Dr. Dennis Gross Vitamin C Lactic 15% Vitamin C Firm & Bright Serum
15% L-ascorbic acid and lactic acid serum for radiance and firmness.
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Dr. Dennis Gross Vitamin C Lactic 15% Vitamin C Firm & Bright Serum blends L-ascorbic acid with lactic acid to enhance radiance and firmness. It gently exfoliates while antioxidants support the skin barrier and the look of dark spots.
Dr. Dennis Gross Vitamin C Lactic 15% Vitamin C Firm & Bright Serum: Key Benefits
- 15% L-ascorbic acid
- Lactic acid gently exfoliates
- Supports firmness and radiance
- Targets sun damage and dark spots
- Strengthens the moisture barrier
What This Vitamin C and Lactic Acid Serum Does
This serum pairs two well-known ingredients. L-ascorbic acid, the most studied form of vitamin C, provides antioxidant protection and brightening. Lactic acid is a mild alpha hydroxy acid that loosens dead skin cells, so the vitamin C can work on a fresher surface.
The combination targets sun damage, fine lines and dullness while supporting a smooth, even complexion.
What Is Inside
The formula contains 15% L-ascorbic acid with lactic acid and a range of antioxidants. The brand states it helps strengthen the skin moisture barrier. Check the pack for the full ingredient list.
How to Use It
Apply a few drops to clean, dry skin in the morning or evening and pat in. Follow with moisturizer, and use sunscreen every morning. Begin every other day if your skin is sensitive. Avoid combining with other strong acids on the same night.
Who Should Use It
It suits dull, tired skin with sun damage and uneven tone. Beginners may prefer a lower concentration, because 15% L-ascorbic acid with an AHA is a strong combination.
Understanding L-Ascorbic Acid and Lactic Acid
L-ascorbic acid is the pure form of vitamin C and is often considered the gold standard, but it works best at a low pH, which can feel tingly. Lactic acid is one of the mildest AHAs and also attracts water, so it is often chosen for dry or sensitive skin that still needs exfoliation. Together they brighten and smooth.
What to Expect and When
Brightness and smoothness can show within a couple of weeks, while dark spots and fine lines respond over two to three months of regular use with sunscreen.
Routine and Safety Tips
Introduce slowly, one active at a time. Wear sunscreen daily, as both vitamin C and AHAs affect how skin deals with the sun. If you feel burning or see redness, stop and let the skin recover.
Questions and Answers
What strength is the vitamin C?
15% L-ascorbic acid.
What does lactic acid do?
It gently exfoliates dead skin cells.
Can I use it every day?
Start slowly, then increase if skin is comfortable.
Do I need sunscreen?
Yes, daily.
Explore more Face Serums and the full Skincare range at myskincarely, or see everything we carry from Dr. Dennis Gross. Free shipping on all US orders. For general skin care guidance, visit the American Academy of Dermatology.










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