Antioxidant
Ergothioneine
Antioxidant, protective, soothing
Key Benefits
- Supports antioxidant defense
- Helps protect against visible environmental stress
- Complements photodamage-focused care
- Supports a calm, resilient appearance
How It Works
Ingredient Details
INCI Name: Ergothioneine
Ingredient Type: Sulfur-containing amino-acid antioxidant
Best For
All skin types · Environmentally stressed skin · Dull-looking skin · Age-supportive routines
What It Is
What It Does
Ergothioneine FAQs
Common questions about this ingredient in skincare.
What is ergothioneine?
It is a naturally occurring sulfur-containing amino-acid derivative used in skincare for stable antioxidant and cellular-defense support.
Where does ergothioneine come from?
It is produced by certain fungi and microorganisms and is abundant in some mushrooms. Cosmetic-grade material may be produced through controlled biotechnology.
How does skin use it?
Skin cells express the OCTN1 transporter, which can take up ergothioneine and concentrate it within cells in laboratory studies.
Can it replace vitamin C?
No. They are different antioxidants with complementary properties, and a formula may use both.
Does it replace sunscreen?
No. Antioxidant support does not provide tested SPF protection. Broad-spectrum sunscreen remains essential for UV protection.
Is it suitable for sensitive skin?
It is generally positioned as a gentle antioxidant, but individual sensitivity and the complete formula determine tolerability.
Shop the ingredient
Products Featuring Ergothioneine
