Contributes to a healthy and sustainable lifestyle!

A moisturizer is a skincare product used to maintain the moisture level of the skin. It’s not just for dry skin either, but a must-have for every skincare routine. This includes oily, combination, and sensitive skin types. The purpose of a moisturizer is to hydrate the skin and then seal it in moisture. Some fermented and highly safe product like polyglutamic acid can penetrate into the deeper levels of skin, bringing moisture and nutrients into those levels to better care for the skin.


Film-formers are polymers capable of forming a cohesive and continuous film on keratinous surfaces with optimal adhesion and flexibility properties. These polymers offer a different and complementary approach to meeting evolving consumer needs through the formation of a potentially long-lasting “second layer” over the skin. Our pullulan as an excellent film-former and platform for many innovative applications, has been widely applied in manufacture of facial masks, cosmetic creams and lotions as well as mascara creams.

Traditionally, a preservative is a synthetic compound that prevents or inhibits microbial growth and extends the shelf life of various products, including pharmaceutical drugs, cosmetic products, biological products (vaccines), food products, woods, paints, etc. The preservative products supplied by Greenwood Bio, however, are all fermented rather than synthetic, from natural raw materials, glucose, yeast, good quality strains etc. Our products are of the highest degree of safety. Nisin and natamycin are both GRAS materials.


Different from nisin or natamycin, epsilon poly l lysine (ε-Polylysine) is a wide-spectrum preservative against not only gram-positive bacteria but gram-negative bacteria and mold and yeast. It is a natural food preservative with high efficiency manufactured from a fermentation process using Streptomyces albulus under aerobic conditions. Epsilon poly l lysine (ε-Polylysine) is widely used as a food preservative for drinks and processed meats. 

Compare with the wide application in food industry, it is less known that natamycin is an antifungal drug for topical ophthalmic administration. It is a tetraene polyene antibiotic derived from Streptomyces natalensis. It possesses in vitro activity against a variety of yeast and filamentous fungi, including Candida, Aspergillus, Cephalosporium, Fusarium and Penicillium.


Pullulan is a naturally occurring polysaccharide (a type of carbohydrate) produced by certain strains of yeast, specifically Aureobasidium pullulans. It is commonly used in various industries, including food, pharmaceuticals, and cosmetics, for its unique properties.