Spermine, a powerful anti-oxidant originally discovered in human sperm, is said to diminish wrinkles and smooth the skin.
According to Skin Science, spermine is “the only antioxidant that is capable of penetrating the horny layer of the skin (i.e. stratum corneum)” … and once there is “20-30 times stronger than vitamin E and offers numerous benefits including delayed cell ageing and UV protection.”