Transparent Labs Lean vs Bulk – A Detailed Comparison

It's daunting to choose the best pre-workout powder when there are countless options on the market. Still, you can rest easy knowing that Transparent Labs offers a collection of evidence-based pre-workout formulas for gym-goers, athletes and bodybuilders looking to take their performance and results to the next level.

If you're new to TL supplements and curious about what differs between Transparent Labs LEAN vs. BULK Pre-workout formulas, this article will answer all your questions! Read on as we break down these pre-workout supplements and how they work.  

Comparing and Contrasting Transparent Labs Bulk vs. Lean Pre-Workout

Let's first cover what the LEAN and BULK formulas have in common. These pre-workouts share a core of "bread-and-butter" ergogenic ingredients, like citrulline, beta-alanine, betaine anhydrous, organic caffeine, and L-theanine.

BULK separates itself as more of a "bulking" pre-workout formula since it contains an extra 2 grams of L-citrulline and beta-alanine (each), plus an extra 1.5 grams of betaine, compared to LEAN. It also contains 300 mg of AlphaSize®, which has been shown to increase growth hormone production in athletes, ultimately contributing to IGF-1 increase after training (and muscle growth)[1]. Lastly, it has 3 mg of boron to support natural testosterone production [2].

LEAN is more of a cutting formula by virtue of thermogenic ingredients like acetyl-L-carnitine (ALCAR), Chromax® chromium, selenium, and iodine. The ALCAR in LEAN helps promote fat metabolism in mitochondria, which is ideal before exercising since it's a prime opportunity for fat to be used as energy. Chromax® has been shown in clinical studies to reduce body weight/improve body composition by increasing insulin sensitivity and controlling hunger. At the same time, selenium and iodine are well-known thyroid-supporting minerals (and thyroid hormones play a major role in metabolic rate).

Now that you have a better sense of how these formulas compare, the following sections provide more in-depth highlights of each product.

Transparent Labs BULK Pre-Workout

BULK is the "OG" Transparent Labs pre-workout powder designed with strength athletes and dedicated gym-goers in mind. Each serving (1 scoop) of this pre-workout formula comes fully loaded with evidence-based ingredients in clinical doses, including:

BULK set the trend for clinically dosed pre-workout supplements with a whopping 17+ grams of active ingredients in each serving (nearly four times more than most pre-workouts contain). Like all Transparent Labs supplements, BULK is free from proprietary blends and lists the specific amounts of each active ingredient. 

BULK PRE-WORKOUT FORMULA HIGHLIGHTS:

• The original powerhouse Transparent Labs pre-workout powder for athletes, bodybuilders, and gym-goers looking to build lean muscle mass. 

• Over 17 grams of active ingredients in each scoop.

• Formulated with a comprehensive profile of nitric-oxide boosters and muscle-volumizing ingredients to enhance blood flow, strength, and stamina. 

• Ample doses of PurCaf® natural caffeine and AlphaSize® alpha-GPC for lasting mental acuity and clean energy—no crashing or jitters.

• Natural flavoring, no artificial coloring, and sweetened with stevia. 

• No added sugars.

• Comes in multiple refreshing fruit flavors that you'll actually look forward to drinking.

Transparent Labs BULK BLACK Advanced Pre-Workout Formula

BULK BLACK is a "hardcore" iteration of the original BULK Pre-Workout formula, providing a high-performance edge that takes mental and physical performance up a notch. This advanced pre-workout is ideal for those with a higher caffeine tolerance. Each serving contains:

If you're looking for a harder-hitting pre-workout that doesn't break the bank, BULK BLACK contains effective doses of cutting-edge ingredients that go to work starting from the very first dose. 

BULK BLACK FORMULA HIGHLIGHTS:

• Advanced nootropic ingredients for enhanced mental clarity, improved mood, and limitless energy 

• Robust blend of NO-boosters for intense muscle pumps

• Fatigue-fighting nutrients that bolster strength and power throughout your workout.

• Natural flavoring, no artificial coloring, and sweetened with stevia. 

• No added sugars.

• Choose from unique flavors like sour gummy worms and black cherry.

Transparent Labs LEAN: Thermogenic Pre-Workout Supplement

Transparent Labs LEAN Pre-Workout is a favorite among athletes and gym-goers looking to cut body fat and excel in the trenches. This formula features clinical doses of evidence-based thermogenic ingredients and other nutrients that promote blood flow, strength, endurance, and focus.

LEAN Pre-Workout kills two birds with one stone by augmenting athletic performance and facilitating fat loss when pumping iron and doing cardio. 

Every scoop/serving of LEAN Pre-Workout contains:

A critical distinction of this formula from BULK is the inclusion of ALCAR, a bioavailable form of L-carnitine that helps shuttle triglycerides (fat) into mitochondria so they can be burned for energy. ALCAR is also a potent neuroprotective agent that provides synergy with caffeine, L-theanine, and theobromine.

LEAN PRE-WORKOUT SUPPLEMENT HIGHLIGHTS:

• Advanced thermogenic pre-workout that ignites fat-burning pathways while increasing athletic performance 

• Increase blood flow, endurance, strength, and energy

• Improve focus, mood, and concentration 

• Ideal for active individuals who are trying to cut body fat and preserve as much muscle as possible

• Natural flavoring, no artificial coloring, and sweetened with stevia. 

• No added sugars.

• Comes in multiple taste-bud-friendly flavors

Choose the Pre-Workout That Suits Your Goals

There's a reason top athletes and physique competitors trust formulas like BULK and LEAN to deliver. While considering all of the above, it's important to note that your diet plays the biggest role in determining whether you'll lose fat or gain muscle tissue.

The LEAN and BULK Pre-Workout formulas are not intended to replace a proper weight-loss/muscle-building diet, but they are intended to help you perform your best every time you work out. Choose the formula that aligns with your fitness goals, and then make it happen!