Rehmannia Chinensis Extract is derived generally from the root of the Rehmannia chinensis plant, a herbaceous species in the Scrophulariaceae family. This extract is known for its regenerative, soothing, and antioxidant properties and is used in cosmetics to improve skin elasticity, reduce inflammation, and protect the skin from oxidative stress. Rehmannia chinensis root extract is often employed in skincare products, particularly those designed for sensitive, mature, or damaged skin.

Chemical Composition and Structure

This extract contains a rich combination of iridoids, polysaccharides, phenols, and antioxidant compounds. Iridoids are recognized for their anti-inflammatory and regenerative properties, while polysaccharides offer hydration and enhance the skin barrier. Phenols and other antioxidants help protect the skin from free radical damage and environmental stress, promoting skin regeneration and keeping it healthy and youthful.

Physical Properties

It is available in liquid or water-soluble powder form, with a color ranging from light yellow to brown. Its light texture makes it ideal for integration into creams, lotions, serums, and other cosmetic treatments. It is easily absorbed by the skin, providing immediate soothing action and improving hydration.

Production Process

The extract is obtained through a solvent-based extraction process, using water or alcohol, from the dried roots of the Rehmannia chinensis plant. After harvesting, the roots are dried, macerated, and extracted to isolate the bioactive compounds. The extracted solution is then filtered and concentrated to produce a highly pure, active-rich product ready for use in cosmetic formulations.

Applications

• Cosmetics: Rehmannia Chinensis Root Extract is primarily used in skincare products, especially in anti-aging creams, soothing lotions, hydrating serums, and regenerative masks. Its antioxidant and anti-inflammatory properties make it ideal for treating sensitive or damaged skin, improving skin elasticity, and reducing signs of aging. It is also used in soothing products to reduce irritation and redness.

INCI Functions:

Skin conditioning agent. It is the mainstay of topical skin treatment as it has the function of restoring, increasing or improving skin tolerance to external factors, including melanocyte tolerance. The most important function of the conditioning agent is to prevent skin dehydration, but the subject is rather complex and involves emollients and humectants that can be added in the formulation.

Tonic. This product is used to treat the hair when the scalp is clean or after shampooing. It stimulates hair growth, revitalises the scalp for healthy hair growth and reduces hair loss. It provides a feeling of well-being on skin and hair.

Environmental and Safety Considerations

Rehmannia Chinensis Root Extract is considered safe for cosmetic use and poses no significant risks of irritation or sensitization. However, as with all natural extracts, it is important to follow usage guidelines to avoid allergic reactions. Environmentally, the Rehmannia chinensis plant is sustainably cultivated, and the extraction process is eco-friendly. The extract is biodegradable and has no negative impact on the ecosystem.