Professional-C Serum 20% — Reddit Reviews
by Obagi
Updated August 6, 2026
High 20% vitamin C concentration for brightening effects
What the community says
This 20% vitamin C serum with added hydroquinone is noted for quickly fading hyperpigmentation but isn’t designed for continuous use due to the hydroquinone concentration.
What this means for you
What people love
- High 20% vitamin C concentration for brightening effects
- Includes 4% hydroquinone for rapid spot fading
- Versions available for both dry and oily skin types
Watch out for
- Cannot be used continuously because of hydroquinone risk
- May not suit sensitive skin due to potential irritation
- Limited discussion on long-term tolerance or layering recommendations
Product details
Key Ingredients
Skin type data limited
