Purist™ Whey Protein Powder

NO GIMMICKS. NO NONSENSE. BACKED BY SCIENCE. POWERED BY ONLY FOUR INGREDIENTS.

REP is known for creating high-quality fitness equipment designed by lifters, for lifters, and we hold our supplements to the same high standards. REP® Purist™ protein powder is packed with high-quality whey protein without all the other junk you don’t need. No artificial ingredients (like the other guys). No weird stuff you've never heard of (like the other guys). Always Informed Sport Certified and third-party lab-tested on every batch to ensure the quality, safety, and accuracy standards of world-class athletes. That means you can trust every sip meets the highest food safety standards — so it’s good for you and your performance. The scientifically proven benefits of high-quality protein powder like Purist™ protein include supporting muscle growth, recovery, and overall health by maintaining muscle mass, aiding repair, promoting a healthy weight, and strengthening the immune system.

We made Purist™ protein because as lifters ourselves, we were sick of all the gross, low-quality options endorsed by big-name athletes. They slap “high quality” on the label, but the ingredients tell a different story. Maybe they think lifters can’t read, or they’re hoping we're too lazy to check. Either way, you shouldn’t have to eat artificial, weird stuff just to get your protein in. Purist™ protein is just the good stuff—a healthy, better option. Our focus is simple: purity and quality that tastes incredible and is actually good for you. Purist™ protein powder is crafted with only four ingredients. Each serving delivers 25g of whey protein isolate sourced in the USA, with just 1g of fat and 1g of carbs – and a complete essential amino acid profile. In fact, 83% of the calories in our powder come from protein, so you know you’re getting the most out of every drink. Building muscle and recovering has never been so healthy and delicious.​

No artificial anything: Zero artificial sweeteners, colors, flavors, fillers, or gums. ​
LOW CAL: 120 calories for chocolate and 110 for vanilla.​
NO SUGAR: Perfect supplement for health-conscious athletes.​
Isolate whey protein powder: Highly refined, easily digestible, lean whey isolate has a higher protein content, lower lactose, and less fat and carbs than whey concentrate. ​
Healthy cows: Sourced from grass-fed cattle, raised humanely without the use of growth hormones or steroids.​
Happy taste buds: Available in Vanilla Bean and Dutch Chocolate for the tastiest shakes and more. It’s easy to mix and incorporate into various recipes.​
Ingredients: Made with only four ingredients that are actually food — not a science experiment. ​
Soy free: A clean, allergen-friendly option for those with dietary sensitivities.​
Environmentally conscious: Comes in eco-friendly gusseted bags, which are far more sustainable than conventional plastic tubs.

You'll love our Purist™ protein bars, too!

What are some benefits of healthy protein powder?

- Helps maintain healthy muscle mass

- Supports muscle repair after training or after injury

- Supports a healthy weight

- Strengthens immune system

- Complete essential amino acid profile 

What are the four ingredients in this protein powder?

Dutch Chocolate: Grass-fed whey protein isolate, organic cocoa processed with alkali, organic stevia (Rebaudioside A, a highly purified extract from the stevia plant that's used as a natural, calorie-free sweetener), sunflower lecithin (a natural, non-GMO emulsifier that improves mixability and supports brain health, digestion, and cell function). Unlike soy lecithin, sunflower lecithin is free from GMOs and often preferred by those avoiding soy-based ingredients. 




Vanilla: Grass-fed whey protein isolate, natural flavor, organic stevia (Reb A), sunflower lecithin. "Natural flavor" might sound vague, but there's nothing shady about it. It simply refers to a proprietary blend of flavor compounds sourced from plants, fruits, vegetables, herbs, spices, or animal products. Extracted through methods like distillation, fermentation, or roasting, these flavors enhance taste naturally—without artificial additives.

Is Purist™ protein powder dairy free?​

No, we have grass-fed whey protein isolate listed as part of our ingredients. However, it is virtually lactose free for reduced bloating and discomfort and fast and easy digestion. 

Is Purist™ protein powder vegan?​

No, our protein source is grass-fed whey protein isolate.

Is Purist™ protein powder soy free?​

Yes.

How much protein does Purist™ protein powder contain per serving?​

25 grams of protein per serving.

Does Purist™ protein powder contain added sugars?​

There are no added sugars in REP® Purist™ protein powder.

What is the Purist™ protein powder shelf life?​

Two years.

What is "isolate whey protein powder" and how is that different from whey concentrate?

Whey protein isolate is a highly refined form of whey protein that contains at least 90% protein by weight. The term "isolate" refers to the additional processing that removes most of the fat, lactose, and carbs, making it a purer and more digestible protein source. This makes it ideal for athletes, lifters, and anyone looking for a lean protein with minimal extras. Compared with whey concentrate, isolate has higher protein content (90%+ vs. 70-80%), lower lactose, and less fat and carbs, making it easier to digest and a great choice for muscle recovery. It also absorbs faster, making it especially effective for post-workout nutrition. If you want a clean, high-protein option without excess fillers, whey isolate is one of the best choices. 

Can I return this product if I buy it and have a problem with it?

While we can't accept physical returns for this type of product, if you have an issue, feel free to reach out to our Customer Support team to request a credit or refund.

CALIFORNIA WARNING: Risk of cancer and reproductive harm from exposure to lead and lead compounds. See www.P65Warnings.ca.gov/food

WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information: https://www.p65warnings.ca.gov/