Androsta-3 5-diene-7 17-dione, better known as Arimistane, is an aromatase inhibitor. This means that it reduces the production of estrogen in the body.

When estrogen is reduced, testosterone levels start to increase, meaning this compound has many different uses.

Many bodybuilders and other athletes use it while on cycle to help fight off estrogen related side effects such as gyno, bloating, and decreased libido. Besides that, it’s also extremely popular as a post cycle therapy supplement for light cycles.

It’s popular compared to other aromatase inhibitors because Arimistane is the only one available over the counter, meaning you don’t need a prescription to buy it.

Keep reading, and we’ll show you what it can be used for and where you can pick it up.

Don’t have time to read our article and want to find the best supplement that contains Arimistane? Click here to visit Rebirth PCT.

Using Arimistane Standalone

Many users take Arimistane supplements to help them improve muscle mass, strength, and performance.

It’s because Androsta-3 5-diene-7 17-dione lowers estrogen levels, which positively impacts testosterone.

We all know that testosterone plays a role in gaining muscle and strength, so when the hormone increases, it all becomes a lot easier.

That means you’ll pack on size faster, recover faster, and have more strength during your workouts. Most people use it standalone for 8 to 12 weeks and end up gaining a notable amount of weight.

You can also stack it with other supplements to get an even more significant boost in performance during this period.

Using Arimistane as your PCT

Another excellent way of using Arimistane is to use the compound as post cycle therapy. Since it works as an aromatase inhibitor, it fights off excessive estrogen, which increases testosterone levels.

And that’s precisely what you’re going to need during post cycle therapy (PCT). It’s a gentle yet extremely effective way of helping your hormones bounce back.

And what’s also important is that it’s possible to get this over the counter instead of buying other ancillaries from sketchy sites.

Rebirth PCT contains Arimistane and many other ingredients that’ll make sure you recover as fast as possible from a cycle. Click here to visit the Rebirth PCT product page to learn more.

We use it after cycles with SARMs or prohormones and always feel better after just a week of using it.

It’s also worth pointing out that it has helped us preserve nearly all the gains we’ve made from our cycles.

Arimistane Dosage And Half-Life

Arimistane is a potent and effective aromatase inhibitor, meaning you shouldn’t jump into a large dosage straight away.

If you take a high dosage immediately, it’s possible to lower your estrogen levels too much, which you want to prevent.

Generally speaking, Arimistane is used at dosages of 25 to 100mg per day. Our advice would be to try out 25mg on your first day and gradually build up your dosage until you find your sweet spot. Most find that this is around 75mg per day maximum.

Arimistane’s half-life is between 2 to 3 hours, meaning it should be dosed several times per day for optimal effects.

This means you’re going to need the right type of product that gives you the option to spread the dosage throughout the day. That’s the next topic we’re going to cover; make sure to keep reading.

What Is The Best Arimistane Supplement?

Unfortunately, there’s not a lot of Arimistane supplements left on the market. They’ve become harder to source, meaning you need to know where to look.

The product we recommend buying is Rebirth PCT; it contains Arimistane and about ten other potent ingredients that can assist you.

Best Arimistane Supplement

Click here to visit official Rebirth PCT product page

It contains 75mg of Androsta-3 5-diene-7 17-dione per serving of 6 capsules. That means that one pill holds roughly 12,5mg, making it easy to dose and maintain stable levels in the body.

If you feel like starting with a low dosage, you can just take one or two pills and go from there.

Other Arimistane supplements typically contain 75mg per 2 capsules, meaning you’ll have to jump right into a relatively larger dosage.

Plus, you’re also getting many other ingredients with Rebirth, which will increase your testosterone levels.

Many users take Rebirth after a cycle of SARMs or prohormones as it helps them speed up recovery significantly.

Head over to the official Huge Supplements site to pick up this supplement; it’s one of their best-sellers.

Can Arimistane Cause Side Effects?

Arimistane shouldn’t cause any side effects when you know what you’re doing. But it’s essential to follow the dosage protocols mentioned earlier in this article.

Of course, there are always people that take too much too quickly, and they can end up experiencing several side effects.

Because when you take too much Arimistane, you can ”crash” your estrogen levels, which basically means that they’re too low. This causes side effects such as decreased sex drive, an increase of fat, and fatigue.

But don’t worry, none of this will happen if you start with a low dose and work your way up from there until you’re satisfied with the effects.

Will Arimistane Help For Gyno?

If you’re experiencing gyno (gynecomastia) and you want to try and get rid of it, it’s possible that Arimistane can help you.

It’s often a side effect caused by elevations in estrogen levels. Since this product is an estrogen blocker, it could get your levels back in check and reduce or remove the gyno.

It’s essential to move fast when it comes to battling gyno, so make sure to get it as soon as possible. You can order Rebirthfrom the official site, and it usually ships out within 24 hours. That means you’ll be able to take action within just one to two days.

There’s no guarantee it’s going to work, but it’s definitely worth trying since it’s a relatively cheap solution.


Arimistane or Androsta-3 5-diene-7 17-dione is an excellent aromatase inhibitor compound. It has a wide variety of benefits and can be used to:

  • Prevent and combat estrogen related side effects on cycle.
  • Increase testosterone levels when used standalone
  • The perfect post cycle therapy supplement after SARMs or prohormones

We’ve gone through several types of products containing this ingredient, and we’ve concluded that Rebirth PCT is the best supplement available.

Not only does it contain plenty of Arimistane, but it can also be dosed efficiently and holds many other science-backed ingredients.

Make sure to stay within the advised dosage and cycle length guidelines when using this supplement.


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