Kiehl's Powerful-Strength Line-Reducing Concentrate Vitamin C Serum – 1.7 Fl Oz / 50mL

Boost radiance and visibly smooth skin with Kiehl's Powerful-Strength Line-Reducing Concentrate, one of Kiehl's most iconic Vitamin C serums and a pioneer in stabilized Vitamin C skincare. Recently reformulated with even more Vitamin C, this potent, water-free serum is designed to target all the visible signs of aging in one powerful daily step.

This patented formula combines 12.5% total Vitamin C — 10.5% Pure L-Ascorbic Acid and 2% Vitamin Cg (Ascorbyl Glucoside), a derivative that activates once absorbed into skin's upper layers for added antioxidant benefit — with Hyaluronic Acid for hydration. Vitamin C, a highly efficacious antioxidant, penetrates skin's deeper surface layers and remains effective for up to 6 days, working over time to visibly firm skin, reduce the appearance of fine lines, wrinkles, and pores, and leave skin looking smoother and more radiant.

Clinically demonstrated to boost skin's radiant look, this serum is carefully formulated for all skin types, including sensitive skin, and is dermatologist-tested for safety. Its lightweight, fast-absorbing texture layers easily under moisturizer, making it a simple addition to any morning or evening skincare routine.

✨ Key Highlights:

• 12.5% total Vitamin C: 10.5% L-Ascorbic Acid + 2% Vitamin Cg
• Infused with Hyaluronic Acid for hydration
• Water-free, patented serum formula
• Clinically demonstrated to boost radiance and reduce the look of lines and wrinkles
• Helps visibly firm skin and reduce the appearance of pores
• Vitamin C remains effective in skin for up to 6 days
• Dermatologist-tested, suitable for all skin types including sensitive skin
• Paraben-free
• 1.7 fl oz / 50mL