Herbalife, the Los Angeles-based health supplement company, reported its best quarter in its history, causing the company’s stock price to rise 12 percent Tuesday.

The company reported second-quarter net income of $81.9 million or $1.32 per share, compared with $48.3 million or 77 cents per share the year before.

Revenue for the quarter totaled $689 million, an increase of nearly 21 percent compared with the same period last year.

“This quarter our distributors have truly outdone themselves and delivered the three highest months of volume in our 30-year history, which far exceeded even our most optimistic expectations,” Chief Executive Michael Johnson said in a statement.

Shares of Herbalife closed at $54.93 on the New York Stock Exchange, up $5.74 or 12 percent for the day.