Obagi
Obagi Professional-C Serum
4.7· Best for: Dull, sun-exposed skin and early signs of photoaging.
A stabilized 15% L-ascorbic acid serum formulated to neutralize free radicals, brighten uneven tone and visibly improve the appearance of fine lines.
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Pros
- +Clinically meaningful 15% vitamin C
- +Lightweight, fast-absorbing
- +Improves tone in 4 weeks
Cons
- —Can oxidize if stored improperly
- —May tingle on sensitive skin
Key features
- 15% L-ascorbic acid
- Stabilized formulation
- Vegan, fragrance-free
- Suits most skin types
Scientific Evidence
Topical L-ascorbic acid at 10–20% has been shown in peer-reviewed studies to stimulate collagen synthesis and reduce photodamage when applied daily under SPF.
Frequently asked
Morning or night?+
Morning, under sunscreen, for maximum antioxidant protection.
Can I layer with retinol?+
Yes — vitamin C in AM, retinol in PM is the gold-standard routine.
Ready to try Obagi?
Pharmaceutical-grade L-ascorbic acid for brightening and defense.
