CLARK, N.J. — NKF has arranged the $15.8 million sale of a 108,000-square-foot flex facility in Clark. Located at 175-195 Terminal Ave., the property is fully leased as the headquarters of L’Oréal’s North American R&D division. The seven-acre property includes a single-story R&D space that was recently renovated. Steven M. Schultz and Tony D. Georgiev of NKF represented the seller, Denholtz Associates, in the transaction. The buyer was undisclosed.