Obagi Professional-C® Serum 20%

(5 customer reviews)

68.86 inc. VAT

Obagi Professional-C® Serum 20% provides ultimate antioxidant protection and instant radiance. Suitable for normal to oily skin.

Obagi Professional-C® Serum 20% is the highest concentrated Vitamin C serum in the Obagi Professional-C® range.

A strong and powerful formula, Obagi Professional-C® Serum 20% helps reduce the appearance of fine lines and wrinkles, evens skin tone and retains skin moisture, giving you a brighter, healthy-looking complexion.

With 20% L-ascorbic acid (the most potent form of Vitamin C) to help calm and brighten skin, as well as retain moisture, this facial serum gives you an instant glow without leaving skin feeling greasy. Best suited to normal to oily skin types.

Did you know? Free radicals break down your skin’s collagen and elastin which results in premature skin ageing – the cause of fine lines, wrinkles and dark spots. Vitamin C stimulates new collagen production, reduces fine lines and wrinkles and protects your skin from harmful free radicals and UV exposure.

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Suitable for oily skin types
Easily absorbed into the skin
Brightens and hydrates skin
Calms skin and reduces inflammation
Minimises the appearance of fine lines and wrinkles

How to use

Apply each morning to thoroughly cleansed and toned skin. Use 5-7 drops to the fingertips and massage into the entire face and neck, absorbs quickly into the skin. Follow with your usual moisturiser and SPF sun protection.


5 reviews for Obagi Professional-C® Serum 20%

  1. Michael Vanhorenbeeck

    A little pot of gold… I use this daily and really like the fact it brightens my skin instantly.

  2. Vaida

    The best serum ever. My skin condition improved significantly.
    Cannot imagine my morning skin routine without this serum.

  3. Jamie L Rockers

    Absolutely love this serum – my skin felt brighter and healthier after a couple of weeks of use!

  4. DM

    It took a little bit to get used to this serum, but I see great results from it. My skin is a lot firmer and glowing. It’s great for finer lines, and I could see an improvement after a month of using it.

  5. SH

    This is hands down my favorite vitamin C. After trying numerous others, starting with 15%, and then working to 20% I’ve finally landed on this as a keeper. Great price point as the bottle lasts forever.

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Understanding the Power of Skincare

What is L-ascorbic Acid?

L-ascorbic Acid is the most potent form of Vitamin C.

When should I use Vitamin C in my skin care routine?

You'll see the most benefits from using Vitamin C in the morning to protect your skin from UV radiation throughout the day.

How can I reduce fine lines and wrinkles?

Vitamin C helps to stimulate collagen production in your skin, which will reduce the sign of ageing, including fine lines and wrinkles.

How can I achieve an instant glow?

Vitamin C helps to calm and brighten your skin whilst retaining moisture, giving you an immediate glow.

Can I use Vitamin C with oily skin?

Obagi-C Serum 20% is suitable for oily skin types.

Ingredient Spotlight

Beautiful Skincare backed by Science

Vitamin C

The most potent form of Vitamin C is L-ascorbic acid, which helps to brighten and even your skin tone, providing an instant glow. L-ascorbic acid also reduces the signs of ageing and brightens skin.

L-Ascorbic Acid

L-ascorbic acid is the most potent form of Vitamin C available. 20% L-ascorbic acid is best suited to those with oily skin types.

Professional-C® Portfolio

Vitamin C is one of the most popular ingredients in skin care thanks to its multitude of benefits.

Vitamin C in skin care promotes collagen production and diminishes the appearance of fine lines and wrinkles. Vitamin C is also an antioxidant, meaning it protects and defends your skin against the damage caused by free radicals and environmental factors including UV exposure. Vitamin C also boosts the effects of your SPF sun protection.

The Obagi Professional-C® Portfolio uses L-ascorbic Acid, the scientific name for pure Vitamin C, available in strengths ranging from 10% – 30% to suit various skin types.

Did you know? L-ascorbic Acid – the active form of Vitamin C – helps to calm and brighten skin whilst retaining moisture, giving you an instant glow.