What it is: The Tunemakers Retinol Derivative Essence is a lightweight, targeted serum created to refine skin texture and improve the look of fine, delicate areas such as around the eyes and mouth. Using a stabilized form of retinol derivative, this essence delivers gentle renewal while remaining non-irritating and easy to integrate into any skincare routine. Available in both 30 ml full size and 10 ml mini size , it’s a versatile option for long-term care or travel use. Product Size: 10ml OR 30ml Product From: Japan