Mass Gainers

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R1 Clean Gainer

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Building size starts with consistent training, quality nutrition and consuming enough calories to support your goals. The Muscle House Mass Gainers collection features premium high-calorie protein supplements designed to help you conveniently increase your daily calorie and protein intake as part of a balanced diet and structured training program.

Whether you're finding it difficult to eat enough throughout the day, have a naturally fast metabolism or simply need a convenient post-workout shake, mass gainers offer an easy way to add extra calories, protein and carbohydrates to your nutrition plan.

Our range includes trusted brands known for quality ingredients, great taste and reliable nutritional profiles. With options containing complete protein sources, complex and fast-digesting carbohydrates, and calorie-dense formulas, you'll find products suited to a variety of training styles and nutrition goals.

Browse the Muscle House Mass Gainers collection and discover premium nutrition designed to support your journey towards building size, strength and consistent progress.

Let customers speak for us

from 19 reviews

I've been using GHK powder for a bit now and really loving it—mixes easy, no bad taste, and I can feel the quality. Noticed better recovery and just feeling better overall. Simple to use and does exactly what it’s meant to. I highly recommend it.

Paula

05/27/2026

Collagen Copper Peptide GHK-CU

Hands down best flavour if you love fruit loops you will be amazed at the taste of this 10/10

Shaun Z.

05/25/2026

Ghost Whey Protein

Amazing product and amazing customer service always from muscle house team !!!

Gehan

05/25/2026

Tonic

Perfect and very comfy lifting belt, very strong at supporting back, would recommend

Dean G.

05/25/2026

Pro Leather Belt

Best in business. Super professional and easy to deal with.

Luca

05/25/2026

Muscle House

The best flavoured protein on the market . 10/10

Luca

05/25/2026

Ghost Whey Protein

Shopping was so easy website is very easy to use and delivery well what can I say haven’t received something so fast in my life great job guys definitely a customer for life 👌🏻

Mick r.

05/25/2026

Muscle House

Absolutely loving this jumper it’s a perfect fit perfect for the gym and definitely for out the gym do your self a favour and stock up for the winter 😉✌🏻

Mick r.

05/25/2026