The Rejuvenator (1988)

A rich actress, Ruth Warren, who has gotten too old for leading roles, hopes to restore her youthful beauty. For a few years she had been financing a scientist, Dr. Gregory Ashton, who is working on a formula for eternal youth. This formula involves withdrawing certain fluids from the human brain. Although Ashton had found a serum that reverses the aging process, it was not yet complete. However Warren threatens to cut funding if Ashton will not give her the serum. Despite the warnings of danger, she willingly volunteers to become a human laboratory rat and takes the serum. The operation is successful and the rejuvenated woman regains her beauty, dubbing herself Elizabeth. However she does not realize that Ashton had to use the brains of dead bodies to get the chemical needed for the formula, which she must continue being injected with, and this leaves a limited supply shortly after. The experiment has unforeseen side effects, and turns Warren into a monster, who resorts to murder in her lust for human brains. This product is a high quality BD-R Disc.