Our technology: Supercritical CO2 extraction method
At Sleep Inc., we use supercritical CO2 extraction to maximize the beneficial ingredients found in plants. This method is a high-pressure extraction technique using carbon dioxide, which allows us to extract the beneficial ingredients purely from plants without using any chemical solvents.

Benefits of Supercritical CO2 Extraction
- Since no chemical solvents are used, there is no need to worry about residual solvents, allowing for safe and secure extraction.
- Impurities are eliminated as much as possible, and the plant's original active ingredients are retained at a high concentration.
- Extraction can be performed at low temperatures, preserving the quality of heat-sensitive plant ingredients.
- CO2 is reusable and is a sustainable extraction technology with low environmental impact.
- The plants are used in products without losing their natural aroma and flavor.

Sleep Inc.'s extraction technology and production system
Sleep Inc. has installed extraction equipment that can handle everything from pilot scale to large-scale production, and can set optimal extraction conditions according to the type of herb and its purpose.
・We use extraction machines capable of processing from a few kilograms to a few tons per day, ensuring a stable production system.
- We handle over several hundred types of plant ingredients each year, catering to a wide range of uses including food, supplements, and personal care products.
- Compatible with both liquid and solid ingredients, enabling the extraction of a wide variety of plant extracts.
- Regular maintenance and optimization by a specialized team ensures consistent quality.

Examples of CO2 extraction applications
Supercritical CO2 extraction is used in a variety of fields.
Personal care products (skin care, aroma products)
Food and beverages (herbal extracts, flavorings)
Supplements (herbal extract capsules, oil products)
High Quality Fragrances
This extraction technology allows Sleep Inc. to deliver pure, high-quality products that capture the full power of nature.