A summary of Southern California-related business litigation developments during the week of Nov. 12.

FTC Tries to Cut Short Hair Growth Business: Dr. Ilona Purola, a Finnish physician, testified in federal court in Los Angeles Thursday on behalf of Los Angeles-based Pantron I Corp., the defendant in a suit by the Federal Trade Commission. The FTC charges that Pantron made false claims about the effectiveness of its Helsinki Formula product, which is advertised as being able to stop excessive hair loss and stimulate new hair growth. The court trial is expected to be completed Tuesday, Nov. 21. (Case No. CV-88-6696 RG)