Cyanotech Corp., the producer of nutritional and health products made from microalgae, named Andrew Jacobson as its president and chief executive officer, succeeding Gerald Cysewski, who continues with the company as executive vice president and chief scientific officer.

Cyanotech's lead independent director, Gregg Robertson, was elected chairman of the board of directors.

Jacobson, 26, was president of the personal care division of the Hain Celestial Group. He joined Hain in 1997 when the company acquired Westbrae Natural Foods, where he was president. He also served as president of natural products at Hain.

Jacobson's hiring culminates a search begun last year when the company announced Cysewski would step down as chairman, president and chief executive officer.