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Maximuscle Promax Lean Protein Powder for Muscle Definition
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  • Promax Lean is Leaner Than Ever Before! We're Defining a New Generation

  • More Protein in Each Serving - now 28-30g per 35g of Promax Lean, with 28 Servings per Tub

  • Improved Protein Blend (61% Whey Protein Isolate) to Support Lean Muscle Development

  • Less calories, Less Fat and Less Sugar than Ever Before - Now Fat Free and Sugar Free!

  • Additional Vitamin B Complex Helping Normal Energy-Yielding Metabolism

  • Still Contains 400mg L-Carnitine, 150mg Green Tea Extract also With Added Caffeine (80mg)

All batches are screened for banned substances on the Informed Sport programme.

Maximuscle Promax Lean Protein Powder for Muscle Definition

  • Maximuscle Guarantee Maximuscle Guarantee
  • Low Fat Low Fat
  • Low Sugar Low Sugar
  • Caffeine Caffeine
  • Green Dot Recycle Green Dot Recycle
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The Benefits of Maximuscle Promax Lean Protein Powder for Muscle Definition

Maximuscle Promax Lean has been scientifically created with the specific focus on lean muscle development to enable you to reach #yourMAX.

Promax Lean powder contains a high-quality blend of whey protein isolate (55%) and calcium caseinate (41%) which combine to influence the taste and texture whilst delivering 28-30g of protein per serving (depending on the flavour).

Our blended Promax Lean powder is a fat free, sugar free, high protein shake designed to support lean muscle development.

Our Maximuscle Guarantee

Available in four delicious flavours - Chocolate, Vanilla, Strawberry, Banoffee. Promax Lean is free from artificial colours, artificial flavours and unnecessary thickeners for a cleaner taste and better consistency. It is gluten free, soy free and suitable for vegetarians. Plus, the Maximuscle 100% guarantee is our assurance that we use only natural colours and flavours to give you a delicious protein shake that is both smooth and satisfying.

The entire Maximuscle range is screened for banned substances and accredited on the Informed-Sport programme. Perfect support for a new to protein consumer or a seasoned sports professional.

Maximuscle Cyclone comes in the iconic 980g black tub which is 100% recyclable. This blend of protein powder is easily mixed.

Remember, buying in larger quantities gives much better value with our 'Buy More, Pay Less' guarantee. We stand by our money back guarantee, if you are less than satisfied with any of our products.

When to Use Promax Lean Protein Powder

For one serving, mix (35g) with 250-300ml of water in a Maximuscle shaker.

Nutritional Information
Typical Values
Per 100g
Per 35g serving
Energy, kJ
Per 100g 1508
Per 35g serving 529
Energy, kcal
Per 100g 359
Per 35g serving 126
Fat, g
Per 100g 1.7
Per 35g serving 0.6
- of which Saturates, g
Per 100g 0.6
Per 35g serving 0.2
Carbohydrate, g
Per 100g 4.6
Per 35g serving 1.6
- of which Sugars, g
Per 100g 3.4
Per 35g serving 1.2
Fibre, g
Per 100g 0.9
Per 35g serving 0.3
Protein, g
Per 100g 79.8
Per 35g serving 28.0
Salt, g
Per 100g 0.4
Per 35g serving 0.1
Vitamins and Minerals (*% of an Adult's Reference Intake)
Typical Values
Per 100g
Per 35g serving
Caffeine, mg
Per 100g 229.0
Per 35g serving 80.0
Folic Acid, μg
Per 100g 143 (72%)
Per 35g serving 50 (25%)
Green Tea Extract, mg
Per 100g 429.0
Per 35g serving 150.0
Niacin, mg
Per 100g 11.4 (71%)
Per 35g serving 4.0 (25%)
Pantothenic acid, mg
Per 100g 4.3 (72%)
Per 35g serving 1.5 (25%)
Riboflavin, mg
Per 100g 1.0 (71%)
Per 35g serving 0.35 (25%)
Thiamin, mg
Per 100g 0.8 (71%)
Per 35g serving 0.28 (25%)
Vitamin B6, mg
Per 100g 4.0 (286%)
Per 35g serving 1.4 (100%)
Vitamin B12, μg
Per 100g 1.8 (71%)
Per 35g serving 0.63 (25%)
L-Carnitine, g
Per 100g 1.1
Per 35g serving 0.4
Amino Acids (per 100g Protein)
Typical Values
Per 100g
BCAA, g
Per 100g 22.1
Per 35g serving
- of which Leucine, g
Per 100g 10.1
Per 35g serving
- of which Isoleucine, g
Per 100g 5.8
Per 35g serving
- of which Valine, g
Per 100g 6.2
Per 35g serving

Real Flavours, Real Taste

You asked, we obliged! Our loyal users requested a protein powder without unnecessary thickeners. We're always pushing boundaries to use only the most beneficial ingredients that will help you reach #yourMAX. We've removed thickeners from all our products

We only use natural flavours and colours so you won't find any artificial colours, artificial flavours in our products. FULL STOP.

Suitable for Vegetarians

Promax Lean is gluten free, soy free and is also suitable for vegetarians.

Screened & Effective

The entire Maximuscle range is screened for banned substances and accredited on the Informed-Sport programme. Food supplements are intended to supplement the diet and should not be a substitute for a varied diet and a healthy lifestyle.

What's Your Flavour?

Strawberry

INGREDIENTS: Whey protein isolate (55%) (milk), calcium caseinate (36%) (milk), strawberry powder freeze dried (5%), L-carnitine, L-tartrate, natural flavouring, green tea extract, emulsifier (sunflower lecithins), caffeine, sweetener (sucralose), beetroot juice concentrate, maltodextrin, nicotinamide, vitamin B6, calcium-D-pantothenate, acid regulator citric acid, vitamin B12.

Chocolate

INGREDIENTS: Whey protein isolate (55%) (milk), calcium caseinate (35%) (milk), low fat cocoa powder (5%), L-carnitine L-tartrate, natural flavouring, emulsifier (sunflower lecithins), green tea extract, caffeine, sweetener (sucralose), nicotinamide, vitamin B6, calcium-D-pantothenate, vitamin B1, vitamin B2, folic acid, biotin, vitamin B12.

Vanilla

INGREDIENTS: Whey protein isolate (55%) (milk), calcium caseinate (41%) (milk), L-carnitine L-tartrate, natural flavouring, green tea extract, emulsifier (sunflower lecithins), caffeine, sweetener (sucralose), vanilla extract, vanilla seeds , nicotinamide, vitamin B6, calcium-D-pantothenate, vitamin B1, vitamin B2, folic acid, biotin, vitamin B12.

Banoffee

INGREDIENTS: Whey protein isolate (55%) (milk), calcium caseinate (37%) (milk), Banoffee powder (3.5%), L-carnitine L-tartrate, natural flavouring (milk), green tea extract, emulsifier (sunflower lecithins), caramel (0.3%), caffeine, maltodextrin, sweetener (sucralose), nicotinamide, vitamin B6, calcium-D-pantothenate, vitamin B1, vitamin B2, folic acid, biotin, vitamin B12.

Product Restrictions

Some unexpected side effects can occur when taking supplements, particularly if too much of the product is used. Supplement use should be avoided if you are pregnant or breastfeeding.

If you choose to use our supplements, consult with your doctor before you start taking it, or let your GP and pharmacist know if you are already taking these products. Keep out of sight and reach of children.

Why Should I Use Whey Protein Powder?

Protein is an essential nutrient for life, responsible for numerous functions, like supporting the building of tissue, cells and muscle. Muscle growth relies on adequate proteins being available. That means a balance between protein intake and protein breakdown; something scientists call protein balance. Proteins are made from a collection of up to 20 amino acids.

Protein sources are ranked based on their amino acid profile, biological value (BV) and digestibility. As measured through nitrogen balance, BV compares protein sources against a known constant - in this case egg, which has a score of 100, meaning that the protein in egg is efficiently utilised by the body, in the absence of excreted nitrogen.

For whey protein the BV is 104, ranking it as number 1. More recently, BV has been bolstered by using the digestibility of protein - the Protein Digestibility Corrected Amino Acid Score (PDCAAS). Unlike BV, that makes an assumption on digestibility by using 'usability', PDCAAS uses the known amino acid reference score and corrects it with the true faecal digestibility. Once again, whey comes out with a top score of 1.0, as do all dairy based proteins.

Why Should I Use Promax Lean Protein Powder?

Maximuscle has delivered high quality whey protein products for over quarter of a century. Promax Lean is long-standing favourite, being fat and sugar free when mixed with water. It's easily digested as it only contains natural flavours and colours.

Promax Lean is packed with 30g of high quality Whey Protein Isolate, accounting for 55% of the total ingredients.

How to Get the Best Results From Promax Lean Protein Powder

Maximuscle Promax Lean comes in the iconic 980g black tub which is 100% recyclable. This blend of protein powder is easily mixed. To give you a convenient protein shake that is ideally taken after your work-out. It can also be used throughout the day to increase your protein intake. There are 28 servings in each tub; taking two servings per day each tub will last two weeks.

For one serving, mix one level scoop (35g) with 250-300ml of water in a Maximuscle shaker. Do not exceed two servings per day. When mixing Promax Lean , but please bear in mind that this will slow protein digestion, not to mention the added calories. You can make it as a shake, add it to food, cook with it.

High Caffeine Content

It is recommended that users do not exceed a daily intake of 400mg of caffeine from all sources.

Product Restrictions

Some unexpected side effects can occur when taking supplements, particularly if too much of the product is used. Supplement use should be avoided if you are pregnant or breastfeeding.

If you choose to use our supplements, consult with your doctor before you start taking it, or let your GP and pharmacist know if you are already taking these products. Keep out of sight and reach of children.

Coronavirus (Covid-19) Update

**Update 1st November 2020: As a result of extremely high demand for our Maximuscle products and the strict safety measures still in place, we are currently experiencing some capacity issues with our telephone support and our fulfilment operations. This may cause some slight delays in answering calls and delivery of orders. We ask for your patience and understanding in such cases. Thank you.**

We wanted to reassure you that we are keeping up to date with and implementing all the advice given by the relevant authorities whether that be at our customer support desks, warehouses or manufacturing facilities. We are also working closely with our chosen courier, DPD, who themselves are implementing changes to the way orders are delivered to ensure we all remain as safe as possible and limit all possibilities of spreading the Coronavirus (Covid-19).

Currently DPD's parcel collection, sortation and delivery operations are continuing as normal. Service levels remain excellent and their network service is over 99.9% with a first time delivery success rate of 98%.

Coronavirus is changing the way we operate and the highly stringent processes have been put in place and we are able to react quickly to ensure production of Maximuscle continues and supply to our customers is uninterrupted wherever possible. We are following a comprehensive set of guidelines regards sanitation including regular cleaning and disinfection of all workspaces plus the wearing of hygienic single-use gloves for handling and despatch of our products and shipments.

As always our products are Informed Sports Tested offering complete peace of mind and transparency regards product recipes, quality and product safety and our entire range utilises tamper-proof packaging to keep them protected during their journey to our customers.

As always all products are Informed Sports Tested offering complete peace of mind and transparency regards product recipes, quality and product safety and all our products are surrounded in tamper-proof packaging to keep them protected during their journey to our customers.

England, Wales, Scotland, Northern Ireland

Standard Delivery
Is FREE on orders of £40 and above: delivered in 1-4 working days. Deliveries under £40 will be charged at £3.95

Next (Working) Day Delivery
Costs £5.95. If you order by 2pm Mon-Fri, we will send your parcel by DPD for next working day delivery. A signature is required. Some parts of the U.K (e.g. Shetland Islands, Channel Islands) do not offer next (working) day delivery, so please allow 3-4 working days instead.

Saturday Delivery Options
Costs £12.00. If you order by 2pm Monday-Friday, we can send your parcel by DPD for exclusive Saturday delivery. Please note a signature is required. Some parts of the U.K (e.g. Shetland Islands, Channel Islands) do not offer Saturday day delivery, so please allow 3-4 working days instead.

Predict - Our One Hour Delivery Window
If you provide your mobile number at the checkout our courier DPD will provide you with a one hour delivery window so you don't have to wait in all day for their parcels.

Northern Ireland & EIRE

Standard Delivery
Costs £6.95 on all orders and will be delivered in 1-4 working days.

Next (Working) Day Delivery
Costs £9.95. If you order by 2pm Mon-Fri, we will send your parcel by DPD for next working day delivery. A signature is required. Some parts of Northern Ireland & EIRE do not offer next (working) day delivery, so please allow 2-4 working days instead.

Saturday Delivery Options
Costs £14.95. If you order by 2pm Mon-Fri, we can send your parcel by DPD for exclusive Saturday delivery. Please note a signature is required. Some parts of Northern Ireland & EIRE do not offer Saturday day delivery, so please allow 2-4 working days instead.

Channel Islands

There is a cost of £8.50 when shipping to Channel Islands.
Head to our Delivery Information page for more information.

Money Back Guarantee

We are so confident of our products’ effectiveness that we guarantee it. Just use the products as instructed on the label for 30 days, all the while maintaining a sensible training regime and a healthy diet. If you are not satisfied with the results, please send the goods back to us in the original packaging to us within 40 days, including your training and meal plans where we will review and determine if you qualify for a refund.

Please note: Short Dated Clearance Products Cannot be Refunded / Exchanged.

Returns Process

Step 1
Write your order number, name and telephone number on a piece of paper. 

Step 2
Add this sheet to your package and clearly label your returned products to our address. Use sufficient packaging to ensure the goods are delivered safely.

Step 3
Send the package to us using your choice of courier. 

More information can be found by on our returns policy.

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