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Jason Alexander Shows Off Results Of Successful Hair Treatment

9/27/2011 9:30pm EDT

Jason Alexander

Seinfeld star Jason Alexander is sporting a full head of hair after undergoing treatment to combat baldness.

The actor, 52, spent the summer trying new treatments to reverse his longterm thinning hair problem, and he admits the process has been successful.

In a post on, he writes, "I am experimenting with some interesting hair systems. Don't be shocked if you suddenly see pics of me with more hair than usual."

Alexander sported his new look at the Casting Society of America's 27th Annual Artios Awards ceremony in New York on Monday.

Photo Credits: Claudio Uema / PR Photos; PRN / PR Photos

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