Powerful-Strength Vitamin C Serum
All Skin Types, including Sensitive Skin
A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid that visibly diminishes fine lines in just 2 weeks. Paraben-Free. Alcohol-Free. Mineral oil-free. Dye-free.

What It Is
A Vitamin C serum that boosts radiance, helps firm skin and visibly diminishes fine lines, wrinkles and pores for smoother-looking skin. Formulated with 10.5% L-Ascorbic Acid and renewable 2% Ascorbyl Glucoside plus Hyaluronic Acid, this patented, water-free concentrate is a Kiehl’s customer favorite. Paraben-free, alcohol-free, mineral oil-free, and dye-free.
What It’s Good For
- Helps visibly reduce lines and wrinkles while helping firm skin over time
- Smoothes skin’s texture and helps visibly minimize the appearance of pores
- Antioxidant Pure Vitamin C penetrates skin’s deeper surface layers and remains effective in skin for up to 6 days
- Provides visible results in just 2 weeks
- Dermatologist-tested for safety
- Formulated for all skin types, including sensitive skin
- Made with Recyclable Packaging
How to Use Our Vitamin C Serum
- After cleansing, apply two pumps of Vitamin C serum over entire face, avoiding the eye area
- As it blends into skin, you may experience a feeling of warmth as the formula activates
- Avoid the eye area; in case of contact with eyes, rinse them immediately
- Discover our other anti-aging formulas like our nighttime facial oil and our micro-dose anti-aging retinol serum.
When to Use
- Apply morning and night, after cleansing and toning and before your moisturizer
Did You Know?

Our Vitamin C Serum Results

How quickly can I expect to see results from Kiehl’s Vitamin C Face Serum?
Immediately: Vitamin C Serum Visibly Improves Skin Texture and Boosts Radiance
In 2 weeks: Vitamin C Serum Reduces Lines and Wrinkles
In 4 weeks: Vitamin C Serum Visibly Reduces Deep-Set Wrinkles
*Results from an 8-week clinical study. Photos not retouched. Individual results may vary.
Frequently Asked Questions
Answers to Your Frequently Asked Questions
What makes Kiehl’s Powerful-Strength Line-Reducing Concentrate unique?
What are the benefits of Vitamin C?
What are the different forms of Vitamin C within Powerful-Strength Line-Reducing Concentrate?
Should you pair Powerful-Strength Line-Reducing Concentrate with SPF?
What age is a Vitamin C serum recommended for?
Is a Vitamin C serum recommended for sensitive and acne-prone skin?
Does Powerful-Strength Line-Reducing Concentrate help with hyperpigmentation?
How do you apply your Vitamin C serum?
How often should you apply a Vitamin C serum?
Where do you store your Vitamin C serum?
Is it safe to use this product during pregnancy and breastfeeding?
Complete Your Routine
