• Recently, a new classification (Environmental Protection Factor) has been developed by researchers to compare the efficacy of various topical (applied onto the skin) antioxidants. The study was published in the Journal of Cosmetic Dermatology, January 2005.
  
  
• Environmental Protection Factor (EPF) is like an “SPF” for free radical protection that evaluates antioxidant action on 100-point rating scale. Some of the antioxidants in the market have been evaluated:
  

  Antioxidant Total (EPF) Score
  

  Idebenone	95
  Vitamin E (Tocopherol)	80
  Kinetin	68
  Coenzyme Q10 (Ubiquinone)	55
  Vitamin C (Ascorbic acid)	52
  Lipoic Acid	41

  
  
  

What is Idebenone?
Idebenone is one of the most potent antioxidants around, having an Environment Protection Factor (EPF) of 95 - higher than the other common antioxidants such as vitamin E, vitamin C and coenzyme Q10.

Where to Get Idebenone?
It is found as a key ingredient in PREVAGE anti-aging treatment - jointly launched by Elizabeth Arden and Allergan (maker of Botox).
Stockists: Prevage