• Positive

    • A selection of good T boosting ingredients
    • Several anti-estrogen components
    • Good serving schedule
    • Some good reviews
  • Negative

    • Uses proprietary blend
    • May cause side effects
    • Missing key T boosting and estrogen blocking elements
    • Uses disproven Tribulus
  • Ingredients :
  • Price :
  • Trust :
  • Testimonials :
  • Company :
  • Overall Score: 6.0/10

It’ll shock to no-one how much focus testosterone boosters put on helping raise your T. But in truth, that’s only half the battle.

You should also have an eye on lowering your levels of the female hormone, estrogen. Yup you’ve got that too, and it starts to creep up as we age, damaging T production.

This is why we’re keen to check out ProSupps Halotropin, which bills itself as a ‘T booster & Estrogen Blocker’.


That’s exactly what we want to hear. They don’t call it a hormonal balance for nothing y’know. So we know the marketing department have done their job at least, but what about the lab?

The best way to figure out if a booster is worth your time and money is to first look in detail at the ingredients and their dosages. In Halotropin’s case that’s going to be tough, because infuriatingly the main body of the formula is wrapped in a 1,100mg proprietary blend.

For those of you who don’t know, proprietary blends are an FDA loophole which lets companies avoid telling you exactly how much of each ingredient you’re getting. This means a) no guarantee of doses high enough to work and b) no way to rule out side effects.

Let’s check it out anyway and see if Halotropin has the (literal) secret to success.

How Does It Work?

At a Glance

  • ZMA combination to support T.
  • White Button Mushroom & DIM to block estrogen
  • Fenugreek to balance blood sugars
  • Tribulus to supposedly raise T
  • Rhodiola & Ashwagandha to lift energy and focus

We’ll check out all this in more detail after the scores

The Scores


Patchy doesn’t begin to cover it. There are strong choices like fenugreek, magnesium, mucuna pruriens and nettle, which will all help T, but these are let down and mysteriously mixed up with some duds.

The estrogen blocking side isn’t nearly as convincing as it could have been, and the formula is fleshed with a few pointless libido boosters.

There are questions all round here. With the good, it’s how much are we getting? With the under researched, it’s are you sure? And with the bad, like Tribulus, it’s what are you trying to pull?


Although Halotropin is far from all bad, north of 40 bucks a month is a lot for most of us to take out the budget. We’re missing enough answers about – and ingredients from – this formula to say we don’t think it’s worth it.

If you’ve got the cash, by all means give it a try but there are other brands around the same price range which are more impressive. Our advice is hold out for them.


Halotropin is made in the U.S, which means it has to meet certain manufacturing standards before reaching you.

However, it still falls short in our eyes as far as standards of consumer trust. There’s no excuse for not letting you guys or us in on what doses are used. It suggests the balance of good and bad ingredients in this really mixed bag of a booster may not be the greatest.

We also wish they’d been a little more careful with that zinc and cut out any risk.


In ideal world ProSupps would have a really detailed breakdown of user experiences in their own testimonial section, but the world is pretty far from ideal. There isn’t one.

As far as customer feedback on retail sites, Halotropin reviews generally do pretty well. But there are enough ‘didn’t work for me’ and ‘did nothing’ reviews out there to leave us wishing for a bit more depth so you knew who to believe before opening your wallet.


ProSupps are a supplement company founded in Texas and operating since 2004. In that time they have achieved great success, worldwide reach and have a number of products to their name, including T boosters, fat burners and pre-workouts.

They are by no means a shady company, but the occasional use of synthetic compounds and regular reliance on proprietary blends, we could do without.

How Do I Take It?

Users take 3 servings of 1 cap a day.

This on the money, as far as getting the most out of your supplement for a full day. Regularly topping up active ingredients hours apart means they never start to tail off at any point.

Any Halotropin Side Effects?

When you don’t have individual volumes of each ingredient, it’s hard to rule out completely, but our main concern here is what we do know for sure, the high levels of zinc.

Nausea, vomiting and diarrhea are all associated with too much of the mineral, and continued use could mean copper deficiency, stomach or kidney damage.

Where Can I Get Halotropin?

Halotropin is available from Vitaminshoppe.com for just under $42. This gets you a months supply.

Ingredients – In Detail



Great to see. Zinc promotes building blocks for T like luteinizing hormone, folicle stimulating hormone and human growth hormone.

Magnesium lowers your Sex Hormone Binding Globulin raising the amount of T in our body free to use.

But there’s a problem. Daily tolerance for zinc is 40mg and here we’re getting 50mg per serving. That means the potential for side effects.




Another potentially useful choice undercut by having no dose. In the right amount this can raise libido, stimulate androgens, and help balance blood sugars. That last one is important as this helps regulate insulin and stops skewed levels getting in the way of T.




Little to no effect on your T but some studies report an increase in sexual arousal.



Mucuna Pruriens

Another good choice if the dose is right. Promotes the amino acid L-DOPA, which stimulates T. It also cuts cortisol, the stress hormone. Lowering it not only stops T being blocked but improves your mood. Big question mark over amount though.



Tribulus Terrestris

Terrible choice, any hype this plant once had as a T booster has long since been disproved. It’s really frustrating to see brands still cling to (and charge for) a busted flush. However much there is it’s too much.




DIM is a nutrient found in green leafy veg which shows promise as an estrogen blocker in some studies. Trouble is, in certain doses it can boost the female hormone, and we don’t know how much Halotropin has. Do you feel lucky, hunk?


Rhodiola Extract

Does nothing for your T directly but studies do show it lowers the hearts response to exercise allowing you to keep going for longer.



White Button Mushroom

Though it has shown some ability to limit estrogen, the studies so far have mainly been in vivo. Needs more animal or human studies we feel. There are other more established ways of limiting the female hormone.


Bulbine Natalensis

An African herb which shows some success raising in T in rats at levels of about 50mg/kg of bodyweight. Long term use though has been seen to cause organ damage in some cases similar to that caused by cycling steroids


Dodder Seeds

These berry seeds are used in everything from T boosters to penis enlargement pills, so the must be something special, right? Well, in rats maybe. But human studies have offered no real evidence of benefits.



Urticia Diotic

Otherwise known as nettle. The beta sitosterol in this ingredient is actually great for lowering SHBG and freeing up more T, it’s just a pity we can’t be sure Halotropin gives us enough to do it effectively.


Anything Missing

On the testosterone side of Halotropin’s approach it’s a shame not to see any D-Aspartic Acid or Vitamin D3, which are cornerstones of most good boosters.

When it comes to blocking estrogen, the lack of any vitamin B6 is particularly disappointing. And maybe another solid anti-aromatase like luteolin.


Reviewing Halotropin is a little like panning for gold. You have to sift through a lot of crap to find a flash of good stuff every now and again.

Is it worth it for you though? It’s a no from us because there are plenty of boosters out there for around the same price with formulas that are ready made solid gold.