Fast forward to the bedroom, where Testosterone actually improves your erections. We don't emphasize that angle so much at NKNW, but Testosterone Gel is more effective than 99% or 100% of the "male enhancement" products out there, unless you're taking actual Viagra.
Part of the science is down to DHT, which is a sort of sub-hormone of testosterone (you'll never guess what the T stands for). Besides stronger erections, DHT gives you a deeper voice, more hair on your chest and effects your prostate. Testosterone also increases your red blood cell count, and indirectly improves your cardiovascular health.
The other factor in play is that when you have high testosterone, women appear sexier. You notice sexy little details about them, and fantasize more. The sexier the woman, the more enthusiastic you are, and the stronger and harder you perform.
No surprises there, but many men report being more interested than ever in the women around them. Meaning literally around you, face to face, where you're picking up on each other's pheromones and body language.
The contrast is with pornography. That's good to know, because otherwise the fear is that with twice the sex drive you'll just watch twice as much porn. Reactions vary, but that isn't usually the case.
So if you're married or in a relationship, NKNW might help recapture some of the magic from your honeymoon or first nights. We hope so!