tHermoCEUTICAL Optimum 20C Serum

tHermoCEUTICAL Optimum 20C Serum is a high-concentration vitamin C antioxidant serum designed to brighten dull skin, improve uneven tone, and support firmer, more radiant-looking skin.

tHermoCEUTICAL Optimum 20C Serum features ascorbic acid (vitamin C) alongside a powerful antioxidant complex of ferulic acid and resveratrol to help defend against oxidative stress while improving the appearance of photo-damaged and aging skin.

Beta-arbutin provides additional brightening support for discoloration and uneven tone. The oil- and water-free formula delivers concentrated antioxidant care for skin experiencing dullness, visible sun damage, or loss of elasticity.

Key Benefits

• Brightens dull, lackluster skin
• Helps improve uneven skin tone
• Targets the appearance of discoloration
• Provides antioxidant protection
• Supports firmer, more elastic-looking skin
• Helps improve visible signs of photoaging

Key Ingredients: Ascorbic Acid (Vitamin C) · Ferulic Acid · Resveratrol · Beta-Arbutin

Best For: Dullness · Dark Spots · Uneven Tone · Sun Damage · Fine Lines · Loss of Firmness

Size: 30mL