Leverkusen, Germany – A transparent sunscreen which uses polyurethane chemistry has been developed by Bayer.
Baycusan C 2000 (INCI: polyurethane 64) is an ethanol-based polyurethane film former that can be used to produce fully transparent sun protection.
“Whether it is used in sunscreen gels, aerosol sprays or sun oils, Baycusan C 2000 is compatible with all common UV protection substances and is easy to incorporate into the product,” according to a Bayer press release.
“In comparison with other film formers, this polyurethane solution saves manufacturers time, energy and money, as it is not necessary to heat or neutralise the product,” the release said.
In vivo tests have shown that using even small quantities of Baycusan C 2000 in sun protection formulations results in significantly higher SPF than conventional film formers, Bayer said.
“This effect has already been demonstrated in emulsion-based sun protection formulations using Baycusan C 1000, and has now been confirmed again," the press release stated.