In the crowded landscape of antioxidants, most ingredients work through a process of random collision—they neutralize free radicals only when they happen to bump into them. However, Cosmetic Grade L-Ergothioneine (EGT) is different. Often called the “Intelligent Antioxidant,” EGT is a rare sulfur-containing amino acid that the human body has evolved to prioritize. In fact, our skin cells possess a dedicated transporter protein, known as OCTN1, specifically designed to pull Ergothioneine into the mitochondria and the nucleus. This unique biological “VIP pass” makes EGT one of the most effective, stable, and targeted anti-aging molecules in modern cosmeceuticals.
| Item | Specification |
| Product Name | L-Ergothioneine (EGT) |
| Chemical Name | (S)-α-Carboxy-2,3-dihydro-N,N,N-trimethyl-2-thioxo-1H-imidazole-4-ethanaminium inner salt |
| CAS No. | 497-30-3 |
| Appearance | White to off-white crystalline powder |
| Assay (HPLC) | ≥ 99.0% |
| Specific Optical Rotation | $[\alpha]_D^{20} = +122.0° \text{ to } +130.0°$ |
| Loss on Drying | ≤ 1.0% |
| Residue on Ignition | ≤ 0.2% |
| Heavy Metals | ≤ 10 ppm |
| Arsenic (As) | ≤ 2 ppm |
| Total Plate Count | < 100 cfu/g |
| Solubility | Freely soluble in water |
| Storage | Store in a cool, dry place; protect from light and moisture |
| Shelf Life | 24 months when properly stored |
| Main Function | Mitochondrial Protection, DNA Shield, Anti-aging, Skin Brightening |
The presence of the OCTN1 transporter is the ultimate proof of EGT’s importance. While Vitamin C and E circulate in the skin, EGT is actively hunted by cells. Once inside, it migrates to the areas of highest oxidative stress: the mitochondria (the cell’s power plant) and the DNA.
Unlike traditional antioxidants that are quickly “spent” after neutralizing a single free radical, EGT is exceptionally stable. It does not easily auto-oxidize, meaning it remains active in the skin for longer periods, providing a continuous shield against environmental aggression.
1. Mitochondrial Protection and Cellular Energy
Mitochondria are the primary source of reactive oxygen species (ROS). By positioning itself directly within the mitochondria, EGT neutralizes ROS at the source. This prevents “mitochondrial fatigue,” ensuring that skin cells have the energy (ATP) required for collagen synthesis and rapid repair.
2. DNA Shielding and Photo-Aging Prevention
EGT is one of the few antioxidants capable of protecting the cell nucleus. It filters UV radiation and neutralizes the specific free radicals triggered by sun exposure that lead to DNA mutations. This makes it an essential “SPF booster,” helping to prevent the long-term formation of deep wrinkles and solar lentigines.
3. Anti-Inflammatory and Soothing Properties
By inhibiting the expression of inflammatory cytokines and enzymes like MMP-1 (which breaks down collagen), EGT calms the skin. It is particularly effective for “urban skin” exposed to heavy pollution, reducing the redness and sensitivity associated with environmental stress.
4. Synergistic Brightening and Tone Correction
EGT inhibits tyrosinase activity, but more importantly, it prevents the oxidative triggers that lead to uneven pigment distribution. When paired with ingredients like Vitamin C or Glabridin, it helps achieve a more uniform, luminous complexion.
Our Cosmetic Grade L-Ergothioneine is a high-purity crystalline powder (≥ 99.0%) produced via advanced fermentation or synthesis. Its exceptional water solubility and stability make it an ideal star active for:
L-Ergothioneine represents a bridge between nutritional science and high-performance dermatology. By utilizing the skin’s own transport systems, it provides a level of targeted protection that traditional vitamins simply cannot match. For brands seeking to offer the pinnacle of cellular defense, EGT is the indispensable “intelligent” choice.
Huatai Bio provides a comprehensive portfolio of high-efficacy cosmetic active ingredients, empowering global brands to create next-generation skincare formulations for high-end skincare formulation needs.
Comprehensive Solutions & Innovation: Our categories cover the full spectrum of market requirements: Anti-aging & Firming, Oil-Control & Anti-acne, Anti-inflammatory & Soothing,Antioxidant Defense, Brightening,and Hydration & Barrier Repair.We offer both established classics and cutting-edge actives.
Driven by a passion for scientific excellence, our state-of-the-art R&D laboratory is dedicated to exploring the frontier of bio-active molecules. Beyond supplying ingredients, we offer end-to-end formulation consultancy and customized solution development. Our team of expert chemists works closely with your brand to overcome complex stability issues and sensory challenges, ensuring your final product stands out in a competitive global market.
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