The Rejuvenator

Rejuvenatrix is a 1988 American horror film starring Vivian Lanko and John MacKay, and directed by Brian Thomas Jones. The film was partly inspired by the 1959 science fiction film The Wasp Woman, which had been produced and directed by Roger Corman. The original title was Rejuvenatrix, although it has become more popularly known as The Rejuvenator, and this included the UK and Brazil.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.