensively delaying skin aging through its anti-glycation effect.
L-ergothioneine for sleep
The sleep-improving effects of ergothioneine have been confirmed by numerous clinical studies in recent years. On the one hand, it regulates neurotransmitter metabolism by inhibiting the activity of histamine N-methyltransferase and aldehyde dehydrogenase; on the other hand, as a potent antioxidant, it can reduce stress-induced oxidative damage and inflammatory responses. Animal studies have further confirmed that ergothioneine can prevent depressive-like behaviors and REM sleep disorders caused by social defeat stress. It can significantly improve subjective sleep quality, and a dose-dependent improvement in sleep priming has been observed in older adults.
L-ergothioneine for fertility
The protective effects of ergothioneine on reproductive health have been confirmed by numerous studies. In male reproduction, ergothioneine supplementation can increase sperm density and motility. In sperm cryopreservation, adding ergothioneine can increase sperm motility by 15-20%, increase glutathione levels, and inhibit lipid peroxidation. In female reproduction, ergothioneine can reduce ovarian damage and improve ovulation and embryo implantation. Importantly, reproductive toxicity assessments have confirmed that ergothioneine has no adverse effects on mating, conception, embryo implantation, or offspring development in rats, demonstrating good reproductive safety.
L-ergothioneine Uses
L-Ergothioneine Supplements
The application of ergothioneine in dietary supplements is rapidly expanding. Mainstream brands on the market use high-purity (over 99%) ergothioneine alone or in scientifically formulated combinations, such as synergistic liver protection with milk thistle and skin whitening with white tomato. Through the exclusive transporter protein OCTN1, it achieves efficient absorption and long-lasting retention, meeting the multi-dimensional health management needs of urban dwellers, including anti-oxidation, liver protection, and anti-aging.

Ergothioneine in Cosmetics field
Ergothioneine has multiple functions in the cosmetics field. It delays photoaging and skin sagging, inhibits melanin synthesis, and has anti-inflammatory properties, soothing sensitive skin and strengthening the skin barrier.In formulation, ergothioneine has good water solubility, excellent photothermal stability, and is not easily oxidized or decomposed. It is effective at concentrations of 0.01%-0.5%, making it compatible with various product categories such as anti-aging serums, whitening products, sunscreens and after-sun repair products, and sensitive skin care. Studies have shown that it can produce a synergistic effect when used in combination with vitamin C, inhibiting vitamin C degradation and enhancing antioxidant effects.

L-Ergothioneine Side Effects
L-Ergothioneine has a high safety profile, with no definite side effects currently identified. The European Food Safety Authority's assessment report indicates that, based on comprehensive toxicological data, the No Observed Adverse Effect Level (NOAEL) for synthetic L-ergothioneine is 800 mg/kg body weight/day, suitable for all populations including infants, pregnant women, and breastfeeding women. The corresponding MOE values are all above 236, considered sufficiently safe. Recently published human clinical studies have also confirmed that subjects supplementing with 60 mg of ergothioneine daily for 30 consecutive days experienced no adverse events or observed side effects throughout the study period, confirming its good safety profile. The US FDA has repeatedly applied for GRAS (Generally Recognized As Safe) certification for ergothioneine, confirming its safety as a food additive and dietary supplement.

Where to buy the best L-ergothioneine Powder?
- Product Quality
We utilize advanced genetically engineered strains and deep fermentation processes, combined with purification technologies such as continuous chromatography, to ensure product purity consistently above 99%.
- International Certifications
Our products hold ISO 9001 and HACCP management system certifications.Multiple certifications safeguard the quality of your product formulas.
- OEM/ODM Services
We provide full-process customized services from formulation development and dosage form design to packaging implementation. We can develop various dosage forms such as oral liquids, soft capsules, and lyophilized powders according to customer needs.To wholesale L-ergothioneine Powder,contact us at info@kintaibio.com.

FAQ
Is ergothioneine anti-inflammatory?
Yes, ergothioneine has significant anti-inflammatory effects, which have been confirmed by numerous studies. Research indicates that ergothioneine can effectively inhibit various key inflammatory cytokines, including interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and cyclooxygenase-2 (COX-2). Its mechanism of action mainly involves inhibiting core inflammatory signaling pathways such as NF-κB and JAK-STAT3.
What's your MOQ for L-ergothioneine?
Our MOQ is flexible, and we can provide samples. Please contact us at info@kintaibio.com.
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