Transparent Labs Whey Protein Isolate Review

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Browse the offerings of any supplement store, and you’ll typically find that many products contain a long list of seemingly unnecessary ingredients or proprietary blends that mask the specific dosages. The sports nutrition company Transparent Labs is on a mission to eliminate this by maintaining full transparency in all of their labelings—which contain no unnecessary fillers.

Among Transparent Labs’ range of products is their top-selling grass-fed whey protein isolate, which packs a whopping 28 grams of protein per serving, with minimal fats or carbohydrates and only a handful of natural ingredients. This high protein content makes it perfect for a wide range of users, including those who are trying to put on muscle or lose weight, but is it worth the premium price tag?

We’ll help you decide if Transparent Labs 100% Grass Fed Whey Protein Isolate is right for your 2024 fitness goals in this in-depth review, including important details such as ingredients, nutrient breakdowns, price, who it’s best for and who it may not be best for.

Transparent Labs Whey Protein Isolate At a Glance

• Highly purified whey protein powder
• 28 grams of protein per serving
• 8 flavor options to choose from
• Sourced from grass-fed cows
• $1.99 per serving

Pros

• Contains 28 grams of protein per serving
• Available in multiple flavors and sizes
• Minimal fats and carbs
• Only four ingredients
• Full disclosed labeling

Cons

• Expensive
• Extra shipping cost
• Added sodium may be a turn-off for some
• Not available on Amazon

Transparent Labs 100% Grass-Fed Whey Protein Isolate Claims

The Transparent Labs page for this product boasts that it can rapidly increase muscle protein synthesis following exercise, supplying an ideal ratio of essential amino acids. On top of that, they claim it's a great choice for building muscle or losing weight due to the high protein and low carb and fat content.

Additional claims include that this powder makes an ideal choice for post-workout recovery because of the fast-digesting nature of whey protein isolate. Last but not least, the company claims its grass-fed whey isolate is one of the cleanest whey proteins on the market, since it's void of artificial flavors and sweeteners.

Quality of Ingredients

Grass-fed whey protein isolate

The whey found in Transparent Labs Whey Isolate is sourced from grass-fed cows and processed to remove most of the carbs and fats, resulting in a high protein content with minimal extra calories. Dairy produced from grass-fed cows is generally higher in omega-3s and CLA, two beneficial fatty acids, although most of the fat is removed during processing. In addition, grass-fed cows have a slightly lower environmental impact. All things considered, grass-fed vs. grain-fed whey protein doesn’t differ all that much in nutrient content. Whey isolate protein powder remains the gold standard when it comes to whey protein due to its high protein ratio and low lactose content, making it a suitable choice for a wide range of users.

Natural flavor

With the majority of protein powders on the market containing artificial flavoring, Transparent Labs takes a different approach to make their protein powders taste good by using natural flavors. Although there’s limited research to suggest that artificial flavors can negatively impact your health, some people simply prefer to go the natural route. While the specific flavoring additives will vary based on the flavor of Transparent Labs Whey Isolate you purchase, all of them appear to come from natural sources.

Stevia

Most brands typically use calorie-free sweeteners to avoid adding extra calories to their products. These can come from artificial or natural sources. Transparent Labs uses Stevia as a natural sweetener in their whey isolate. This natural sugar substitute is derived from the leaves of the Stevia rebaudiana plant, and is as much as 300 times as sweet as sugar, without the calories. While consuming artificial sweeteners in moderation is generally safe, some people prefer the no-sugars added option.

Sodium chloride

Most protein powders contain sodium chloride, better known as salt, as it helps balance out the sweetness. Transparent Labs includes varying amounts of salt in their whey isolate depending on which flavor you choose (from 140 to 360 milligrams). Sodium chloride is also an important electrolyte that can be depleted during high-intensity exercise, thus including it in your post-workout fueling can be beneficial in certain instances.

Nutrition Facts

Transparent Labs Whey Isolate packs 28 grams of protein per one-scoop (37-gram) serving, more than enough to boost muscle protein synthesis whether it be after a tough workout, or simply added to your morning oats. As the name isolate implies, the protein is isolated from other nutrients through processing resulting in a high protein product, with very few carbs and fats.

This macronutrient ratio makes Transparent Labs Whey Isolate an excellent choice for those looking to lose weight while maintaining lean muscle mass. It’s also a great option for athletes or recreational gym-goers looking to maximize muscle growth and muscle recovery around workouts. Those looking to pack on size quickly may want to try a mass gainer that includes added calories.

Due to the high level of filtration, this whey isolate is low in sugar, specifically lactose, the main milk sugar. This makes it suitable for people with lactose intolerance. That being said, if you have a true cow’s milk allergy, you may want to opt for a plant-based protein powder, such as pea protein.

Related: Pea Protein vs Whey: Which One Is Right for You?

Transparent Labs Whey Protein Isolate Flavors

Transparent Labs Whey Isolate comes in eight appetizing flavors which include:

• French Vanilla
• Chocolate Peanut Butter
• Milk Chocolate
• Strawberry
• Mocha
• Vanilla Peanut Butter
• Cinnamon French Toast
• Oatmeal Chocolate Chip Cookie

While other protein powders may come in just as many flavors, Transparent Labs prides itself in keeping its products free of artificial flavors and sweeteners. They also prioritize taste and mixability. 

Pete Nastasi, Certified Sports and Exercise Nutritional Advisor says, "Transparent Labs Whey Protein Isolate is one of the best-tasting protein powders I have ever had. I've tried their Chocolate Peanut Butter, Cinnamon French Toast and regular Milk Chocolate and all have been delicious. I also like that TL never uses any artificial sweeteners, flavors or colors in their products." 

About mixability he notes, "Being a whey protein isolate, this product mixes extremely well in a traditional shaker bottle; however, if you want a creamier and smoother consistency, then a blender is the way to go."

Transparent Labs Whey Protein Isolate Cost

Transparent Labs Whey Isolate is slightly pricier than many other whey isolates on the market, coming in at around $1.99 per serving for the two-pound size. Buying the four-pound size will save you about $0.18 per serving. On top of that, they do offer a subscription option that will save you $6 or $10 on a two-pound or four-pound container, respectively.

Although more budget-friendly products may be comparable in protein content, premier products (like this protein powder) supply users with a more refined product that’s lower in carbs and fats. According to Nastasi, "Transparent Labs also has one of the highest protein-to-calorie ratios on the market, with 28 grams per 120 calories for some of their flavors." This additional layer of quality is worth it for athletes who take their nutrition seriously.

Who Should Use Transparent Labs Whey Protein Isolate

Considering that whey protein is one of the highest quality sources of protein available, there are many types of people that can benefit from its use, including:

• Athletes looking to boost protein intake and muscle recovery after training
• People who struggle to eat enough protein from diet alone
• Bodybuilders looking to optimize muscle gains
• People on a weight loss diet trying to preserve muscle mass
• Those with mild lactose intolerance

Even though whey is a concentrated source of high-quality protein, you’ll still want to get most of your protein from your diet, as whey protein is void of many other nutrients that the body needs.

Who Should NOT Use Transparent Labs Whey Protein Isolate

Although most people will likely tolerate Transparent Labs Whey Isolate well, there are a few populations that it may not be suitable for. These include:

• People with a cow’s milk allergy or moderate to severe lactose intolerance
• Vegans or strict vegetarians
• Those with certain digestive disorders
• People with preexisting kidney disease

If you are concerned that whey protein may not be a good choice for you, it’s always best to check with a healthcare professional such as a doctor or dietitian for further guidance.

What Customers Are Saying About Transparent Labs Whey Protein Isolate

Having received 4.7/5-star ratings from over 2,500 customers (at the time of writing), Transparent Labs Whey Isolate is highly ranked among casual gym goers and serious athletes alike. Users rave about the best-tasting flavor choices and good mixability. They value the fact that the product is void of artificial sweeteners or flavoring. Some users with digestive sensitivities commented that this product sits well with them and didn’t cause any GI issues. The majority of reviews were positive, but a few customers complained that the product was too expensive at $1.99 per serving. If you can afford the slightly higher price point, the positives definitely outweigh the negatives, making this product well worth the spend.

About Transparent Labs

Transparent Labs is a Utah-based sports nutrition supplement company whose primary goal is to provide science-based products with fully transparent labels that are free of artificial ingredients or preservatives. The brand was founded back in 2015 with the goal of bringing to market science-backed products without the use of proprietary blends.

They use clinically effective dosing in all of their products and even send them out for third-party testing to ensure the safety and accuracy of each ingredient. Browse their website, and you'll find that their products don’t contain many additives or unnecessary fillers. While their products are not necessarily designed for cash-strapped shoppers, they strike a good balance between cost and quality ingredients.

Related: Transparent Labs BULK Black Pre-Workout Review

Transparent Labs Whey Protein Isolate vs Concentrate

When it comes to whey protein you’ll typically find two main types: whey protein concentrate and whey protein isolate. Whey is the remaining liquid that is formed when milk is processed to form cheese or yogurt. It then undergoes different levels of processing to increase its protein content. Whey concentrate usually contains around 80 percent protein by weight, with the remaining 20 percent being carbohydrates and fats. 

Different processing steps are used to make whey isolate, which strips even more of the carbohydrates and fats off the whey and leaves mostly protein. Whey isolate is usually at least 90 percent protein by weight. Both whey concentrate and whey isolate are complete proteins, meaning they contain all of the amino acids needed by your body.

Related: Whey Protein vs Whey Isolate: How Are They Different and Which One is Right for You?

Transparent Labs Whey Isolate vs Naked Nutrition Whey Concentrate

Compare Transparent Labs Whey Isolate to Naked Whey Protein, a whey protein concentrate, and you’ll see the isolate has 28 grams per serving versus the concentrate’s 25 grams. On top of that, the whey concentrate contains a bit more carbs and fats, making the isolate a better choice for those looking for a more purified protein powder. Last but not least, Transparent Labs Whey Isolate comes in eight flavors whereas Naked Whey is only available in four. Though the whey isolate costs a bit more, it may be worth the extra spend for some dedicated athletes.

Transparent Labs Whey Protein Isolate FAQs

How often should you take Transparent Labs Whey Isolate?

If you're new to whey protein, it’s best to start out taking it once per day around workouts. Serious athletes may consume protein powder two to three times per day, but one serving is plenty for most people, and remember that whey protein shouldn’t displace the protein in your diet from whole food sources.

How many grams of protein does Transparent Labs Whey Isolate have?

Transparent Labs Whey Isolate has 28 grams of protein per 30-gram serving (one scoop).

Is whey isolate easier to digest?

Considering that whey isolate is filtered to a higher degree than whey concentrate, it contains less lactose, carbs and fats. Generally speaking, this should make it easier to digest for most people, especially those with a sensitive stomach.

When should I drink my whey protein isolate?

Whey isolate is best consumed during your workout or at times of the day when you've gone without eating for a while, such as first thing in the morning. It makes a great choice for boosting pre-workout fueling or enhancing post-workout recovery.

Is isolate or concentrate better for muscle gain?

It’s difficult to say if one or the other is better for muscle gains as they both stimulate muscle protein synthesis to a similar degree. That said, whey isolate tends to be a bit higher in protein, potentially leading to an enhancement in muscle gains over time.

Takeaway: Is Transparent Labs Whey Protein Isolate Worth It?

Transparent Labs Whey Protein Isolate checks all the boxes for what most people are looking for in the best protein powder, including transparent labeling, science-based dosing and third-party testing.

This powder packs 28 grams of protein per serving, and contains minimal fats or carbs. It comes in a wide range of flavors, and is available in two container sizes.

Although it's a bit more expensive than some whey protein powders on the market, we found it to be worth the additional spend for serious athletes that value knowing exactly what’s in their protein powder.

Prices are accurate and items in stock as of publish time.