R1 Mass Gainer

R1 Mass Gainer by Rule 1 Proteins

Looking to increase size and strength as part of your training routine? R1 Mass Gainer by Rule 1 Proteins is a high-calorie mass gainer designed to support your muscle-building goals. With a 6:1 carbohydrate-to-protein ratio and over 1,200 calories per serving, this advanced formula is tailored to help you increase your daily intake and fuel your workouts.

Formulated with three quality whey protein sources and over 250g of carbohydrates per serve, R1 Mass Gainer by Rule 1 Proteins is ideal for individuals struggling to consume enough calories through food alone. It contains no banned substances, creamers, soy protein, or amino spiking — offering a clean and effective choice for those looking to put on size in a controlled and supported way.

Benefits of R1 Mass Gainer by Rule 1 Proteins:

• Delivers 1,220 calories per serving to support mass building
• Features a 6:1 carb-to-protein ratio for sustained energy
• Provides 40g of protein from three whey sources
• Free from soy protein, creamers and amino spiking
• Banned substance tested for peace of mind
• Designed to complement high-intensity training and calorie-rich diets
• Available in a range of rich, satisfying flavours

Is R1 Mass Gainer suitable for clean bulking?
Yes, R1 Mass Gainer is formulated without creamers, soy protein, or banned substances, making it a cleaner option for those pursuing structured mass gain goals.