• Positive

    • A lot of good T boosting ingredients
    • Majority at perfect dosages
    • No proprietary blends
    • cGMP manufactured
    • Good reputation
  • Negative

    • A couple of ingredients are under dosed
    • A couple of dud ingredients
    • Expensive
    • Poor serving schedule
  • Ingredients :
  • Price :
  • Trust :
  • Testimonials :
  • Company :
  • Overall Score: 7.8/10

Sergeant Steel Review

Named Sergeant Steel, coming from Assault Labs and promising military grade T boosting, the theme of this product is clear.

To us, Sergeant Steel just sounds like a guy who turns up to a bachelorette party with a boom box and a bride-seeking-missile under his rip away khakis. But hey, if we dismissed every booster with a cheesy name we’d hardly take any.

hello ladies

This brand promises to:

  • Boost muscle mass
  • Increase stamina
  • Raise libido
  • Improve strength
Tennnnn .... Shun!

A big plus right away is that there are no proprietary blends here. That means every ingredient is individually dosed on the label. Full info is always a must. So let’s see if male stripping’s loss really is T boosting’s gain. And if he’s stainless steel or just the mild variety…

How Does It Work?

At a Glance

  • Ashwagandha to raise endurance
  • Fenugreek to balance blood sugars
  • D-Aspartic Acid & Vitamin D3 to boost T
  • Maca & Longjack for libido
  • Tribulus allegedly to help test levels

We’ll dig deeper into Steel’s make-up after the scores

The Scores

The Scores

Sergeant Steel is one of those products that has a massive ingredients list. Trouble is that to squeeze that many ingredients in one product, you may end up with underdosed elements. As is the case here … however only for a couple of them (courtesy of having to take 10 pills a day).

Vitamin D3 is at 60% of the dose we’d like to see. Magnesium is 50% of the dose, and Zinc 50%.

There are loads of positives in this formula though. Boron, DAA, and Ashwaghanda are all good t boosting ingredients and dosed at proper levels. Similarly, Nettle Root, Fenugreek and Macuna Pruriens are all ingredients we like, and they are dosed at good levels.

The others – Trib, Maca, and Shilajit should have been dropped to increase the dosages of D3, Magnesium and Zinc.

Overall, a couple of mis-fires aside … good choices here and well thought out formula.


Even the very best boosters we’ve reviewed wouldn’t get full marks at $50 a bottle. It’s expensive. However, you get what you pay for and it’s a solid product.


There’s nothing dangerous about Sergeant Steel, it’s manufactured in line with cGMP regulations. Also they don’t use proprietary blends, opening all formula info up to the user which is great. There’s not much available about Assault Labs, so the score isn’t perfect.


This product generally has quite high star ratings but unlike Generals, boosters need more than stars to prove their quality.

When it comes to testimonials the more detail the better. Ideally you should be looking for full names of users, photos and videos, rather than stars and a brief paragraph no matter how positive.


There’s not a lot of info out there on Assault Labs and they don’t appear to have a stand alone site. This isn’t ideal but we’ve no reason to believe they are any kind of scam as the modest range of 5 or 6 supplements are carried by several online stores and we couldn’t turn up any worrying scandals.