UCLA sociology professor Gail Kligman says her father died Feb. 9 of heart failure at Pennsylvania Hospital.
Dr. Albert Kligman, a longtime emeritus professor of dermatology at the University of Pennsylvania, was first to show a link between sun exposure and wrinkles and patented Retin-A in 1967.
At Holmesburg Prison beginning in 1951, he directed and performed hundreds of experiments on prisoners, who were paid for participating. The city banned such testing in 1974 and a few former inmates sued in 1984, settling for sums in the $20,000 to $40,000 range.