New Launch: Serum Featuring 4% High-Concentration Kojic Acid, a Popular Ingredient in Luxury and Korean Cosmetics

Ashitarunrun Lab Co., Ltd., a company focused on femtech and femcare, will release its new 'Kojic Acid 4% Serum Gel Type' on Monday, June 15, 2026. This product was developed under the company's 'Ashitarunrun' brand, focusing on the highly popular skincare ingredient kojic acid.

Developed in response to the growing 'ingredient beauty' trend and consumer feedback about the high cost and lack of transparency regarding concentrations in existing kojic acid products, this serum guarantees a 4% concentration as stated in its name. It features a fresh, non-sticky gel texture suitable for both morning and evening routines.

In addition to 4% kojic acid, the formula includes other beauty ingredients such as oil-soluble vitamin C derivatives (Tetrahexyldecyl Ascorbate), arbutin, and lychee seed extract, all aimed at enhancing skin transparency.

[Product Specifications] - Name: Kojic Acid 4% Serum Gel Type - Volume: 30mL - Country of Origin: Japan - Retail Price: 2,780 yen (tax included) - Subscription Price: 990 yen for the first purchase, 2,480 yen for subsequent orders - Launch Date: June 15, 2026