Selenium

INCI: Sodium Selenite, Selenomethionine (varies by formulation)
Category: Trace mineral, antioxidant nutrient
Used in: Supplements
Typical Usage Level (Oral Supplements):
40–55 mcg per day for general nutritional support
Higher doses may be used under medical guidance

What This Ingredient Does

Selenium is an essential trace mineral involved in antioxidant defense systems in the body. It is a key component of enzymes such as glutathione peroxidase, which help protect cells from oxidative stress.

In the context of skin and hair health, selenium supports cellular protection and helps regulate inflammatory processes. Adequate selenium levels contribute to maintaining normal hair growth and overall skin function, while both deficiency and excess can negatively affect hair and skin.

Selenium is often used alongside antioxidants such as vitamin E and glutathione to support overall oxidative balance.

Key Benefits

• Supports antioxidant protection against oxidative stress

• Contributes to normal hair growth and maintenance

• Supports immune system function

• Helps regulate inflammatory responses

Who It’s Best For

• Individuals with low dietary selenium intake

• People seeking antioxidant support

• Those looking to support hair and overall health

• Individuals under oxidative stress

Clinical Note by Dr. Su

M.D. Dermatologist

Selenium is important for antioxidant defense and overall health, but both deficiency and excess intake can affect hair and skin. Supplementation should be within recommended limits.

References

1. Nutrients (2021)
   Selenium and its role in human health and disease
   https://pubmed.ncbi.nlm.nih.gov/34112359/

2. PMC Review Article (2022)
   Role of micronutrients in skin and hair physiology
   https://pmc.ncbi.nlm.nih.gov/articles/PMC9570904/