The most-loved Obagi products, all in one place — genuine, authorised UK Obagi stock, sealed and in-date, with fast tracked delivery. A free virtual consultation is available if you'd like guidance.
Obagi's Professional-C Serum 20% is one of the range's best-known vitamin C formulas, so if you're weighing up which strength suits you, our Academy guide to choosing a vitamin C serum compares form, percentage and skin type before you commit. The L-Ascorbic Acid entry is worth a look too — it explains why this form is the most studied, and how to store it so it stays fresh.
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Obagi
Obagi Professional-C Serum 20% | High-Potency Vitamin C Antioxidant Serum | 30ml
£170.00Unit price /Unavailable -
Frequently asked questions
Which Obagi best-seller should I start with?
Which Obagi best-seller should I start with?
If you buy one Obagi hero, make it the Professional-C Serum 20%, a high-potency vitamin C antioxidant serum for morning radiance and defence. Pair it with the Daily Hydro-Drops for hydration and Hydrate Luxe for overnight richness, and you have a complete morning-to-night core. The Nu-Cil lash serum sits alongside as a targeted extra.
How do I build a routine from these four best-sellers?
How do I build a routine from these four best-sellers?
Morning: cleanse, Professional-C Serum 20%, Daily Hydro-Drops, then SPF. Evening: cleanse, Daily Hydro-Drops, Hydrate Luxe, and Nu-Cil combed along the lash line. That covers antioxidant defence, hydration, overnight repair and lashes with no ingredient clashes.
Why is the Professional-C Serum 20% so popular?
Why is the Professional-C Serum 20% so popular?
It delivers L-ascorbic acid at 20%, the highest strength in Obagi's Professional-C line, for the most visible brightening and antioxidant protection the range offers. Used every morning under SPF, it targets dullness and the look of uneven tone. That potency makes it best for resilient, oilier skin rather than reactive types.
How do I use the Nu-Cil Eyelash Enhancing Serum?
How do I use the Nu-Cil Eyelash Enhancing Serum?
Apply Nu-Cil once a day along the upper lash line like a liquid liner, on clean, dry skin before any creams. Give it consistent nightly use, since visible improvement in lash fullness builds over 8-12 weeks. Stop and reassess if the eye area feels irritated.
Are these best-sellers genuine and quick to arrive?
Are these best-sellers genuine and quick to arrive?
Every best-seller here ships from Skintique as an authorised UK Obagi stockist, so your Professional-C Serum 20% and Hydrate Luxe arrive genuine and correctly stored. Place your order before 2pm for same-day dispatch, with free tracked UK delivery on orders over £50.
Not sure which Obagi product is right for you?
Book a free virtual consultation with one of our skin experts — we'll build the right Obagi routine for your skin.
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