January 28, 2019 at 10:58 pm #5688
The prosexual effect of the testosterone booster ProLensis™ (Bulbine natalensis)
Bulbine natalensis is quickly gaining popularity in the sports supplement world. It’s easy to see why – the effects of extracts of Bulbine natalensis recorded in animal studies are amazing.
The photo shows the African botanical Bulbine natalensis. Its Zulu name is ibhucu; Afrikaners call it rooiwortel. Bulbine natalensis is an indigenous African botanical that is traditionally used in South African herbal medicine to improve potency in men (as an aphrodisiac). Additionally the leaves, roots, and sap are all used respectively for a variety of ailments: to treat bug stings, mosquito bites, blisters, cold sores, mouth ulcers, cracked skin, to soothe sunburn, disinfect cuts, and to speed the healing of bruises. Bulbine natalensis has been safely used for thousands of years in Southern Africa which means that it has been granted “traditional medicine” status and is considered safe to use.
In 2009 researchers at the University of Ford Hare in South Africa published the results of an animal study in which they had given male rats water-based extracts of Bulbine natalensis for a week. The results demonstrate that it helps to boost testosterone, progesterone, luteinizing hormone, and follicle-stimulating hormone levels and decrease estrogen levels.
A control group was given 50 mg per kg body weight of sildenafil, the active ingredient in Viagra. Sildenafil had almost no effect on testosterone and luteinizing hormone levels. The Bulbine natalensis extract however significantly increased testosterone and luteinizing hormone levels at doses of 25 and 50 mg per kg body weight. Whereas the estradiol concentration decreased significantly at all the doses in the Bulbine natalensis extract groups. (25, 50, and 100mg per kg body weight). However the extract dose of 100mg per kg body weight decreased the serum testosterone and progesterone levels in male rats. The prolactin concentration was not affected by all the doses.
The figure above shows that the extracts led to an increase in the number of times that the experimental male rats mounted the females. The effect of Bulbine natalensis is greater than the effect of sildenafil. This means that the extract heightens sexual interest and this initial rodent data suggests that it has the potential to outperform the leading erectile dysfunction drug. This may be due to the spectacular effects of the extract on increasing testosterone levels. Rodents receiving Bulbine Natalensis had a serum testosterone level equal to 347% of the control group; in that same group, estrogen was 35% lower (50 mg per kg body weight group). According to another paper by the same researchers, published in 2010, the extract activates enzymes in the testes.
These results are indicative of prosexual stimulatory potentials of Bulbine natalensis in male rats. The aqueous extract of Bulbine natalensis stem at these doses (25 and 50 mg per kg body weight) may be used in the management of disorders of desire or libido, premature ejaculation and erectile dysfunction in males. Bulbine natalensis enhanced the success rate of mating and fertility due to increased libido as well as the levels of reproductive hormones (serum testosterone, progesterone, luteinizing hormone, and follicle-stimulating hormone) in male rats.
How this data translates to humans is unclear. However preliminary data confirms that ProLensis™ (Bulbine natalensis) does in fact raise testosterone levels in human males. Since the rodent trial using the larger 100mg per kg body weight dose demonstrated a negative correlation to testosterone values it is very important that recommended doses of ProLensis™ are not exceeded as this may actually lower testosterone levels.
Athletes looking to enhance their hormonal profile, support a healthy endocrine system, or improve their recovery, can all benefit from the use of this botanical in a dietary supplement. Additionally, those looking to improve their libido or experience prosexual effects, may potentially benefit from ProLensis™ (Bulbine Natalensis).
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