Choosing the right Reflex protein for you

You know you need to take protein (if you don’t, find out why you should here) but which one and why? 

At Reflex, we have a range of proteins to choose from. We’re proudly nerdy when it comes to protein sources and no ‘not all protein is the same’. We’re going to talk you through the different sources of protein, their benefits and load you up with the information you need to decide which product suits you and your needs. Still not sure? Drop us a message and we’ll personally help you out.

Here's a quick summary to compare the proteins discussed in this blog post:

100% WHEY

Pure & simple: Whey protein concentrate

100% whey

100% Whey is aptly named because 100% of the protein in this product comes from whey, specifically whey protein concentrate. A serving typically contains around 70% protein, with the remaining % consisting of fats and carbohydrates.

 Need-to-knows of 100% Whey: 

  • A ‘Fuller’, More Rounded Product: Whey protein concentrate doesn’t go through a lengthy filtration process, therefore it retains a higher percentage of the beneficial nutrients found in whole whey, such as healthy fats and immune-boosting peptides. This also means it is higher in lactose. 
  • Richer Flavour: Due to the presence of fats and carbohydrates, 100% Whey has a creamier texture and a richer taste.
  • Cost-Effective: Whey protein concentrate is generally more affordable than whey isolate, making it a good option for those on a budget.

 Choose 100% Whey if: You're looking for a more affordable protein source, prefer a creamier texture and don't mind the inclusion of healthy fats and carbohydrates.


At Reflex, we don’t use any old whey protein concentrate. Whilst this is our most affordable protein you’ll notice it’s not the cheapest in the market. And there’s a good reason for that. We go the extra mile to find the best grass-fed protein and formulate it to perfection.

We use two types of special whey protein concentrate:
Instantised Whey Protein Concentrate: Whey protein concentrate that has undergone a process to improve how it mixes and dissolves. So no risk of clumps and no need for vigorous shaking, making it ideal for smoothies and shakes.

Ultra-Filtered Whey Protein Concentrate: Whey protein concentrate that’s been specially filtered to remove impurities whilst preserving valuable nutrients - we class this as the ‘best’, ‘most filtered’ whey concentrate you can get.

So, if you’re looking for a no nonsense protein you can trust, 100% Whey is for you.



Instant Whey Pro

Best of both: Whey protein concentrate and isolate

Our flagship protein powder, Instant Whey Pro is popular for good reason. We’ve combined whey protein concentrate and isolate, giving you the benefits of both.
 Need-to-knows of Instant Whey Pro: 
  • A Leaner Protein: While whey protein concentrate contains more fats and carbohydrates, isolate is leaner with minimal fats and carbs. This blend gives you the perfect balance of both - high in protein whilst keeping the calories low.
  • Gradual Protein Release: Due to the presence of carbs and fats, concentrate is known for its moderate digestion and absorption rate. On the other hand, isolate is quickly digested and absorbed. Combining both types results in a protein powder provides both fast and sustained protein release, ideal if you’re focussed on continuous muscle protein synthesis.
  • Improved Digestibility: Some people may experience stomach discomfort when consuming large quantities of whey concentrate due to its naturally higher lactose content. Isolate has minimal lactose so it’s easier to digest. By blending the two, individuals with mild lactose intolerance may find that they can tolerate the protein powder better while still benefiting from whey concentrate's fuller nutrient profile.
  • Cost-Effectiveness: You get the best of both worlds, the affordability of a concentrate with the purity of an isolate. 

Choose Instant Whey Pro if: you’re looking for a low fat, high protein source with gradual protein release and improved digestibility for a great price.



The crème de la crème: Two top dollar sources of whey protein isolate

Micro Whey is made up of two sources of high-quality whey protein isolate, so it’s not just any isolate product you can buy from other brands but a carefully designed premium blend for extra benefits:

  • Whey Protein Isolate: Isolate undergoes additional processing to concentrate to remove most of the fats and carbohydrates, resulting in a product that is approximately 85%+ pure protein.
  • Native Whey Protein Isolate: Unlike the other sources of whey mentioned above, native whey protein isolate comes directly from fresh milk, avoiding the cheese-making process. This source of whey is considered "native" because it bypasses high-heat and cheese production treatments  (Maubois et al., 2005). While similar in many ways to isolate, native isolate is widely perceived as purer and closer to its natural state because of the gentler processing methods to preserve the protein’s structure (O'Connell et al., 2008). This can result in higher levels of bioactive peptides and immunoglobulins, which some studies have shown to offer additional health benefits (Lamsal & Schmidt, 2010).

Like the sound of native whey protein isolate? We offer a Native Whey that includes just that.

Need-to-knows of Micro Whey: 

  • High Protein Purity: Isolate provides a higher concentration of protein per serving, making it an excellent choice if you’re aiming to increase your protein intake without additional calories or carbohydrates.
  • Low Lactose Content: It contains very little lactose, which makes it a suitable option for those who are lactose intolerant.
  • Fast Absorption: Isolate is digested and absorbed more rapidly by the body, making it an ideal choice for post-workout recovery when the body needs protein quickly.

Choose Micro Whey if: You are performing at a high level where incremental gains count. You want the purest form of protein available, want to minimise carbohydrate and fat intake, have an intolerance to lactose, or need a fast-absorbing protein for post-workout recovery. 



Ultimately, true to Reflex’s values, all our products offer high-quality, grass-fed, UK manufactured protein, and the choice comes down to your specific needs and preferences. Whether you're a dedicated athlete or just someone looking to increase their protein intake, understanding the differences can help you make an informed decision that aligns with your fitness and dietary goals. If you still need help navigating the range drop our registered nutritionist an email at