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International Protein Synergy 5 Review



International Protein Synergy 5 is a high protein, low carbohydrate protein blend, available in 1.25kg and 3kg sizes across 6 flavours.

Effectiveness 4.5/5
Taste 4/5
Mixability/Texture 4/5
  • Versatile Protein
  • Fast and Slow Proteins
  • More Filling then Other Proteins
  • Suitable as a Meal Replacement
  • Not Ideal Post-Workout Protein
  • Slightly Higher in Carbs and Fats than WPI
Taste and Mixability

Synergy 5 mixes with water or milk no problems, with the powder completely dissolving and no clumps occurring.  The taste of Synergy 5 is great, with the flavour being sweet and tasty and easy to drink. The protein blend gives a good texture to the protein powder, even with water.

Most Popular Flavours: Choc-Banana, Cookies & Cream, Turkish Delight.


Synergy 5 is primarily a blend of Whey Protein Concentrate (Slightly slower digesting protein – more general), Casein (Very slow release protein – perfect meal replacement or pre-bed shake) and Whey Protein Isolate (very fast release protein – perfect for after training). This mixture of ingredients, with minimal additives achieves the low carbohydrate formula that is Synergy 5, with a blend of fast/medium/slow protein for maximum versatility.

Final Thoughts

Synergy 5 is a good solid protein powder for anyone looking for a first-time protein, or a general protein to fit into their diet. The taste is great, making it a convenient shake for a meal replacement, and the low carbohydrate content makes it a great tool as a pre-bed snack or as part of a weight loss diet.

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