Up until the recent launch, Peter Roth Thomas was rather secretive. We now know why. The product contains 17-Phenyl Trinor Pge2-Sa. This is a prostaglandin analogue, a glaucoma drug that can have side effects such as affecting eye sight and changing the color of your eyes.
There is also vitamin A, which seems rather harsh for the eye area. I must admit that I rather like the unusual inclusion of radish root as the preservative of choice.