Professional-C® 20% Vitamin C Antioxidant Serum
Available for purchase through our partner Obagi.com.
The Elume standard
Used and verified in our own treatment rooms before it is sold here.
Elume Medspa is an authorized Obagi Medical partner. Obagi purchases are completed through our partner Obagi.com, so every product comes directly from the brand itself.
This product is sold through our partner Obagi.com. Checkout, shipping and returns are handled by Obagi directly on their site.
Experience Obagi's most powerful Vitamin C formula with Professional-C® 20% Vitamin C Antioxidant Serum — the maximum-strength stabilized L-Ascorbic Acid serum for those seeking the highest level of antioxidant protection, brightening, and collagen stimulation. At 20%, this serum delivers clinically significant results against photoaging, hyperpigmentation, and free radical damage — the choice of skincare professionals and experienced Vitamin C users who demand peak efficacy.
Key Benefits
- Maximum-strength 20% L-Ascorbic Acid for the highest antioxidant defense
- Dramatically brightens skin and visibly reduces dark spots and discoloration
- Provides the most potent free radical neutralization of the Professional-C® line
- Powerfully stimulates collagen production to reduce wrinkles and restore firmness
- Visibly improves skin tone, texture, and overall radiance
- Ideal for experienced Vitamin C users and those with significant photoaging
Skin Type & Concerns
Skin Type: All Skin Types (best for non-sensitive, Vitamin C–experienced skin)
Addresses: Advanced photoaging, deep hyperpigmentation, dark spots, wrinkles, loss of firmness, dullness, significant free radical damage
How to Use
After cleansing and toning, apply 3–4 drops of Professional-C® Serum 20% to the face and neck — morning and/or evening. Allow to fully absorb before applying moisturizer. Always finish with broad-spectrum SPF 50 in the morning. Begin with once-daily use if transitioning from a lower concentration; increase to twice daily as tolerated.
Key Ingredients
- L-Ascorbic Acid (20%) — The highest clinically recommended concentration of pure, stabilized Vitamin C; delivers maximum antioxidant protection, accelerated brightening, and the most robust collagen-stimulating activity of the Professional-C® serum range
Professional Tips
The 20% formula is most effective for those who have already built a tolerance to Vitamin C through consistent use of the 10% or 15% concentrations. If stinging or redness occurs, reduce frequency or step down to Professional-C® Serum 15%. Vitamin C oxidizes when exposed to light and air — keep the bottle tightly sealed and stored in a cool, dark place.
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