4-Andro is the best prohormone for bulking and is the closest thing to using synthetic testosterone.

First, let me start by saying that 4-Andro is not some shity test booster. 4-Andro  gives you additional testosterone on top of your own production! With a surplus of testosterone in your body, you create an anabolic environment that promotes increases in muscle mass, strength, energy, endurance, and muscle recovery.

Testosterone is both anabolic and androgenic, meaning that users will experience increases in muscle mass as well as in strength. With added testosterone, red blood cell count will increase as well resulting in improved muscle pumps during workouts as well as improved protein synthesis. 4-Andro is a true bulking compound, resulting in mass gains with some water retention. 4-Andro may convert to estrogen, so it is a good idea to stack it with an estrogen blocker.

Today’s 4-Andro products are not methylated. Hence, damage to the liver like most steroidal products are unlikely. 4-Andro will convert through a two step process into the master hormone known as testosterone. Testosterone is generally used as the base of most cycles which is why all the old school bodybuilders used to say “test is best”! I always suggest using this compound with cycle support to help control blood pressure and an estrogen blocker to prevent unwanted side effects.

Benefits of 4-Andro

Increases muscle mass
Increased sex drive and erection quality
Improves strength
Lessens recovery time
Increases nitrogen retention
Increases protein snythesis

Possible Temporary Side Effects of 4-Andro

Slight estrogen conversion so it is a good idea to stack it with an estrogen blocker
Increased blood pressure
Increased agression
Possible Reduced sex drive
slight water retention but an estrogen blocker can help with this

What you need to look for in a great 4-Andro product

Generous Dosing

You need to use 4-Andro for 4 to 6 weeks to see the maximum benefits. Most people will start to notice results around the third week. The sweet spot for 4-Andro is around 300 to 500 milligrams per day so you will probably need more than 1 bottle. Therefor, you are going to want to get the highest dose available with as many serving per bottle.

No Proprietary Blends

Try to avoid anything that does not list the exact amount of 4-Andro on the label. A common trick in the supplement industry is masking ingredient amounts with ‘proprietary blends’. Many companies claim to use ‘proprietary blends’ as a way of keeping competitors from stealing their ideas. However, most the time they just use it as a way of ripping off the consumers because they don’t have to disclose how much of any ingredient is being used in the product. You should avoid any products that are masked with proprietary blends.

Liposomal technology

The reality is that DHEA compounds lose 86% of their potency as they travel into the bodies blood stream. Liposomal Technology was created 50 years ago to help transport drugs effectively through the body.  With Liposomal Technology, the bio availability is 99%.

Liposomes protect the compound from the digestive enzymes that would prematurely break it down.

Grapefruit extract for greater absorption

Bergomottin is an organic chemical compound found in grapefruit juice. The grapefruit juice effect alters the metabolism of pharmaceutical medications. Grapefruit extract obstructs the enzyme CYP3A4, to heighten the concentration of medication in the blood. As a result, it enhances the bio availability of 4-Andro for maximum absorption.


Sparta Labs 4-Andro is the best product out on the market right now and  gave me excellent results. That brand has all of the things needed to ensure maximum absorption and is reasonably priced. CLICK HERE to see more about  4-Andro.  As I mentioned in the 1-Andro Review, the attached esters in the other products didn’t provide me any additional benefits. I think most of the whole ester thing is more of a marketing tactic than anything. Earlier in this article I mentioned that 4-andro was a great test to us in a cycle . What I meant by that is by using this with another compound, you can get an even greater effect. With these compounds, one plus one doesn’t always equal two. A lot of times it actually equals three or four.

With that being said, I would suggest stacking this with other prohormones for greater results.

Happy Bulking guys!