Seiwa Kasei Co., Ltd. Develops 100% Plant-Derived Oil-Soluble Ingredient "Oil Pea Protein"

Seiwa Kasei Co., Ltd. (Headquarters: Higashiosaka City, Osaka; Representative Director: Masato Yoshioka), a company engaged in the research and manufacturing of cosmetic raw materials, has developed "Promois® EJ-118(CT)", a 100% plant-derived oil-soluble PPT (hydrolyzed protein) derivative, scheduled for release in April 2026.

Features of Promois EJ-118(CT) 1. 100% plant-derived functional oil ingredient (Isostearoyl Hydrolyzed Pea Protein) 2. Hair Care: Repairs damage, improves strength, provides a smooth and moist feel 3. Skin Care: Moisturizes (suppresses skin moisture evaporation, maintains hydration)

Background of Promois EJ-118(CT) Development In recent years, interest in hair damage caused by hair coloring, perms, UV radiation, etc., has been growing in the hair care market. Consequently, approaches focusing on protein, the main component of hair, are widely adopted in hair care formulations. However, traditionally, this concept has been primarily achieved with water-soluble proteins, making its application to oil-based formulations such as hair oils technically challenging. Against this backdrop, our company has successfully developed "Promois EJ-118 (CT)", an oil-soluble PPT derivative derived from peas, by applying the oil-soluble PPT (hydrolyzed protein) derivative development technology (keratin, collagen, silk, etc.) that we have cultivated to date.

Peas are GMO-free and not classified as major allergens under CODEX, EU, USA, and Japanese food regulations. They are also attracting attention for their heart disease prevention and antioxidant properties. Promois EJ-118 (CT) is the industry's first raw material with the INCI name "Isostearoyl Hydrolyzed Pea Protein", registered uniquely by our company.

How to Use Promois EJ-118(CT) / Application Scenes Promois EJ-118 (CT) is suitable for various oil-based cosmetics such as hair oils, facial oils, massage oils, cleansing oils, and body oils. Its unique feature is the ability to achieve a protein repair approach even in oil-based formulations, proposing a new approach of "protein repair with oil" and "oil care that goes beyond mere coating," which was difficult until now.

Furthermore, Promois EJ-118 (CT) is a multi-functional ingredient that provides firmness, shine, and suppleness to hair, and moisturizes skin to support moisture retention. This allows for both hair care and skin care applications, enabling a wide range of formulation designs.

Product Overview Product Name: Promois® EJ-118 (CT) Cosmetic Ingredient Name: Isostearoyl Hydrolyzed Pea Protein, Caprylic/Capric Triglyceride

About Seiwa Kasei Seiwa Kasei is a cosmetic raw material manufacturer that develops and produces ingredients for cosmetics. Approximately half of our employees are involved in research, and we have created over 100 original cosmetic ingredients to date.

[Official YouTube Channel] https://www.youtube.com/@SEIWA_KASEI [Original Vitamin C Derivative iVC Instagram - Skincare Information] https://www.instagram.com/ivc_seiwa_official/ [Hair Beauty Ingredient PPT Instagram - Haircare Information] https://www.instagram.com/pptbeauty_official/

[Company Profile] Company Name: Seiwa Kasei Co., Ltd. Location: 1-2-14 Nunokicho, Higashiosaka City, Osaka 579-8004, Japan Representative: Masato Yoshioka, Representative Director Established: December 4, 1972 URL: https://seiwakasei.jp/ Business Activities: Research, development, and manufacturing of cosmetic raw materials

[Customer Inquiries] Seiwa Kasei Co., Ltd. Public Relations & Planning Department TEL: 072-987-2626 (8:30 AM - 5:15 PM JST) URL: https://seiwakasei.jp/contact e-mail: [email protected]

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