Transparent Labs Stim-Free Pre Workout Review

By: Rob Miller
Fact Checked On: 8-22-2016

Home » Pre Workout » Transparent Labs Stim-Free Pre Workout Review

Note: This is just a review. Click Here to visit the official Transparent Labs website.

As an avid supplements tester, I’m no stranger to pre-workout supplements. Over the years, I’d say that I’ve probably tested well over 100 different pre workout pills and powders.

Some work great, but others? Not so much.

One thing is for sure, the VAST majority of pre workout supplements that I’ve tested have had some sort of stimulant to get you going.

After all, isn’t that the point of a pre-workout? To get you fired up for your workout.

Well, in this review, were going to be talking about one of the very few stimulant free pre workout supplements that I recently got a chance to try out.

It’s called Pre Series Stim-Free pre workout, and I have to admit, it’s literally the BEST stimulant-free pre workout I’ve ever tested.

What is it?

As the name implies, the Pre Series pre workout powder is a supplement designed to fire up your motivation for a workout.

While the majority of pre workout supplements contain loads of caffeine, yohimbe, and / or synephrine, Transparent Labs (the makers of the product) take a completely different approach.

They use a proprietary blend of ingredients that enhance focus and endurance, motivation, and help you power through your workouts.

The full ingredients list in Pre Series pre workout includes: Citruline Malate 2:1, BCAA 2:1, Beta-Alanine, Creatine HCL, Beta-pure, Taurine, N-Acetyl L-Tyrosine, Choline Bitartrate, Mucuna Pruriens, L-Norvaline, and Bioperine.

Here’s a quick pic of the label:

pre series stim free pre workout label

As you can see, there’s NO caffeine in this supplement. This is what separates them from the rest. Most pre-workouts are just fancy packaging for caffeine-loaded powder.

Frequently Asked Questions

How do I take it?

The directions on the label state that you should take a 1/2 scoop 20 – 30 min. prior to your workout. It’s suggested that you “wait it out” to determine your tolerance.

If you don’t seem to be feeling anything after 30 min. or so, take another 1/2 scoop and wait another 20 – 30 min.

I would suggest that you take it on a relatively empty stomach to get the best results.

How long does it take to “kick in”?

For me, it took about a full hour for it to kick in, and that was with a full scoop. Everyone will respond at different times, and it depends on a number of factors like your metabolism, your weight, how much food you have in your stomach, etc.

What are it’s effects?

See my personal results here.

Are there any side effects?

Since it contains Beta-Alanine, there’s a SLIGHT chance that you may experience a harmless tingling sensation.


This is completely normal, and happens to nearly everyone that take a supplement with Beta-Alanine in it for the first time.

Generally speaking it takes about 15 – 20 min. for the tingling sensation to go away, and it’s been clinically studied and proved SAFE for human consumption.

My Personal Results

I got a tub of the Pre-Series pre workout sent to me by one of the owners of the brand, but I was NOT paid in any way, shape, or form to publish this review.

Following the suggestions on the label, I took a half scoop about 1 hour before my workout and mixed it with water.

pre series stim free pre workout reviewI have to say, the taste was actually VERY good. I got the green apple flavor (they have blue raspberry as well, but I’ve never been a fan), and it had kind of a “tarty-tangy” flavor, comparable to a starburst.

For the first 15 min., I didn’t feel much. Right around the 20 min. mark, I started to get that tingling sensation I talked about above.

Again, this is completely normal with Beta-Alanine, and it goes away pretty fast.

I decided to round out another 1/2 scoop and drink it on the 15 min. drive to the Golds Gym I go to. Just as I pulled in I could feel the SURGE of energy that you get with most stimulant based pre workout supplements.

HOWEVER, I didn’t get that heart-racing / sweaty / jittery sensation you get with so many other pre workouts.

It was just a nice, CLEAN, “I’m ready to get it on!” type of feeling.

What followed was one of the BEST workouts I had in a long time!

I did a FULL leg lifting session, AND finished it off with a 30 min. High Intensity Interval Training cardio run.

I have to admit, I felt completely WIPED after that workout, but actually felt “proud” at how much I accomplished.

You know that feeling you get when you had a SERIOUSLY good workout?

Yeah, it was like that!

Where Can I Buy It?

You can buy the Pre Series pre workout on their official site,

A 30-serving tub will run you $49, placing it in the moderately-priced category.

If you buy larger quantity’s (which you’ll want to do when you try it out for the first time), you actually save a bit of money.

A 2 tub order will shave off $9, pricing it out at $89, and if you buy 3 tubs you’ll get an even bigger discount.

As of this review they do NOT sell it in stores like GNC, Vitamin Shoppe, or any of the other major retailers.


If you’re someone who is prone to getting side effects from stimulant-based pre workout supplements, then the Pre Series Stim-Free pre workout is PERFECT for you.

It doesn’t cause any jitters or awful come-down, and it works GREAT to enhance motivation, focus, and endurance for your workouts.

Given the fact that it’s one of the ONLY stimulant-free pre workout supplements I’ve tried that ACTUALLY works, I highly recommend it!

Have You Used Pre Series Pre-Workout? Leave Your Review Below!

Top 3 Pre WorkoutAffiliate Disclosure

#1 – 4 Gauge

#1 - 4 Gauge

4 Gauge is a brand new pre workout that kicks in FAST and will rev up your workouts.

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#2 – Nitrocut

#2 - Nitrocut

Nitrocut is a VERY effective pre workout supplement for a variety of reasons, see why here.

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#3 – Stim Free

#3 - Stim Free

If you’re looking for a stim-free pre workout, add Transparent stim-free to your list!

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Author: Rob Miller

Supplement Critique

Rob Miller founded over 7 years ago, and has been the chief editor ever since. He has a diploma in Advanced Dietary Supplements Advisor, and worked at GNC for 3 years. He KNOWS supplements, both inside and out. Rob currently resides in Jupiter, FL, with his wife of 4 years.  Learn more about him in his Bio here. Follow him on Twitter , Facebook, LinkedIn, or find him on Google +.

4 comments on “Transparent Labs Stim-Free Pre Workout Review”

Leave A New Comment

  1. I do not know why this comes up again. I repeat: I do not want you to send me another bottle BIO MUSCLE XR.

    NEW BOTTLES WILL BE RETURNED. I will not pay any money as I did not order BIO MUSCLE XR.

    1. Hey JAN G C,
  is a review website. We don’t have any affiliation with this product, so you’ll have to contact the company you made your purchase from to cancel your order or billing.


  2. Discontinue sending any bottles. I did not order the bio muscle XR and will not use it.

    I am 92 years old and have no use for this stuff.Sincerely, Jan
    1. Hey JAN G C VAN DE LINDE,
  is a review website. We don’t have any affiliation with this product, so you’ll have to contact the company you made your purchase from to cancel your order or billing.


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