Highly concentrated Vitamin C antioxidant serum best suited for normal to oily skin.

Professional-C Serum 20% is our highest concentrated serum, packed with antioxidants to help minimize the appearance of fine lines and wrinkles while leaving skin feeling silky soft. This high-performance serum is formulated with 20% L-ascorbic acid (Vitamin C), and is best suited for normal to oily skin.



  • 20% L-ascorbic acid (Vitamin C) encourages skin to rebound from previous visible damage.
  • Improve overall complexion by reducing the appearance of fine lines and wrinkles.
  • Formulates to immediately absorb and remain in the skin.
  • Recommended for normal skin, and oily skin.
  • Skin concerns: Fine lines and wrinkles, skin discoloration.



  • Apply 5 to 7 drops of Obagi Professional-C Serum to the face, neck and chest using fingertips.
  • Apply to cleansed skin in the morning before sunscreen or makeup application.


Key Ingredients

  • L-Ascorbic Acid 20%

Known as the purest form of Vitamin C, L-Ascorbic Acid helps neutralize free radicals, minimize the look of fine lines and wrinkles, and brighten skin tone.

  • Daily Use of Vitamin C

Proactively fortifies the skin defenses against environmental assaults.

Encourages skin to rebound from previous, visible damage for an improved appearance of fine lines, wrinkles and uneven skin tone.

Aids in restoring skin's antioxidant strength to help skin appear younger for longer.


All Ingredients

Propylene glycol, water (aqua), L-ascorbic acid, alcohol, ascorbyl glucoside, ethoxydiglycol, phenoxyethanol, sorbitol, sodium hyaluronate, zinc chloride, calcium hydroxide, fragrance.