A study of the leaf gel extracts of Bulbine natalensis & B. frutescens, in vivo on wound healing in pigs suggests that they increase tensile strength by increasing fibroplasia, differentiation of fibroblasts into myofibroblasts and increased collagen deposition & maturation. Pather 2012

The study explored the scientific value of the plants Bulbine natalensis and B. frutescens through investigating their in vivo biochemical effects on cutaneous wounds which revealed increased tensile strength of the wounds and increase in the collagen, protein and DNA content. Pather 2011

A study indicates anabolic and androgenic activities of Bulbine natalensis stem in male Wistar rat testes with the 50 mg/kg body weight of the extract exhibiting the highest anabolizing and androgenic activities. Yakubu 2010

The effects of oral aqueous extract of Bulbine natalensis stem on the reproductive function of Wistar rats were evaluated and showed that the extract is safe at doses of 25 and 50 mg/kg body weight for use in female rats during the organogenic period of pregnancy. Yakubu 2009

The phytochemical constituents of aqueous extract of Bulbine natalensis stem and its effect on male rat sexual behavior were evaluated for 7 days and the results are indicative of prosexual stimulatory potentials in male rats. Yakubu 2009