Katana

	Katana Review Summary
Katana™ is advertised as a male libido enhancer, using an Asian formula. The name “Katana” comes from the Japanese long sword, and claims to be a proven formula used for centuries in the Orient. Katana™ promises to increase or restore the sex drive, intensify sensation, increase blood flow to the penis and help produce stronger, longer-lasting erections. The formula utilizes a few of the popular extracts from around the world in its attempt to produce these results. We will take a closer look at the formulation below.
	Ingredients At A Glance
The formula may come from the Orient, but not all of the herbs do; the product contains herbs from Eastern Europe and South America as well as the Asian extracts. Katana™ contains the amino acid L-Arginine plus a blend of herbal extracts. Eurycoma Longifolia is thought to increase testosterone levels, Korean Ginseng is used for increased endurance and vitality, Tribulus Terrestris helps boost testosterone production and Peruvian Maca is a root that is traditionally used as an aphrodisiac.
	Ingredients In Focus
L-Arginine is often included in male enhancement supplements for its aid increasing nitric oxide levels in the blood. Nitric oxide helps relax the chambers of the penis, allowing more blood to flow to this area and resulting in a stronger erection. It is also thought to help improve fertility. Tribulus Terrestris, as mentioned, is used in male enhancement formulas for its ability to increase testosterone production. This herbal extract has been clinically proven to do this; an increase in testosterone can help maintain male sexual health and improve muscle mass and endurance. Eurycoma Longifolia is also included in some supplements for the belief that it can help support healthy testosterone levels; one study done on middle-aged rats has shown this to be true, but no human studies have been done. Nevertheless, it continues to be promoted as a beneficial hormone balancer, though not as widely used as Tribulus.
	Lifestyle
Men may get to a certain point in life where they no longer feel as desirable as they used to, or that they do not desire sex as much as they used to. An herbal supplement to enhance the libido may be an option for treating these symptoms. As far as increasing libido, however, the formula for Katana™ seems rather light. The product would benefit from the inclusion of Yohimbe in its formula; like L-Arginine, Yohimbe promotes penile blood flow, but this African bark extract has been recognized by the FDA for its effectiveness in producing harder, fuller erections and is often used to treat symptoms of impotency. Men seeking a potent formula for enhancing libido may want to try a product that contains Yohimbe, plus additional herbs that have aphrodisiac properties. Yohimbe has a synergistic effect with several other popular South American herbs, Catuaba and Muira Puama, and products containing these effective blends are available
	Positives
• Uses natural herbal extracts • Available for a discount when bought in bulk
	Negatives
• Does not contain Yohimbe • Label information not provided • Testimonials posted are not attributed to anyone
	Final Thoughts
As mentioned, this formula does not appear to be the most potent libido enhancer on the market. While it does contain some aphrodisiac properties and may assist with increasing testosterone, it has not been shown to be the most synergistic blend of herbs for enhancing overall sexual pleasure. Other aphrodisiacs from Brazil have been shown to have powerful effects on increasing sex drive and relieving fatigue; Catuaba and Muira Puama, discussed above, are included with Tribulus in some formulas, and work even better with the potent extract Yohimbe. Without the addition of Yohimbe, which provides a stamina boost as well as increasing blood flow to the extremities, this formula feels lacking. For men searching for the strongest formula for increasing sex drive, we recommend products that contain a combination of Yohimbe and the Brazilian aphrodisiacs, which have been shown to work together effectively.

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