Transparent Labs PreSeries Stim-Free was the ultimate pleasure to review. This zero-caffeine pre workout spares no expense and delivers pumps and lifts like no other.

PreSeries Stim Free

STIM-FREE is the third addition to the PreSeries pre workout line by Transparent Labs. With this pre workout, you get massive servings of key performance and muscle building ingredients that other pre workouts don’t come close to offering.

Below we will review our STIM-FREE experience as well as go over the ingredients within this powerful stimulant free pre workout and top place holder on our best caffeine free pre workouts list.

Quick Facts for Transparent Labs STIM-FREE Pre Workout

  • Huge Pump with Citrulline Malate and L-Norvaline
  • Large Clinical Doses of Proven Muscle Building Ingredients
  • 6 Grams of BCAAs in Every Serving
  • Unique Brain Support for Better Focus and Motivation
  • 3 Grams Creatine HCL for Absolute Power
  • Ideal for Men and Women
  • Effective at Half-Servings and Less

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Stim-Free Pre Workout Review

What’s In Transparent Labs PreSeries STIM-FREE?

Citrulline Malate – 6 Grams
Citrulline Malate in the 6 gram dosage is an absolute muscle pump machine. In your body, Citrulline Malate produces large quantities of L-Arginine which in turn leads to nitric oxide production. This nitric oxide production is significantly more powerful than straight Arginine supplements since in your intestines there is a high density of arginase (arginine destroying enzymes).

BCAA 2:1:1 – 6 Grams
Branch Chain Amino Acids (BCAAs) are the building blocks to your muscles. It has been found that while fasted (such as typical workout conditions), supplementing with 4+ grams of BCAAs greatly improves muscle synthesis. In addition, even smaller quantities can boost endurance and performance. A full 6 grams on the other hand, very effectively does both for even the most aggressive bodybuilders producing a perfect anabolic and fat burning environment in the body.

Beta-Alanine – 4 Grams
You never see 4 gram doses of beta-alanine in pre workouts. Typically you see 1-2 grams. However, all of the clinical research that has found beta-alanine to boost performance also recommends dosages on the ball park of 4 grams. Interesting, right? STIM-FREE contains 4 grams of beta-alanine as directed. Once in the body, Beta-Alanine is metabolized into L-carnitine which aids greatly in metabolism and promotes endurance and power.

Betaine HCL – 4 Grams
Betaine, the metabolite of Leucine is a highly anabolic particle that has been suggested to be beneficial for preserving and building lean muscle mass. Paired besides Leucine from the BCAA complex, you’re going to get a lot of this effect from STIM-FREE if you work out properly.

Creatine HCl – 3 Grams
Creatine HCl is the most water-soluble form of creatine used in bodybuilding. It dissolves roughly 250 times better than regular creatine monohydrate whilst providing the same muscular benefits. STIM-FREE includes 3 whole grams of Creatine HCL which absorbs unhindered in this stimulant free pre workout.

Taurine – 1,300 Milligrams
Taurine is an essential amino acid that plays a role in many key body functions involved in bodybuilding. It is particularly advantageous to take alongside Beta-Alanine as both compete in similar processes.

N-Acetyl L-Tyrosine – 600 Milligrams and Choline Bitartrate – 500 Milligrams
These two ingredients are amazing cognitive enhancers which produce a unique energy/clarity while working out. This effect lasts long after your gym session giving you enhanced productivity without the negative effects of stimulants.

Mucuna Puriens for L-Dopa – 70 Milligrams
This herb provides another clean energy source as well as promotes testosterone production in men.

L-Norvaline – 60 Milligrams
L-Norvaline is very effective at preserving nitric oxides activity in the body, thus preserving your pump for longer periods of time.

Our Experience Taking STIM-FREE

In the gym, STIM-FREE is an amazing experience. It takes a moment to kick in since it’s such a large formula, but once it does you feel the power. There aren’t any stimulants in this pre workout, but the cognitive blend does give an energy sensation that will keep you going. This is something that kicks in after the first 5-10 minutes of heavy lifting.

From there, it only gets better. The pump is so powerful in this pre workout with the combination of Citrulline Malate and L-Norvaline. Pair this up with all the BCAAs, Beta-alanine, and Betaine in this supplement and your lifting for hours. Seriously.

This is the only stimulant free pre workout that our staff actually looks forward to taking. For the performance benefits in the gym and overall physical benefits of course, since this stuff tastes a little harsh. Overall though, it is pure brilliance compared to other caffeine free pre workouts.

Final Thoughts for PreSeries STIM-FREE

This is our go-to pre workout for caffeine free days. There is no alternative. It doesn’t taste good, but the performance and gains feel good – and that’s what counts. This pre workout can be taken by both men and women, for building up or burning fat. Either way it’s very effective. Rarely do we recommend a pre workout so strongly, but the whole PreSeries line is well crafted and simply works well.

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