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Maximuscle Promax Lean Protein Powder
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Maximuscle Promax Lean Protein Powder

  • Low Sugar
  • Caffeine
  • Green Dot Recycle
From £20.00
RRP From £39.99
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The benefits of Maximuscle Promax Lean Powder

Scientifically formulated protein to support lean muscle development. Maximuscle Promax Lean contains 25 g of BioMax True Protein; our unique blend provides high-quality protein to support your lean muscle goals. Promax Lean is a high protein, low fat and low sugar shake to complement your daily diet.

For individuals looking for muscle development - protein is the key. Maximuscle Promax Lean offer a convenient way to boost the protein content of your diet; supporting your goal when temptation threatens to hamper your progress.

What makes Maximuscle Promax Lean different?

Maximuscle Promax Lean has been nutritionally tailored to meet your training needs. Maximuscle Promax Lean is newly formulated with 25 g of BioMax True Protein, a blend of whey protein and milk protein (casein) providing both fast and slow acting protein. Promax Lean can be used following exercise or in between meals to provide additional dietary protein.

Typically, food protein concentrations are theoretically calculated based on the total nitrogen content, but this can cause some variances in the derived protein level. Maximuscle have gone one step further by validating the protein concentration in Promax Lean by comparing the weight of the individual amino acids with the calculated factored amount, qualifying this as BioMax True Protein. We guarantee that every serving of Promax Lean provides 25g of high-quality BioMax True Protein to help support the growth and maintenance of lean muscle.

For Maximuscle Athletes and Ambassadors, Progain is the preferred choice - they can go into competition with peace of mind, knowing that all of Maximuscle products are screened for banned substances and accredited by the Informed-Sport programme.

Maximuscle only use proven, reliable ingredients with known scientific benefits in our products.

Stacking support

Promax Lean is the ideal product range to support your muscle maintenance and development by being high in protein. As an alternative, why not try one of our newly formulated Promax Lean bars; great to keep in your gym bag for when the need arises.


Nutritional Information
Typical Values
Per 100g
Per serving
Energy, kJ
Per 100g 1548
Per serving 370
Energy, kcal
Per 100g 573
Per serving 137
Thiamin, mg
Per 100g 0.6/55%
Per serving 0.2/18%
Pantothenic acid, mg
Per 100g 3.1/52%
Per serving 1.1/18%
Riboflavin, mg
Per 100g 0.7/60%
Per serving 0.3/21%
Niacin, mg
Per 100g 8.2/51%
Per serving 3.0/19%
Green Tea Extract, mg
Per 100g 410.0
Per serving 151.7
Fat, g
Per 100g 5.4
Per serving 2.0
- of which Saturates, g
Per 100g 3.7
Per serving 1.4
Carbohydrate, g
Per 100g 9.9
Per serving 3.7
- of which Sugars, g
Per 100g 4.3
Per serving 1.6
Fibre, g
Per 100g 6.1
Per serving 2.3
Protein, g
Per 100g 68.0
Per serving 25.0
Salt, g
Per 100g 1.8
Per serving 0.6
Caffeine, mg
Per 100g 216.0
Per serving 80.0
Vitamins and Minerals (*% of an Adult's Reference Intake)
Typical Values
Per 100g
Per serving
Vitamin B12, μg
Per 100g 1.3/52%
Per serving 0.5/20%
Vitamin B6, mg
Per 100g 0.7/50%
Per serving 0.3/21%
Amino Acids (per 100g Protein)
Typical Values
Per 100g
L-Carnitine, g
Per 100g 1.1
Per serving 0.4

Green Tea & L-Carnitine

Each serving is packed with green tea, which is derived from the plant, camellia sinensis. Each serving also contains 400mg L-carnitine, a naturally occurring amino acid which plays a key role in the transport of fatty acids to the mitochondria of the cell.

Low in Fat & Sugar

PROMAX LEAN is ideal for individuals who are looking for a great tasting product that is high in protein but also low in fat and low in sugar.


Every serving of PROMAX LEAN is formulated with 80mg caffeine to increase your focus by making you feel more alert and enhancing concentration.

Screened & Effective

Promax Lean is ideal for individuals who are looking for a great tasting source of high-quality protein thats also low in sugar.

Serving Instructions

On the days you train: 1 serving after training + 1 serving either mid afternoon/morning.

On the days you dont train: 1 serving mid morning or 1 serving mid afternoon.

1 serving = 1 scoop

Suitable for vegetarians.

England, Wales, Scotland, Northern Ireland

Standard Delivery
Is FREE on orders over £40 and will be 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.

Channel Islands

There is a shipping fee of £8.50 when shipping to Channel Islands.


There is a shipping fee of £10.50 when shipping to Ireland.

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 life products cannot be refunded/exchanged

Returns Process

Step 1
Fill in the reverse paper of your order invoice that accompanied your order. 

Step 2
Clearly label and pack your returned products to our address

Step 3
Send the package using your choice of courier. 

More information can be found by on our returns policy.

Matt Orme Love It
Been using promax lean for almost a year now. Love the taste, love the high protein and low sugar. I use it as well as CLA and green tea tablets, and have stripped fat and gained muscle. I also use this while working out 4+ times a week.
The MaxiNutrition Team:

Hi Matt,

Thanks for this great review!

Have a great day,


Petru Mereacre n1
very good stuff
The MaxiNutrition Team:

Hi Petru,

Thanks for this great review!

If you need anything else then please get in touch, the team here at MaxiMuscle would be more than happy to assist you -

Thank you.



Dave Stone First timer
I thought I'd give this a go, along with Lean bars and as a novice have no idea what to expect. I've been trying the shakes for a couple of weeks now and I'm not sure whether I can see or feel benefits yet but it is early days, so fingers crossed! I'm not a big, hard hitting gym fan, I run, play squash and do mainly core exercises with some weights thrown in and I am getting in better shape but I've been more committed for around 7 months now...........if nothing else, trying the lean shakes + bars has improved my focus and drive, so that's cool!
Dionizio Neto it has changed for worst!
This promax used to be better when it also contained CLA in it. Now I can't see the same results anymore and even the taste is not as good as it used to be. I am swapping brands.
The MaxiNutrition Team:


Sorry to hear you aren't a fan of our product.

You will be pleased to know we have re-introduced the old whey protein formula under the MaxiMuscle banner - 

Currently on offer for £33.33!

Unfortunately it is still without CLA, but you can pick up some capsules online (also currently discounted to £13.19) -

We hope this helps.

Kind regards,


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