MaxiMuscle Promax Lean Reviews – Does It Have Any Side Effects?

The Maximuscle Promax Diet promotes weight loss by incorporating proteins, carbohydrates, healthy fats, and fiber. Additionally, this specialized mix helps to increase muscle tone and shape.

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In This Review

MaxiMuscle Promax Lean – Overview

Promax Lean is a protein-enriched shake formulated to support lean muscle definition. It is an all-in-one shake that supplies the body with a high amount of protein without exceeding in caloric delivery. It was designed to give users the required nutrition that will support lean muscle growth.

The formula contains a blend of BioMAX whey proteins and other important ingredients that can be included in your balanced nutrition routine to help you achieve your goals when training. The brand behind this product is actually very well-known in the sports industry.

Promox Lean is certainly not the cheapest nutrition product out there so for anybody that considers trying it, it would be a good idea to first read this review. We have taken the time to research and gather all the information necessary for you to know what exactly this product is all about. Keep reading to find out more.

How Does It Rate?

Overall Rating: 3.2
MaxiMuscle Promax LeanMaxiMuscle Promax Lean


Value for Cost

3/5Value for Cost
Return Policy

3/5Return Policy


Brand Highlights

  • Promax Lean is a product of MaxiMuscle
  • t was established in 1995 and today has developed other brands like Maxitone, Maxiraw, Maxifuel.
  • MaxiNutrition’s products are doing relatively well on popular stores including Boots, Holland & Barrett and Tesco.
  • It also offers support services for beginner athletes who are looking for expert advice on how to develop strength and improve performance.
  • In February 2011 the science-led global healthcare company, GSK acquired MaxiNutrition. This suggests that from this point on, its products will even be better.



*All individuals are unique. Your results can and will vary.

Key Ingredients

  • BioMAX Whey Protein
  • Caffeine
  • Vitamin B5
  • CLA
  • Guarana Extract


  • Promax lean tastes great
  • Supplies the body with high quality protein for muscle growth
  • Stimulate the nervous system and improves focus


  • Caffeine may not be safe for sensitive people
  • Taking in too much protein may result in excess gas been produced in the stomach
  • Not the most affordable shake around

How Does This Product Work?

When taken in between meals, Promax Lean will stimulate your nervous system and muscles in order to get them ready for a workout. As you go through the training, the protein content and the CLA compound will help in building more muscles over time while burning the extra fat around your body.

This is why it is said that this product will help define your muscles.

MaxiMuscle Promax Lean Ingrdients – Are They Safe and Effective?

There are 5 important ingredients that make Promax Lean what it is. Here they are:

BioMAX Whey Protein

– This is a proprietary blend of high-quality whey protein formulated to assist the body in defining the muscles and support growth. Each serving of Promax Lean provides the user with 38 grams of BioMAX whey protein.[1]


– This substance is known to boost alertness and mental focus. People who take caffeine are usually much more active and their attention level is improved. Each serving of Promax contains 125 mg of caffeine.[2]

Vitamin B5

– Research suggests that vitamin B5 is involved in mental performance and energy metabolism.[3]


– Conjugated Linoleic Acid is a natural compound found in meat that the human body can’t produce. Preliminary research suggests it can help with muscle growth when combined with proper training.

Guarana Extract

– Just like caffeine, guarana extract works by stimulating the central nervous system, the heart and the muscles.[4]

ManxiNutrition advice to take the Promax Lean in between meals to make the most out of the ingredients involved in the formulation.



*All individuals are unique. Your results can and will vary.

MaxiMuscle Promax Lean FAQs

Q: Are There Any Side effects of MaxiMuscle Promax Lean?

A: Most ingredients used in the formula are relatively safe. The only problem is the caffeine content which might cause a headache, insomnia, and palpitation in sensitive users. You don’t want to take this formula when going to sleep. That would be a bad idea.

Q: How Quickly Will You Get The Results?

A: The results will actually depend on how hard you work. The Promax Lean formula alone is nothing without you training regularly. MaxiNutrition does offer expert advice to beginners who don’t yet know how to take advantage of this product.

Q: Is There any free trial pack available?

A: We are not aware of any free trial offer available.

Read NextGNC Total Lean Shake



*All individuals are unique. Your results can and will vary.

MaxiMuscle Promax Lean – Final Verdict

Compared to other sports nutrition products, Promax Lean is certainly not the cheapest. That being said, it is one of the most respected out there so it is worth a try. The good rating this product has received speaks for itself.

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Verdict on Claimed Benefits: Below is our summary of the available evidence for the claimed benefits of below mentioned weight loss shakes, and juices based on the available research:

Ikaria Lean Belly Juice | Advanced Superfood Complex
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Overall Rating: 4.9
Lanta Flat Belly Shake | Metabolic Superfood Formula
Supports Digestive Health*Gold Star Evidence
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Dr Berg's Electrolyte Formula | Weight Loss Formula
Promote Weight Loss*Gold Star Evidence
Provides Hydration*Gold Star Evidence
Improve Muscle Health*Gold Star Evidence
Recharge Body Cells*Strong Evidence
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Ingredient Safety:
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Overall Rating: 4.8

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Consumer Health Digest. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer. *All individuals are unique. Your results can and will vary.

Customer Reviews for MaxiMuscle Promax Lean

MaxiMuscle Promax Lean Reviews – Does It Have Any Side Effects?

Customer Reviews & Ratings

1.0 out of 5

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  1. Zac Y.

    Yuck taste..Don't Buy!!
    I previously owned MaxiMuscle Promax Lean this item for a few years. It was ok, but this time the flavor is absolutely revolting and nasty. Despite the fact that I’ve never had acne and that I frequently drink milk, I am not allergic to milk but rather lactose intolerant. It makes you feel awful and also causes skin reactions. 

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MaxiMuscle Promax Lean
Protein Powder
BioMAX Whey Protein, Caffeine, Vitamin B5, CLA, and Guarana Extract.

4 Sources

We review published medical research in respected scientific journals to arrive at our conclusions about a product or health topic. This ensures the highest standard of scientific accuracy.

[1] West DWD, Abou Sawan S, Mazzulla M, Williamson E, Moore DR. Whey Protein Supplementation Enhances Whole Body Protein Metabolism and Performance Recovery after Resistance Exercise: A Double-Blind Crossover Study. Nutrients. 2017 Jul 11;9(7):735. doi: 10.3390/nu9070735. PMID: 28696380; PMCID: PMC5537849.
[2] Li YF, Ouyang SH, Tu LF, Wang X, Yuan WL, Wang GE, Wu YP, Duan WJ, Yu HM, Fang ZZ, Kurihara H, Zhang Y, He RR. Caffeine Protects Skin from Oxidative Stress-Induced Senescence through the Activation of Autophagy. Theranostics. 2018 Nov 10;8(20):5713-5730. doi: 10.7150/thno.28778. PMID: 30555576; PMCID: PMC6276298.
[3] Vitamin B5 (Pantothenic Acid)
[4] Moustakas D, Mezzio M, Rodriguez BR, Constable MA, Mulligan ME, Voura EB. Guarana provides additional stimulation over caffeine alone in the planarian model. PLoS One. 2015 Apr 16;10(4):e0123310. doi: 10.1371/journal.pone.0123310. PMID: 25880065; PMCID: PMC4399916.

**This is a subjective assessment based on the strength of the available informations and our estimation of efficacy.

*Result may vary. If you are pregnant, nursing, have a serious medical condition, or have a history of heart conditions we suggest consulting with a physician before using any supplement. The information contained in this website is provided for general informational purposes only. It is not intended to diagnose, treat, cure, or prevent any disease and should not be relied upon as a medical advice. Always consult your doctor before using any supplements.

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