Kiehls chemists formulated Highly Efficient Skin-Tone Corrector with Emblica Fruit Extract and were able to achieve one of the most powerful, yet safe treatments to address the significant reduction of dark spots*, age spots and sun spots. The proprietary patent-pending technology covering the use of Emblica to stabilise highly unstable ingredients including Glycolic Acid, when used together in this formula, helps to correct the appearance of uneven skin tone.
Glycolic Acid - Glycolic Acid is one of the naturally occurring fruit acids derived from sugar cane. It helps slough off the dry, rough uppermost layer, leaving skin looking smoother and healthier.
Hydroxyethylpiperazine Ethane Sulfonic Acid - HEPES, or Hydroxyethylpiperazine Ethane Sulfonic Acid, is a chemical buffer which is widely used in cell culture to maintain physiological pH. This amino-sulfonic derivative helps to improve skin and limits roughness.
*Based upon clinical evaluation of dark spots.