ANTIOXIDANT SCIENCE
Antioxidant science.Not marketing.
SkinCeuticals began with a question Dr. Sheldon Pinnell set out to answer at Duke University: what actually makes a topical vitamin C formula work? His answer — concentration, pH and co-factor synergy — became the reference other formulas are still measured against.
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THE CONSIDERED EDIT
Meet your new essentials.
SkinCeuticals
$185.00$122.10 USD
SkinCeuticals
$150.00$111.00 USD
SkinCeuticals
$490.00$333.20 USD
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$270.00$194.40 USD
SkinCeuticals
$300.00$222.00 USD
SkinCeuticals
$333.00$243.00 USD
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$300.00$213.00 USD
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$395.00$280.40 USD
SkinCeuticals
$194.00$143.50 USD
INTEGRATED SKINCARE
What happens in the clinicshould continue at home.
A professional treatment and the regimen that follows it are one protocol, not two separate purchases. That is the idea SkinCeuticals was built on: formulas designed to be used before, during and after in-office work, at the concentrations your dermatologist or esthetician is already working with.
It is also why the range is organised by concern rather than by trend — an antioxidant layer for daytime defence, a corrective layer for texture and pigment, and daily UV protection that keeps both of them intact.
BEFORE YOU START
How to actually use it
Do I need more than one antioxidant serum?
No. Pick the one matched to your skin type and use it every morning. Layering two vitamin C serums does not add protection — it mainly adds irritation, and doubles what you spend.
In what order do I apply it?
Thinnest to thickest. Cleanse, then the antioxidant serum on dry skin, then any corrective, then moisturiser, then sunscreen. Give the serum a minute to settle before the next layer.
Morning or evening?
Antioxidants go in the morning — their job is to absorb the UV and pollution damage your skin meets during the day. Retinol and acid-based correctives go in the evening, when skin is not also defending itself.
Can I use vitamin C with retinol?
Yes, and they work well together — just not in the same layer. Use the antioxidant serum in the morning and the retinol at night. If your skin is reactive, start with alternate evenings before going nightly.
How should I store it?
Capped, upright, away from direct light and heat. A pale gold tint is normal over time; a deep amber or brown colour means the L-ascorbic acid has oxidised and the bottle should be replaced. Do not decant it into a travel pot.
How long before I notice a difference?
The antioxidant protection starts with the first application, but you will not see it — that is the point of it. Visible changes in tone and texture generally take eight to twelve weeks of consistent morning use.
My skin is sensitive — where do I start?
Patch test behind the ear for two days, then introduce the serum every other morning for the first week before moving to daily. If stinging persists, stop and speak to a dermatologist.
Is sunscreen still necessary if I use an antioxidant?
More so. UV exposure consumes the antioxidants sitting in your skin, so the serum buys you time rather than replacing protection. An antioxidant in the morning without sunscreen is an unfinished routine.