Transparent Labs Bulk Pre-Workout Review

Contents
- Manufacturer - Transparent Labs
- Transparent Labs Bulk Pre-Workout Overview
- Main Features
- Nutritional Profile & Ingredients
- Benefits & Effectiveness
- Caffeine Anhydrous (180mg)
- Beta Alanine (4000mg)
- Vitamin D3 (3000 IU)
- Taurine (1300mg)
- Synephrine (50mg)
- Mucuna Pruriens (70mg)
- Flavor, Mixability and Consistency
- Side Effects
- Price and Buying Options
- Alternatives
- Pre Jym
- Cellucor C4
- Beyond Raw LIT Pre-Workout
- Pros and Cons
- Pros:
- Cons:
- Conclusion
- Sources
Many pre-workouts are designed to help you build muscle as well as increase energy and focus, but if you are not getting the results you want, you should think about trying a pre-workout that is specifically designed for bulking up.
Transparent Labs Bulk Pre-Workout adds a "testosterone support" blend and is fully transparent about the ingredients and doses it uses.
It gets better:
Because there are no proprietary blends, you can see exactly how much of each ingredient you get. That makes it easier to judge what is likely to help and what is not.
In this Transparent Labs Pre-Series Bulk review, we’ll take a closer look at the product and why you should consider it.
Manufacturer - Transparent Labs
Transparent Labs have released a pre-series of pre-workouts and each product is designed for a specific purpose. As well as Bulk they have a Lean and Stim-Free pre-workout, so there’s one to suit different tastes and workout physique goals.
They also offer products from a range of other series’ including their protein series and wellness series.
The company strives for 100% transparency on all their products, meaning you know exactly what you are putting into your body.
This is always a benefit in terms of supplements and pre-workouts as, not only do you want to know that the ingredients are healthy, but you want to make sure all those ingredients are included in clinically effective dosages.
In this Transparent Labs Bulk Review, we’ll take a closer look at their science-based ingredients.
Transparent Labs Bulk Pre-Workout Overview
Several of the main ingredients in Transparent Labs Bulk, such as citrulline malate, beta-alanine and caffeine, are used at doses that match published research.
What's more, it contains no artificial sweeteners, colors or flavors.
The "testosterone support complex" is made up of vitamin D3, boron and zinc. These nutrients matter for health, but they only tend to affect testosterone if you are deficient; they are not a shortcut to more muscle.
Check the price of Transparent Labs BULK
The active ingredients are aimed at energy, focus and fatigue. It is also vegan-friendly and contains fermented vegan BCAAs.
It also has less caffeine than many pre-workouts on the market, so it is less likely to overstimulate you.
Main Features
- Moderate caffeine dose
- Key ingredients at research-backed doses
- No artificial colours, sweeteners or flavours
- Vegan-friendly
- 4 different flavours
Nutritional Profile & Ingredients
This Pre-series Bulk review gives a full rundown of ingredients so you can see exactly what you’ll be getting before you buy it. Of course, this is made easy by the full transparency of the manufacturers about their ingredients.
Compared to other pre-workouts, which often rely heavily on stimulants, Bulk contains 180 mg of caffeine, about the amount in two cups of brewed coffee.
It contains the BCAAs leucine, isoleucine and valine in a 2:1:1 ratio. BCAAs help trigger muscle protein synthesis, but if you already eat enough protein, the extra benefit is small.
It also includes synephrine, the main compound in bitter orange. The NIH says the effects of bitter orange on body weight are unclear, and serious heart problems have been reported in people taking bitter orange products, usually in multi-ingredient formulas.
View the full list of ingredients here:
- Citrulline Malate (6000mg)
- Beta-Alanine (4000mg)
- BCAA 2:1:1 (4000mg)
- Betaine Anhydrous (2500mg)
- Taurine (1300mg)
- N-Acetyl L-Tyrosine (600mg)
- Choline Bitartrate (500mg)
- L-Theanine (360mg)
- Caffeine Anhydrous (180mg)
- Mucuna Pruriens (70mg)
- L-Norvaline (60mg)
- Synephrine (50mg)
- Hordenine (25mg)
- BioPerine (5mg)
- Vitamin D3 (3000 IU)
- Boron (5mg)
- Zinc (30mg)
Benefits & Effectiveness
With such an extensive list of ingredients, you know that Transparent Labs Pre-Series Bulk has nothing to hide. In this review, we will take a look at the key significant ingredients and what they add to the product.
Caffeine Anhydrous (180mg)
Caffeine is the main stimulant in most pre-workouts. It can increase reps and delay fatigue, and it improves alertness and focus.
Caffeine anhydrous is a concentrated caffeine powder which is designed specifically to aid athletic performance. With 180 mg per serving, it is well under the FDA's 400 mg daily reference amount for healthy adults, unlike pre-workouts that pack 300 mg or more. But if you’re looking for something even lower than that of Transparent Labs Pre-series Bulk, I suggest you check out 4 Gauge.
Beta Alanine (4000mg)
Beta-alanine is a non-essential amino acid your body uses to make carnosine. Pre-Series Bulk has a solid 4,000 mg per serving, while some pre-workouts use as little as 2,000 mg.

Carnosine helps buffer acid in your muscles during hard exercise. Taking about 4 to 6 g of beta-alanine daily for several weeks raises carnosine levels and can improve performance in intense efforts lasting about one to four minutes. Effects on strength are less clear.
It can cause a harmless tingling feeling.
Vitamin D3 (3000 IU)
Vitamin D3 makes up part of the testosterone support in this pre-workout. This fat-soluble vitamin helps your body absorb calcium for strong bones.
If you already take a vitamin D supplement, count this 3,000 IU toward your daily total, since too much vitamin D over time can be harmful.
Taurine (1300mg)
Taurine is an amino acid your body makes on its own, and it is common in pre-workouts and energy drinks.
It is often marketed to smooth out caffeine jitters and reduce soreness, but the evidence for those effects is limited.
Synephrine (50mg)
The stimulant synephrine comes from bitter orange. It is marketed for fat burning, but evidence for weight loss is unclear, and some studies found it raised heart rate and blood pressure.

If you have high blood pressure or a heart condition, or take medications that affect them, check with your doctor before using a product with synephrine.
Mucuna Pruriens (70mg)
This legume is an unusual addition. Mucuna Pruriens naturally contains L-dopa, a precursor to dopamine.
Claims that it lowers cortisol or raises testosterone come from small studies, and there is no good evidence it boosts muscle growth. If you take medication for Parkinson's disease or depression, ask your doctor before using it.
Flavor, Mixability and Consistency
Transparent Lab Bulk Pre-Workout comes in four different flavours; Blue Raspberry, Green Apple, Strawberry Lemonade, and Sour Grape.
As this product doesn’t contain any artificial sweeteners, the taste hasn’t been a winner for all customers.

Some have found that when mixed well with water, it creates a smooth and refreshing pre-workout whereas others have argued that the taste just isn’t right without some sort of sweetener.
If you are concerned about artificial additives and clean living, this is definitely a plus, but if you’re looking for the usual super sweet pre-workout, Bulk Pre-Workout might not be the option for you.
The powder mixes well when combined with two glasses of water. It might leave some excess foam at the top but this is much better than sediment at the bottom. With a decent amount of water, the mix is pleasant and not grainy.
Side Effects
As with all pre-workouts, you have to be aware of the ingredients and potential side effects.
Transparent Labs clearly state what they put in their products so you can take this into account before you buy any of their pre-workouts.
Possible side effects when taking pre-workout supplements include nausea, stomach pain, tingling, jitteriness and headaches.
The lower caffeine dose in Pre-Series Bulk makes jitters less likely than with some other pre-workouts, like Legion Pulse. It does contain other stimulants, synephrine and hordenine, so start with a half serving.
Stick to the label serving size, and avoid it if you are pregnant or nursing, under 18, or have heart problems or high blood pressure.
Price and Buying Options
Transparent Labs Pre-series Bulk is available exclusively on the Transparent Labs website.
Here you can browse a number of other products including protein powders and weight loss supplements, depending on what you are looking to achieve in your workout.
Pre-Series Bulk comes in a bag instead of a container. You can buy one, two or three bags in the same order, depending on whether you just want to try it or you want to save money by buying more in one go.
Each bag contains 30 servings. At the time of our review, one bag was $49 USD ($1.63 per serving), and three bags were $119 USD ($1.32 per serving). Check the site for current pricing.
You also get all four flavour options on the site.
Alternatives
In this Transparent Labs Pre-Series Bulk Review, we want to give you an idea of the competition. Here we have found some cheaper and comparable options, like the Pre-Kaged which we have included in another article, so you can see what else you can get for your money and make an informed decision about Transparent Labs Bulk Pre-Workout.
Pre Jym
For a comparable price of $1.60 USD per serving for a 30 serving container, Pre Jym is another option if you are looking for total transparency in ingredients. Pre Jym is also backed by science and includes essential ingredients at optimum levels.
It contains a higher dosage of caffeine at 300mg so if you are looking for a hefty energy boost to get you going, this is a great option.
However, if you are sensitive to caffeine this might be far too much for you as it is equivalent to 3 cups of coffee. Check out our Pre Jym review for more information.
Cellucor C4
For anyone who isn’t looking to spend so much on a pre-workout, Cellucor C4 is a popular option. A 30 serving container of C4 works out to just about $1 USD per serving.
This cheaper option contains a ‘Explosive Energy Blend’ which, as with all proprietary blends, means you don’t know exactly how much of each ingredient you are getting.
So, for a cheaper price, you might not be getting the same quality ingredients at clinically effective dosages as you do with Transparent Labs.
C4 also does not include BCAAs so if you want the added benefits of a BCAA powder, you will have to buy one separately.
Beyond Raw LIT Pre-Workout
Slightly cheaper than Transparent Labs Bulk and still containing high quality ingredients, Beyond Raw LIT Pre-Workout makes for an interesting comparison. This pre-workout is currently available for just $1.20 USD per serving for a 30 serving container.
There are no proprietary blends here so you know exactly what you are getting like with Transparent Labs. Beyond Raw LIT Pre-Workout is designed to give you a noticeable energy boost but contains slightly less caffeine than Pre Jym with 250mg.
Unlike Transparent Labs Bulk, this pre-workout does contain artificial sweeteners, like sucralose, which make the taste more pleasing but might be a downside if you don’t like to consume artificial additives. If you are interested in finding out more about Beyond Raw LIT, check out our full review.
Pros and Cons
Pros:
- Improves energy and focus
- Research-backed doses of key ingredients and no proprietary blends
- No artificial colours, sweeteners or flavours
- Not high in stimulants Includes BCAAs
Cons:
- Does not include creatine
- "Testosterone support" claims are not well supported
- Contains synephrine, which some people should avoid
- Requires more water to mix well
- Not as tasty as other options since it isn’t artificially sweetened
Conclusion
All in all, Transparent Labs Bulk Pre-Workout is a solid, moderately caffeinated option with a fully disclosed label.
It is pricey, but its main performance ingredients (citrulline malate, beta-alanine and caffeine) are dosed in line with research. The testosterone support and BCAAs add little for most people who eat enough protein and get enough vitamin D and zinc.
Check the price of Transparent Labs BULK
Most importantly, you know exactly what you are getting with this product thanks to the company’s transparency. Give it a try from the official Transparent Labs website here and see what you think for yourself.
Sources
- Bitter Orange: Usefulness and Safety, National Center for Complementary and Integrative Health
- International society of sports nutrition position stand: Beta-Alanine, Journal of the International Society of Sports Nutrition
- Spilling the Beans: How Much Caffeine is Too Much?, U.S. Food and Drug Administration


