Wissenswertes

Released on Blu-ray by Vinegar Syndrome in December 2023 as part of their "Lost Picture Show" box set.

First screened on the final day of the 1970 Cannes Film Festival under the title 'The Sex Serum of Dr. Blake'.

Shown at many U.S. drive-ins as a supporting feature for the re-released ISLAND OF LOST GIRLS(1969)

Though often labeled a "lost" film, two prints are rumored to be extant in private U.S. collections, both bearing the original release title "The Sex Serum of Dr. Blake". A third print, reputedly once held in a Las Vegas, Nevada public library, was either discarded or stolen.

Belfilm is believed to hold the home media rights and has a 35mm Dutch-subtitled print under the "Sex Serum of Dr. Blake" name.