Obagi
Obagi C25 Serum NEO
オバジC25セラムNEO
skincare vitamin c serum
Japan's highest concentration vitamin C serum at 25% pure ascorbic acid. Rohto's prestige Obagi line. Also contains vitamin E for enhanced efficacy. Dark spot + pore + fine line multi target formula. Premium price reflects pharmaceutical grade formulation.
Key Ingredients
FAQ
Will this sting or burn when I apply it?
Some tingling is normal with 25% ascorbic acid, especially when you first start using it. The high concentration means it's more active than lower percentage vitamin C serums, so mild warmth or slight stinging for a few minutes is expected. If it burns intensely or causes redness, your skin may not be ready for this strength yet. Start with a lower concentration like 10% or 15% and work up.
Is 25% too strong for sensitive skin?
Most likely, yes. This is the highest concentration vitamin C serum in the Obagi line, formulated for experienced users with resilient skin. If you have sensitive skin or haven't used vitamin C before, start with Obagi C10 or C15 instead. You can always increase concentration later once your skin builds tolerance.
How is this different from drugstore vitamin C serums?
The concentration and formulation quality. At 25% pure ascorbic acid, this is pharmaceutical grade vitamin C at a strength most drugstore brands don't offer. It also includes vitamin E to enhance stability and efficacy. The higher price reflects both the active percentage and Rohto's prestige formulation standards under the Obagi brand.
Where to Buy in the US
Available from 1 retailer
Learn More
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