TSUYAHIME RICE BRAN EXTRACT™
Item listed in the “Japanese Standards of Quasi-drug Ingredients”
Skin beauty extract from the rice bran of Tsuyahime brand rice grown in Yamagata, Japan
TSUYAHIME RICE BRAN EXTRACT™ is an extract from the rice bran of Tsuyahime brand rice grown in Yamagata, Japan. It is extracted with 1,3 butylene-glycol aqueous solution.
Tsuyahime is a new branded rice variety developed by Yamagata Prefecture. Tsuyahime has inherited the genes of Kameno-o, a legendary rice from the Shonai region of Yamagata. Kameno-o has also given rise to quintessential Japanese rice brands such as Koshihikari and Sasanishiki.
TSUYAHIME RICE BRAN EXTRACT™ is extracted from the rice bran remaining after it is cold pressed without the use of organic solvents through a continuous high-pressure cold press system. This enables us to obtain an extract that is safe and has superior heat denaturation properties.

1. Features
- Contains physiologically active substances unique to rice
Rice bran contains vitamin B1, vitamin E, tocotrienol, γ-oryzanol, ferulic acid, inositol, phytic acid, and GABA, among other substances. - Functionality
The product has DPPH radical scavenging activity, so it can be expected to deliver anti-aging benefits.
When it is applied to the skin, it can increase the water content in the stratum corneum, so it can be expected to deliver a moisturization effect. - Conforms to “Rice Bran Extract” under Japanese Standards of Quasi-Drug Ingredients (JSQI)
2. Specification
INCI | Chinese INCI | Content (%) |
---|---|---|
ORYZA SATIVA (RICE) BRAN EXTRACT | 稻(ORYZA SATIVA)糠提取物 | 1.0 |
BUTYLENE GLYCOL | 丁二醇 | 49.5 |
WATER | 水 | 49.5 |
Product specifications
Test item | Specification |
---|---|
Appearance | A light yellow to yellow-brown liquid, with a characteristic odor |
Identification | A red precipitate develops. |
Specific gravity | 1.010 - 1.040 |
Refractive index | 1.380 - 1.410 |
pH(1→10) | 5.0 - 8.0 |
Purity test (1) Heavy metals | 50 ppm or less |
Purity test (2) Arsenic | 2 ppm or less |
Residue on ignition | 0.5 - 1.5 % |
Residue on ignition | 0.5 % or less |
Packaging
1 kg (hybrid can), 10 kg (cardboard-plastic composite container)
3. Functionality
Anti-oxidant activity

Moisturization activity

4. Technical data
- TSUYAHIME RICE BRAN EXTRACT™ Technical data (PDF: 343KB)