Undercover Colors, the Raleigh-based startup developing a nail polish that will change color if swirled in a drink that contains a date rape drug, has raised an additional $190,000 in equity, according to a Securities and Exchange Commission (SEC) filing.

Investors in this raise include founders and company executives Tyler-Confrey-Maloney and Stephen Gray and lists Celeste Lutrario, vice president of research and development at Clorox subsidiary Burt’s Bees of Durham as a director. Charlotte angel investor David Gardner is also a backer.

The current offering has $1 million to go, according to the SEC filing.

The company, started by four North Carolina State University students as undergrads, raised $398, 988 in 2014. It also won the Lulu eGames student competition.

The company received a wide range of national media attention from the Huffington Post to the Daily Mail, including some criticism.

For more see this NCSU report on the company’s early development: http://www.highereducationworks.org/blog/undergrad-research-in-nc-states-entrepreneurship-program-helps-prevent-sexual-assault