PROFESSIONAL-C 20%: BRIGHTENING KIT
PROFESSIONAL-C 20%: BRIGHTENING KIT
LIMITED EDITION
4.6
Rated 4.6 out of 5 stars
247 Reviews

PROFESSIONAL-C 20%: BRIGHTENING KIT

Bestselling Vitamin C Serum, sized for home and on-the-go

Sale price $180.00 Regular price $240.00
25% Off

PROFESSIONAL-C 20%: BRIGHTENING KIT

Find a Professional
Best for
Skin Discoloration - color
Skin Discoloration
Uneven Skin Tone - color
Uneven Skin Tone

Professional-C Serum Vitamin C 20% Antioxidant Defense is Obagi's bestselling vitamin C serum, formulated with L-Ascorbic Acid and Sodium Hyaluronate for a supercharged, hydrated glow that doesn't quit — at home or on the road. One full-size bottle for your everyday routine, one travel-size for wherever the day takes you

How To Use

  • Step 1: Apply 5-7 drops in the morning after cleansing and toning, before moisturizer.
  • Step 2: Follow-up with SPF before makeup application.
  • Note: Use within 3-6 months of first opening.



Storage

  • Store at controlled and consistent humidity and temperature not exceeding 25°C (77°F).
  • Keep out of direct sunlight.
  • Store in a dark, cool place after opening.
  • Keep cap on tightly when not in use.

Compare Gift & Value Sets

    Currently viewing

  • PROFESSIONAL-C 20%: BRIGHTENING KIT
    LIMITED EDITION
    4.6
    Rated 4.6 out of 5 stars
    247 Reviews
    PROFESSIONAL-C 20%: BRIGHTENING KIT
    Sale price $180.00 Regular price $240.00
    25% Off
    OBAGI® DAY TO NIGHT HYDRATION SKINCARE SET
    4.4
    Rated 4.4 out of 5 stars
    274 Reviews
    OBAGI® DAY TO NIGHT HYDRATION SKINCARE SET
    Sale price $160.00 Regular price $200.00
    20% Off
    OBAGI VITAMIN C AND RETINOL SET
    OBAGI VITAMIN C AND RETINOL SET
    4.6
    Rated 4.6 out of 5 stars
    347 Reviews
    OBAGI VITAMIN C AND RETINOL SET
    Sale price $196.00 Regular price $245.00
    20% Off
    OBAGI NU-DERM® BRIGHTER COMPLEXION SET
    Nu-Derm Clear Fx Open Cap
    LIMITED EDITION
    4.2
    Rated 4.2 out of 5 stars
    135 Reviews
    OBAGI NU-DERM® BRIGHTER COMPLEXION SET
    Sale price $284.00 Regular price $355.00
    20% Off
  • Product description
    Professional-C Serum Vitamin C 20% Antioxidant Defense is Obagi's bestselling vitamin C serum, formulated with L-Ascorbic Acid and Sodium Hyaluronate for a supercharged, hydrated glow that doesn't ...
    Experience around-the-clock hydration with the OBAGI® Day to Night Hydration Skincare Set. Daily Hydro-Drops® Facial Serum delivers lightweight, antioxidant-rich hydration with Vitamin B3, Abyssini...
    Amplify results for brighter, younger-looking skin! Defend in the AM with our Professional-C® Serums, which contain a powerful antioxidant that neutralizes free radicals helping to fortify skin, re...
    Looking to even out and brighten your complexion? Try the Obagi Nu-Derm Brighter Complexion Set featuring Obagi Nu-Derm Fx® Clear Fx, Obagi Nu-Derm Fx® Exfoderm Forte, and Obagi Nu-Derm Fx® Blend F...
  • Best for
    Skin Discoloration - color
    Skin Discoloration
    Uneven Skin Tone - color
    Uneven Skin Tone
    Dehydrated Skin - color
    Dehydrated Skin
    Fine Lines & Wrinkles - color
    Fine Lines & Wrinkles
    Aging & Sagging - color
    Aging & Sagging
    Skin Discoloration - color
    Skin Discoloration
    Skin Discoloration - color
    Skin Discoloration
    Skin Types
4.6
Rated 4.6 out of 5 stars
Based on 247 reviews
247 reviews
  • Sandra G.
    NJ, United States
    Verified Buyer
    Reviewing
    20% VITAMIN C ANTIOXIDANT SERUM
    I recommend this product
    Age 45-54
    Gender Female
    Rated 5 out of 5 stars
    August 9, 2026
    the best thing for my face

    I loved it from the very first time I used it; my dermatologist prescribed it, and I’ve been using it for almost two years—my skin has improved.

    EffectivenessRated 5.0 on a scale of 1 to 5
  • Marianne W.
    FL, United States
    Verified Buyer
    Reviewing
    20% VITAMIN C ANTIOXIDANT SERUM
    I recommend this product
    Age 55-64
    Gender Female
    Rated 5 out of 5 stars
    August 4, 2026
    High performance product

    The 20% C Serum is in my cycle of products I’ve used on and off for 10+ years. I like to change things up, the same way one does with a physical exercise program.

    EffectivenessRated 4.0 on a scale of 1 to 5
  • Carol
    Reviewing
    20% VITAMIN C ANTIOXIDANT SERUM
    I recommend this product
    Rated 5 out of 5 stars
    August 3, 2026
    5 Stars

    The Best vitamin C serum on the market!

  • Stacey
    Reviewing
    20% VITAMIN C ANTIOXIDANT SERUM
    I recommend this product
    Rated 5 out of 5 stars
    July 23, 2026
    5 Stars

    Best way to get a glow.

  • THU T. L.
    CA, United States
    Verified Buyer
    Reviewing
    20% VITAMIN C ANTIOXIDANT SERUM
    I recommend this product
    Age 35-44
    Gender Female
    Rated 5 out of 5 stars
    July 19, 2026
    good

    Good

    EffectivenessRated 5.0 on a scale of 1 to 5