Quite simply, by blending a range of well-known ingredients, the likes of which you’ll see cropping up time and time again in top testosterone boosters’ formulas. Old trusties mix and mingle to give you some solid results.

It all begins with ashwagandha, one of my personal favorite supplement ingredients.

Specifically, Testosil uses KSM-66, a highly potent, clinically proven extract derived from the ashwagandha root.

KSM-66 has been extensively researched and shown to have numerous benefits, including increased testosterone levels, improved strength and muscle size, and reduced levels of the stress hormone cortisol (the so called ‘stress hormone’).

Everything you need for a good testosterone booster to build upon, basically. It’s a good start.

You will also see Fenugreek in plenty of testosterone boosters – I like to see it any that I’m about to try out, so was happy to see it included in Testosil. Again, it’s been shown to support higher testosterone output, whilst also balancing estrogen levels.

Estrogen is known as the ‘feminizing’ hormone, and maintaining a healthy balance between testosterone and estrogen is important for optimal hormone function. Again, it’s a great choice.

Testosil uses ZMA, too, which I’d never heard of. Is it some form of new or exotic ingredient, rarified and promising miracles? Well, no, but it’s solid.

Basically, it’s just a combination of Zinc, Magnesium, and Vitamin B6. This is good – again, I like to see all of these, especially zinc, showing up in any testosterone booster.

Zinc is crucial (crucial, crucial – extra, extra crucial!) for testosterone synthesis and plays a vital role in maintaining reproductive health.

Magnesium supports muscle growth, recovery, and overall performance.

Vitamin B6 is involved in regulating hormone activity and supports the production of testosterone.

All taken together, as ZMA or not (most supplements use them just as they are…), they should go a long way towards supporting improved testosterone output.

Then there is D-Aspartic Acid (D-AA), an amino acid without which I would find any supposedly reputable natural testosterone booster suspect – or, at least, deficient. It’s found naturally in the body, though often in suboptimal levels, and is responsible for synthesizing testosterone.

D-AA supplementation has been shown to increase testosterone levels, giving us all the benefits we’re looking for from a good testosterone booster.

This is the meat of it all, the stuff that gets stuff done. However, it’s not the end of the list. Testosil also contains other natural extracts and vitamins that contribute to its efficacy.

L-Arginine HCL, an amino acid, has been shown to improve blood flow, boost exercise performance, and support healthy testosterone levels.

Panax Ginseng, which I always like to see in supplements like Testosil, is an adaptogenic herb that helps the body adapt to stress, improve endurance, and enhance overall energy levels.

Allium Sativa (that’s garlic, to you and me) has various health benefits, including potential anti-inflammatory and antioxidant effects, which can support overall wellbeing.

I’m never too fussed about this – I cook mostly Mediterranean, with a heavy bias for garlic, so I doubt I’ve ever been deficient in my life. But still, it’s potentially a nice touch.

Finally, you get a couple of extra vitamins: Calcium D-Pantothenate, a B5 derivative that supports hormone synthesis and improved energy metabolism; and Vitamin D3, known as the ‘sunshine vitamin’, which is essential for overall health and plays a role in testosterone production.

I like to see Vitamin D in my supplements – I live in Scotland, so it’s kind of hard to get enough from the vanishingly rare sunny days we get over here.

Finally, Testosil has added a patented absorption enhancer called AstraGin, which contains Panax Notoginseng and Astralagus combined. This combination has been proven to escalate the effectiveness of Testosil, putting all ingredients to maximum efficacy.