1-DB Overdrive Review


  • Contains some tested thermogenics such as Cayenne Pepper Extract
  • Coleus Forskohlii is one of the more exciting advancements found in fat burners


  • All ingredients are part of 3 big proprietary blends
  • This means that you dont know the exact dosage of caffeine (increased risk of jittery side effects)
  • Synephrine has become known as a potentially harmful ingredient
  • There are better options on the market, in our honest opinion

See Your Top Options In Our
» Best Fat Burners Page «


About the Product: 1-DB Overdrive

1-DB Overdrive is a fat burner supplement made by 1st Phorm. Clearly, due to it being a fat burner, its designed to encourage your body to burn more fat - being named an advanced fat loss acceleration system.

1st Phorm have gained a great reputation in the industry for their potent formulas. This usually attracts those that enjoy big caffeine servings to ramp up their energy levels.

From first glance, we see some positives about 1-DB Overdrive when looking at its nutrient profile. Were big fans of both Cayenne Pepper Extract, as well as Coleus Forskohlii; these are 2 of the most tried-and-tested thermogenic ingredients you can find in any fat burner supplement.

However, you simply cant ignore the fact that all ingredients are part of 3 different proprietary blends

What are proprietary blends?

Well, they are mixtures of numerous different ingredients that are presented to you under a (typically) fancy name.

In the case of 1-DB Overdrive, you can spot the 3 proprietary blends that are titled: GSD Complex, BioTherm, and Balance Blend.

So whats so bad about them?

The answer to the above question is that you cant see the exact dosages of the individual ingredients that are part of proprietary blends.

This can be potentially harmful when a blend contains unknown dosages of stimulants such as Caffeine Anhydrous or Synephrine (overdosing on stimulants leads to jittery side effects and energy crashes).

Anyway, instead of rambling on about 1-DB Overdrives supplement facts label in the intro here, well tell you a bit about 1st Phorm before we get stuck in.

Who are 1st Phorm?

As we mentioned, 1st Phorm have gained a positive reputation in the supplements industry. This is good news, since its an industry that can be pretty murky at times.

The target customers for 1st Phorm are definitely the bodybuilding crowd, or females that want to be fitness models. Nothing wrong with that - in fact, we fit into that category ourselves.

We also really like the fact that all 1st Phorm products are made in the USA. Guaranteeing good quality manufacturing processes are being followed.

Overall, we like 1st Phorm as a brand here at LeanBulking.com.

1-DB Overdrive Ingredients Explained

We went through our 1st opinion regarding 1-DB Overdrive in our intro above. But in this section, well be giving you the full analysis of 1-DB Overdrives Supplement Facts Label.

As mentioned, there is a lot to like about this fat burner. You cant argue with the inclusion of thermogenic nutrients such as Cayenne Pepper Extract [1] and Coleus Forskohlii Extract [2] - there are tons of clinical studies that show they work.

But, as we also mentioned, there some issues. Including stimulants such as Caffeine Anhydrous and Synephrine hiding in unknown dosages in proprietary blends.

Anyway, well take you through each ingredient in this fat burner. By the end of this review, youll have a good idea of whether youll want to try it out for yourself.

Heres everything you need to know about 1-DB Overdrive…

Supplement facts label for 1-DB Overdrive Fat Burner
The Supplement Facts Label for 1-DB Overdrive Fat Burner.

GSD Complex (374mg)

This is the 1st proprietary blend that appears on 1-DB Overdrives supplement facts label.

It contains:

  • Caffeine Anhydrous 
  • L-Theanine
  • L-Theacrine
  • Sulbutiamine
  • Synephrine 
  • CDP Choline
  • Huperzine A

Weve bolded the ingredients above that are stimulants. Meaning theyre capable of boosting your energy levels.

However, youll also know if youve ever had that one cup of coffee too much…that stimulants can cause jittery side effects and energy crashes too.

While you know that the overall dosage of the GSD Complex proprietary blend is 374mg, youre not shown the individual dosages of each ingredient contained within.

That means youre potentially at risk from overdosing on stimulants. Especially if you have a low tolerance of stimulants (Im looking at you, guys that only drink 1 cup of coffee per day or dont drink any coffee at all).

As a result, we cant recommend proprietary blends that contain stimulants in any scenario.

BioTherm 128mg

This is the second proprietary blend listed on 1-DB Overdrives supplement facts label. We believe its probably the best out of the 3, due to it containing 2 of our favorite fat burner ingredients - Cayenne Pepper Extract and Coleus Forskohlii Extract.

Here are all the ingredients found in the BioTherm proprietary blend:

  • Green Coffee Extract
  • Green Tea Extract
  • Coleus Forskohlii Extract
  • Hordinine
  • Evodiamine
  • Cayenne Pepper Extract

In fact, apart from 2 ingredients (Hordinine and Evodiamine) we actually really like every nutrient in this blend. In our personal opinion, these are great thermogenic ingredients that should help you towards your fitness goals.

The only reason we dont really like Hordinine is because its chemical structure is similar to a stimulant; its naturally found in bitter orange extract, which we personally wouldnt recommend either.

What about Evodiamine? Well, its shown to work in studies involving mice. But thats not enough to convince us (just our honest, subjective opinion). This is because other thermogenics such as Cayenne Pepper Extract have been proven to work in numerous studies that have involved human subjects.

Balance Blend 100mg

The third and final proprietary blend found in 1-DB Overdrives supplement facts label.

Its also going to pretty quick to analyze, because it only contains 2 ingredients (which isnt a bad thing at all):

  • Ashwagandha
  • Rhodiola Extract

We dont have anything bad to say about this Balance Blend at all.

Apart from the fact that its a proprietary blend (so you dont know the individual dosages of either Ashwagandha or Rhodiola Extract). These are among 2 of the safest ingredients found in this whole fat burner.

And providing they are dosed optimally, theyll be beneficial too. Not for fat burning, though.


Well, Ashwagandha is known for its ability to improve strength and benefit you in testosterone boosters. While Rhodiola Extract is a nootropic ingredient; meaning its able to improve your cognition (help you perform better mentally).

Not a bad way to finish up the analysis of 1-DB Overdrives ingredients. Good job by 1st Phorm with this Balance Blend.

1st-Phorm-1-DB-Overdrive-ReviewSee your Top Options in our
» Best Fat Burners Page «

1-DB Overdrive Potential Side Effects

Weve mentioned (probably) a hundred times in this review that 1-DB Overdrive contains proprietary blends.

For those that skimmed our whole review of this fat burner and came straight to this section…

You simply dont know the individual dosages of ingredients that are part of proprietary blends - which becomes an issue when a blend contains stimulants such as Caffeine Anhydrous and Synephrine (which 1-DB Overdrive does).

As a result of consuming unknown dosages of stimulants, you might be at risk from:

  • Jitters
  • Energy Crashes
  • Insomnia (if taken late at night)

Of course, everyone is different so no-one can say for sure whether any fat burner will cause side effects.

1-DB Overdrive Review Conclusion

Overall, 1-DB Overdrive isnt the worst fat burner weve reviewed on this site. Far from it - its actually not bad and its certainly a lot better than some products weve seen out there.

We respect that 1st Phorm have conducted research before formulating 1-DB Overdrive; this has led to the inclusion of cutting edge fat burner nutrients being included, such as Coleus Forskohlii (which is still fairly new to the world of fat burners compared to other ingredients that have been around for decades).

We also like that there are many tried-and-tested thermogenic nutrients such as Cayenne Pepper Extract and Green Tea Extract included in 1-DB Overdrives supplement facts label.

However, we just cant ignore the fact that every ingredient is part of a proprietary blend. And that there are 3 stimulants in a single proprietary blend - meaning youre consuming unknown dosages of 3 stimulants at once (which could cause those with a lower tolerance to caffeine some issues, in our honest opinion).

As a result, we dont think that it beats our Best Fat Burners ranked this year. Still, its certainly a respectable addition to 1st Phorms line up.

1-DB Overdrive Review: Bottom Line

If youre a fan of 1st Phorm and want to try their fat burner after liking their other supplements, then we certainly wont stop you.

After all, this isnt going to guarantee side effects and it does contain some good fat burning ingredients.

However, at a price of $69.99 (listed on 1st Phorms website), we believe that there are better options out there - you can check at least 3 out in our Best Fat Burners page, here.



[1] Zheng, J. Dietary capsaicin and its anti-obesity potency: from mechanism to clinical implications. Biosci Rep. 2017 Jun 30; 37(3): BSR20170286.

[2] Loftus, H. Coleus forskohlii Extract Supplementation in Conjunction with a Hypocaloric Diet Reduces the Risk Factors of Metabolic Syndrome in Overweight and Obese Subjects: A Randomized Controlled Trial. Nutrients. 2015 Nov; 7(11): 9508-9522.

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