Powerful-Strength Vitamin C Serum : A potent Vitamin C serum formulated with 12.5% Vitamin C and Hyaluronic Acid that visibly diminishes fine lines in just 2 weeks. 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.
Retinol Skin Renewing Daily Micro Dose Serum : Our potent retinol serum is formulated with Pure Retinol in a daily-strength micro-dose, along with Ceramides and Peptide, to promote gentle skin surface turnover for youthful-looking skin. The precise micro-dose formulation of our anti-aging serum delivers visible results with minimal visible redness, dryness, or peeling. Wrinkles are visibly reduced, skin is firmer, pores appear minimized, and skin tone and texture are more even. Our retinol serum is a fast-absorbing lightweight cream. 90% of users, even first-time Retinol users, agree skin feels comfortable and 94% agree texture feels refined [2]
In a clinical evaluation, 100% showed wrinkle reduction and 90% showed improved skin firmness [1].
Results based on:
[1] Expert grading in a clinical test after 12 weeks of use
[2] Consumer perception test after 12 weeks of use
