STAY-C® 50

The all-round vitamin ingredient for beautiful glowing skin

Helps protect from photo damage for beautiful and healthy-looking skin

The vitamin C derivative STAY-C® 50 is a powerful in-vivo anti-oxidant and free radical scavenger. Our studies have proven its efficacy for a better-looking skin tone. It reduces the appearance of skin blemishes and acne not only experienced by teenagers but also by adults. Stimulating the production of collagen and increasing skin firmness STAY-C® 50 is contributing to the efficacy of anti-ageing products. Data also demonstrate deodorant activity, hair color protection and activity against bacteria involved in caries and gingivitis.

Product Features

  • INCI: Sodium Ascorbyl Phosphate 
  • STAY-C® 50 is a vitamin C derivative with superior stability in formulations compared to straight ascorbic acid. The easily water-soluble monophosphate ester of ascorbic acid is bio-convertes into Vitamin C by phosphatases present in the skin. 


  • Helps protect from photo damage for beautiful and healthy-looking skin (ROS reduction; second line of defense next to PARSOL® UV filters) 
  • Improves skin firmness 
  • Decreases appearance of age spots 
  • Visibly evens the skin tone 
  • Superior improvement of appearance of acne even compared to anti acne actives

Mode of Action

Any STAY-C® 50 which crosses the stratum corneum is metabolized to ascorbic acid, which further penetrates into deeper skin layer.

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