Prime Mass Gainer

by Prozis

Calories that count: a high-protein, high-carb formula built for serious muscle and weight gain.

Up to 54g protein per serving
Low fat - under 3g per 100g
High calorie for bulking phases
For shakes, smoothies, baking and more

Choose flavour2 flavours

Flavour pictures illustrate the taste, not the powder's colour or ingredients.

Size2.72kg

Best price today

In stock

£55.06

£2.02 / 100g

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Transparent protein profile

What's inside

Values per 100g, with the amount in one 200g serving

27g protein

54g per 200g serving

65g carbohydrates

130g per 200g serving

1g fat

2.8g per 200g serving - very lean

381 kcal

761 kcal per 200g serving

View full nutritional information

Nutrition per 100g and per 200g serving
Nutrient	Per 100g	Per serving (200g)
Protein	27g	54g
Calories	380.6 kcal	761 kcal
Carbohydrates	65g	130g
Fat	1.4g	2.8g

Know when to buy

Price history

Lowest price on record, any flavour or size

£2.02/100g (£55.06 for 2.72kg on 13 Oct 2026)

2.72kg · all flavours · price per pack

Prozislatest £55.06 (one check so far)

Quick answers

Is this right for you?

Who is it for?

Prozis Prime Mass Gainer is designed for hard-gainers and anyone in a dedicated bulking phase who struggles to eat enough calories. Mass gainers combine protein with carbs and calories to support weight gain and muscle growth during intense training blocks.

What can you expect?

A calorie-dense shake designed to help you gain weight. Mass gainers pack protein alongside a significant amount of carbohydrates and calories per serving. Servings tend to be larger than standard protein powders, so expect thicker shakes and bigger scoops. With 27g of protein per 100g (around 54g per 200g serving), Prozis Prime Mass Gainer sits in a competitive position for a mass gainer product.

What else do you need to know?

Prozis Prime Mass Gainer is a mass gainer protein powder made by Prozis. It comes in 2.72kg sizes. Every price on WheyWise is read from the retailer’s own page and re-checked daily and sorted by cost per 100g, so you can see both the cheapest option and how current it is. All links to Amazon and retailer sites are affiliate links - this is how WheyWise stays free.

Frequently asked questions

Where is the cheapest place to buy Prozis Prime Mass Gainer in the UK?

The best price we have verified today is £2.02 per 100g for the 2.72kg bag, checked 13 Oct 2026. Use the buy button above to go straight to it.

How much protein does Prime Mass Gainer contain per 100g?

Prime Mass Gainer contains 27g of protein per 100g, with 54g per 200g serving. It is a mass gainer product.

Is Prozis Prime Mass Gainer currently in stock?

At the last check, 2 out of 2 tracked variants were in stock. Stock status carries the same fetch time as the price shown above, so check the retailer listing before ordering.