Transparent Labs Preseries Lean Review

As the name suggests, Transparent Labs are all about creating clean, reliable and completely natural supplements you can rely on – which sounds like it’ll be fantastic for women. To find out more about whether this hugely popular product is appropriate for females, we’ve performed a Transparent Labs Preseries Lean review. 

According to the website, this pre-workout was created with the intention of supporting people who are focussed on keeping their calories in control, whilst improving their workouts.

As a weight loss focused formula, we thought this might be a good choice for women.

After a thorough review of the supplement, we found it to be one of the best out there for women. Buy it by clicking the button below or read on to find out why we rated it so highly.

Buy it Securely on the Transparent Labs Website

At the official Transparent Labs site 

To find out why we like this supplement so much, we looked into the Transparent Labs Lean Pre-Workout formula in detail. We’ compared the ingredient list to the latest research to find out just how good this product is.

Read on to find out more about this product in our Transparent Labs Preseries Lean review.

Transparent Labs Preseries Lean Pre-Workout Ingredients

Both the performance boosting and the weight loss claims of PreSeries Lean Pre-Workout all come back to the formula.

At a glance, we’re happy to see some strong serving sizes, a completely natural profile and no proprietary blends. This ticks a number of boxes for us, both in terms of effectiveness and safety.

Let’s take a look at the main ingredients to find out more.

  • Citrulline Malate 2:1 – Extracted from watermelons, this is a proven vasodilator which can help to delay the point of fatigue in a workout [1]. It may also promote recovery by helping the body utilize leucine [2]. PreSeries Lean Pre-Workout offers 6000mg, which is inline with research into it’s endurance enhancing properties [3].
  • BetaPure – This is a concentrated form of Beta Anhydrous, which has been shown to delay fatigue during weight training [4], and lead to more repetitions in a set [5].
  • L-Theanine – This amino acid is a favorite in nootropics due to it’s ability to reduce stress [6]. It’s often paired with caffeine to reduce the chance of jitters and create a sense of alert calm [7].
  • Caffeine Anhydrous – Caffeine has been proven to boost physical performance on several occasions. One study found a serving of between 150-200mg was optimal for improving results in resistance training [8]. This may also contribute to weight loss, as the thermogenic elements of caffeine have been shown to heighten metabolism by around 11% [9]. This is a smaller serving than many pre-workouts, but it’s much more appropriate for women and research shows that too much caffeine can negatively impact thermoregulation [10].
  • Beta-Alanine – This has been shown to reduce muscular fatigue in both men and women during intense exercise [11]. It’s also been proven to help promote lean mass over fat in athletes [12].This ingredient may cause tingling feelings in your arms and legs. This is completely natural and safe, don’t worry [13].
  • N-Acetyl L-Tyrosine – This is another common ingredient in nootropics, and has been shown to increase mental focus and endurance [14].

Note: This supplement offers some of the most well-known and highly researched ingredients on the market right now. While it is a strong formula that provides both mental and physical support, it doesn’t have much in the way of fat loss support.

Find Out More At Transparent Labs

At the official Transparent Labs site


Preseries lean pre-workout ingredients

Is Transparent Labs Lean Pre-Workout good for women?

Women react to supplements in different ways to men, and therefore we need to ensure this supplement is suitable to women.

Transparent Labs also offer a pre-workout formula called BULK pre-workout in their Preseries. We think, out of the two, the Lean option if far more effective for women.

Based on this formula, we think it could be appropriate in the following ways.

  • No energy crashes

The combination of both l-theanine and caffeine should create a smooth lift, that doesn’t leave you jittery or feeling unwell.

  • Good stimulant levels

PreSeries Lean Pre-Workout also offers a reasonable level of caffeine anhydrous, which should also protect against any potential negative side effects. This is especially important for women, as research has shown we are more likely to experience uncomfortable side effects of caffeine than men [15].

  • May promote weight loss

The use of the thermogenic ingredient caffeine anhydrous may help to promote thermogenesis in this formula. However, the overall performance enhancing elements of this supplement in relation to resistance training and highly intense exercise could be more beneficial to a weight loss attempt when paired with a calorie restricted diet.

[Related Article: Powher Up Pre-Workout Review

Transparent Labs Lean Pre-Workout effectiveness

While looking at the ingredient list is a good place to start when trying to understand how Transparent Labs Lean Pre-Workout could work, it doesn’t tell us how effective the supplement is.

To find out more about that, we need to look into the ingredient servings in comparison to the available research. This is a key part of our Transparent Labs Preseries Lean review, as it gives the best idea of what you may feel when taking it.

Our first indication of the effectiveness came from the serving size of Transparent Labs Lean Pre-Workout. One scoop equates to 16.24g of the supplement, which is more than half again of many other pre-workouts, where 10g is the norm.

This can help to increase the servings sizes of ingredients within the mix.

For example, the 6000mg serving of l-citrulline has been proven to enhance endurance for athletes, which means PreSeries Lean Pre-Workout offers the optimal amount.

Similarly, we know that 180mg of caffeine anhydrous is deemed both reasonable in terms of safety, and effective when it comes to enhancing physical performance in a workout.

It also offers one of the highest servings of beta alanine we’ve seen in a pre-workout supplement, which may make it more effective than other, similar products.

BetaPure provides both quality and quantity. It’s a more concentrated version of betaine anhydrous which comes with clinical backing for fatigue reduction. On top of that, the serving is very high, making it a strong component of this formula.

All of these are main ingredients within the Transparent Labs Lean Pre-Workout profile, and they’ve been served and very generous levels, which should increase their effectiveness within the formula.

The addition of chromium at 200mcg and thyroid support vitamins at 156.5mg shouldn’t make much of a difference as they’re served at small levels.

However, we believe that the majority of women looking to buy this pre-workout are more concerned about the performance-boosting elements of this supplement than the thyroid support.

Find Out More at Transparent Labs

How to take Transparent Labs Lean Pre-Workout

To begin with, the manufacturers recommend you take half a scoop of the powder and mix with 6-8 fl .oz of water. Shake well and drink around 20-30 minutes before you begin training. This allows you to test your tolerance to the ingredients within the formula.

Once you’ve got a feel for the stimulant and beta alanine effects, you can go up to one full scoop with 12-16 fl .oz of water in a shake.

Due to the caffeine in the formula, we recommend you take this supplement no later than 5 hours before you usually go to bed. Otherwise the stimulant could interfere with your ability to fall to sleep.

[Related Article: 5 Pre-Workout Side Effects and How to Avoid Them

Lean Pre-Workout Flavors

This supplement comes in a range of refreshing flavors, which give you the option to choose one that suits you.

PreSeries Lean Pre-Workout Flavors:

  • Green Apple
  • Strawberry Lemonade
  • Blue Raspberry
  • Sour Grape
  • Orange

Preseries Lean Pre-Workout Price

One bag of PreSeries Lean Pre-Workout provides you with 30 servings of the supplement.

  • One bag: $49 / £39.59
  • Two bags: $89 / £71.91
  • Three bags: $119 / £96.15

The creators of this supplement offer a discount if you buy more bags at a time. While this may seem like a large upfront cost, it could actually save you money in the long run – especially if this becomes your go-to pre-workout supplement.

You can also order different flavors for each bag when you select the multi-buy option, so you can enjoy variety too.

[Related Article: 5 Best Fat Burners for Women


  • Natural formula
  • Suitable for women
  • Low risk factor
  • Reasonable caffeine levels
  • Well-researched ingredients
  • Generous serving sizes


  • Formula may not promote fat loss
  • Not the cheapest supplement

Transparent Labs Preseries Lean review – Our final thoughts

Overall, we believe Transparent Labs Lean pre-workout delivers on quality.

It provides well-researched supplements at high serving sizes that should help to boost your workouts.

Our Transparent Labs Preseries Lean review also found it suits to women very well, thanks to a responsible approach to caffeine levels.

In terms of promoting a lean physique and fat loss, we didn’t see much in the way of support. However, by increasing your ability to work hard in your workouts, you should see this as a result anyway, as long as you enjoy a health calorie-controlled diet.

Price may be a sticking point for some. While it’s not the cheapest supplement on the market, it’s also not the most expensive. Having said that, we believe the formula may warrant a higher price when you consider what you get for your money. Therefore, after a full Lean pre-workout review, we think it’s good value.

As a pre-workout supplement for women, Transparent Labs Preseries Lean Pre-Workout ticks all our boxes.

Shop PreSeries Lean Pre-Workout


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gymgirlfit was created by health and fitness enthusiasts, with backgrounds in powerlifting and writing. We've written for a number of well-known fitness publishing companies.

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