Azelaic acid is now available in a serum that makes it easy to incorporate into your daily skincare routine.
"AZA Clear® Serum" is now available from the medical-only brand "DRX®".
July 21, 2026
ROHTO Pharmaceutical Co., Ltd. (Headquarters: Osaka City, President: Hidetoshi Segi) will launch "DRX AZA Clear Serum," a serum containing azelaic acid *1, from its medical-only skincare brand "DRX" on Tuesday, July 21, 2026. "DRX" is a medical-only skincare brand that has focused on the quality and usability required in medical settings. The company has been interested in the potential of azelaic acid since its early days, and since launching the azelaic acid-containing cream "DRX AZA Clear(R)" in 2011, it has accumulated knowledge and formulation technology for azelaic acid for more than 15 years. Based on this knowledge, the company has now developed a serum formulation that is easy to apply to the entire face, and will deliver azelaic acid as a new option that makes it even easier to incorporate into daily skincare.
*1: Skin conditioning ingredients
Leveraging accumulated knowledge from medical practice to propose new applications for azelaic acid.
"DRX" is a skincare brand exclusively sold to medical institutions, launched by our company in 2005. Through our interactions with doctors and medical professionals who work directly with patients' skin in medical settings, we have pursued quality, usability, and ease of continued use, and have utilized this feedback in product development and information provision. Starting with the knowledge gained in the medical field, we translate it into products through research and development and formulation technology, expanding the value of skincare beyond just products sold exclusively to medical institutions. We cherish this cycle as a unique strength of Rohto Pharmaceutical.
Within the context of these "DRX" initiatives, our company recognized the potential of azelaic acid early on, and in 2011 launched "DRX AZA Clear," an azelaic acid-containing cream sold exclusively at medical institutions. Since then, we have accumulated knowledge and formulation technology regarding azelaic acid through proposals to medical institutions. Azelaic acid is a poorly soluble ingredient that does not dissolve easily in water or oil, requiring advanced formulation technology for its development. Furthermore, the unique feel of azelaic acid was a major challenge. Against this backdrop, we developed a serum-type beauty serum that is easy to apply to the entire face, using a formulation design that focuses on the unique feel of azelaic acid and our unique formulation technology. Bringing the knowledge of azelaic acid accumulated in the medical field to daily skincare proposals, "DRX AZA Clear Serum" is a new product that embodies the manufacturing expertise we have cultivated with "DRX."
Product features
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Azelaic acid itself is included as a skin-conditioning ingredient.
While azelaic acid comes in various forms, including derivatives, "DRX AZA Clear Serum" is a beauty serum that contains azelaic acid itself.
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Our unique formulation technology has resulted in a serum formula that is easy to use all over the face.
This product incorporates azelaic acid, a poorly soluble ingredient that is difficult to dissolve in both water and oil, using a unique formulation technology that prioritizes user experience. Its serum-like consistency makes it easy to apply to the entire face, resulting in a user-friendly formula that's easy to incorporate into your daily skincare routine.
Product overview
| Product name |
DRX AZA Clear Serum |
| image |
 |
| classification |
cosmetics |
| Contents |
26 mL |
| price |
オープン価格 |
| Sales channels |
Hospitals and clinics that carry Rohto Pharmaceutical's clinic-exclusive skincare products
*Purchasing this product requires a medical examination and consultation at a healthcare facility.
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- "DRX" is a registered trademark of ROHTO Pharmaceutical Co., Ltd.
- "AZA Clear" is a registered trademark of ROHTO Pharmaceutical Co., Ltd., Ltd.