---
title: "Seiwa"
description: "Seiwa Kasei's Osaka-based cosmetic lab specializes in peptide technology, with 345 Japanese patents and extensive research in cosmetic ingredients."
image: "https://cosmetic-labs.com/wp-content/uploads/2025/07/seiwakasei.co_.jpeg"
---
# Seiwa

> Seiwa Kasei's Osaka-based cosmetic lab specializes in peptide technology, with 345 Japanese patents and extensive research in cosmetic ingredients.

Source: https://cosmetic-labs.com/world/asia/japan/seiwa
Created: 2025-03-29T06:46:13+00:00
Modified: 2026-10-23T18:09:22+00:00
Author: Emilie SCHOL

### Pioneering cosmetic research since 1960

Seiwa Kasei, established in Osaka, Japan, stands as a **cosmetic lab** with over 60 years of experience in developing innovative beauty solutions. Since its inception in the 1960s, the company has focused on advancing  and cosmetic ingredients.

### Research and development expertise

Located in the Nunoichi-cho district of Osaka, Seiwa Kasei’s facilities combine research capabilities with manufacturing excellence. The company’s scientific team specializes in:

- Hydrolyzed proteins and collagen peptides

- UV absorber microcapsules

- Hybrid polymers

- Vitamin C derivatives

### Innovation and intellectual property

With 345 patent applications in Japan and 88 international submissions, Seiwa Kasei demonstrates its commitment to innovation. The company has secured 90 approved patents domestically and 51 internationally, highlighting its position in the cosmetic ingredient sector.

#### Technical support and manufacturing

The company provides technical assistance to clients while maintaining high-quality chemical manufacturing standards. In 1980, Seiwa Supply Co., Ltd. emerged as a separate trading entity, strengthening the group’s distribution capabilities.

### Research milestones

The company’s evolution includes significant achievements:

- 1960s: Development of hydrolyzed collagen for cosmetics

- 1980s-1990s: Advanced work on peptide derivatives and silicone hybrids

- Early 2000s: Innovation in amino acid and vitamin C derivatives

### Location and market presence

Operating from Osaka, Japan’s second-largest metropolitan area, Seiwa Kasei serves both domestic and international markets. The strategic location in this industrial hub facilitates collaboration with other cosmetic manufacturers and research institutions across Asia.

---

## Site identity

- Organization: Cosmetic Labs
- Description: Cosmetic Labs is a directory and a platform to meet all your cosmetic product development needs. From sourcing raw material to finding the best CRO for your needs.
- Website: https://cosmetic-labs.com

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