Graphene-based product supplier Directa Plus has received international certification from Complife Italia Srl (formerly Farcoderm Srl) for its Graphene Plus (G+) membrane and G+ printed fabrics, confirming that they do not cause any irritation to human skin.

The company's G+ membrane and printed fabrics were dermatologically tested by Complife - a specialist testing agency that assesses safety, tolerability and sensory aspects of all products that may come in contact with human skin - involving 48-hour patch tests on 25 individuals. This complements previous tests conducted by Complife (then operating as Farcoderm) on all of Directa Plus' graphene-based materials, which were certified as safe for human contact.

Clothing that incorporates graphene, an innovative nanotech material derived from graphite, is said to significantly improve performance for athletes, professionals and sports enthusiasts.

The company's G+ smart fabric acts as a filter between the body and the external environment, ensuring an ideal temperature for the wearer. With G+, the warmth produced by the body is dispersed in warm climates and preserved and distributed evenly in cold climates.

"We are pleased to have our G+ membrane and printed fabrics proven to be non-irritating to human skin," says Directa Plus CEO Giulio Cesareo. "This adds to the certification we received last year that our graphene-based materials are non-toxic and non-cytotoxic.

"With our Graphene Plus textiles, our customers can truly differentiate their products as innovative, performance-enhancing and comfortable to wear. We have always prided ourselves on the safety and environmental credentials of our production processes and graphene-based products, and this new certification further represents that commitment."

Earlier this year, Directa Plus partnered with Italian sportswear firm Deewear on the development of the first graphene-enhanced compression sportswear.

Compression sportswear gets graphene boost from Directa Plus