Transparent Labs Grass-Fed Whey Protein Isolate - Naturally Flavored, Gluten Free Whey Protein Powder with 28g of Protein per Serving & 9 Amino Acids - 30 Servings, Chocolate Peanut Butter
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Availability:
Only 5 left in stock, order soon!
Arrives
Thursday, Jul 23
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Flavor Name: Chocolate Peanut Butter
Features
- Naturally Flavored Clean Protein Powder: Made from naturally-fed, hormone-free whey, free of artificial sweeteners, food dyes, gluten, and preservatives. Transparent Labs 100% Grass-Fed Whey Protein Isolate is one of the cleanest proteins on the market.
- 28g of Protein Per Serving: Transparent Labs Whey Protein Isolate is sourced from 100% grass-fed, grass finished American dairy cattle. It contains one of the industrys highest protein-by-weight ratios, and packs 28g of protein per serving with minimal sugar or fat.
- Enhance Recovery, Increase Strength: Transparent Labs 100% Grass-Fed Whey Protein Isolate gives you a highly bioavailable protein that is light on the stomach and goes down easily. This is the perfect protein for those who want to support recovery and promote muscle growth, while promoting overall health and longevity.
- Contains All Nine Essential Amino Acids: Protein is made up of amino acids, which are the building blocks of muscle proteins. Depending on where your protein comes from, it will contain different amounts of the various building blocks. All of our protein powders contain all nine essential amino acids in a balanced ratio to support muscle protein synthesis, so you can trust that our protein powders will help you reach your muscle building and fitness goals.
- Easily Digestible & Rapidly Absorbed: Theres nothing worse than the digestive discomfort often associated with trying to increase your protein intake. Our protein powder is designed with your digestive health in mind. No more bloating, gas, or digestive woes - just pure protein goodness that your body can readily utilize.
Package Dimensions : 9.92 x 5.91 x 5.87 inches; 2.45 Pounds
Item model number : TL1
Date First Available : January 18, 2024
Manufacturer : Transparent Labs
Best Sellers Rank: #335 in Health & Household (See Top 100 in Health & Household) #5 in Sports Nutrition Whey Protein Powders
#5 in Sports Nutrition Whey Protein Powders:
Customer Reviews: 4.7 4.7 out of 5 stars (711)
Flavor: Chocolate Peanut Butter
Protein Source: Whey
Item Weight: 1110 Grams
Unit Count: 39.15 Ounce
Number of Items: 1
Brand Name: Transparent Labs
Age Range Description: Adult
Global Trade Identification Number: 94
UPC: 874659001394
Manufacturer Part Number: TL1
Model Number: TL1
Manufacturer: Transparent Labs
Recommended Uses For Product: Post-Workout
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Jul 23
This item is non-returnable:
Non-returnable due to Food safety reasons
View our full returns policy here.
Non-returnable due to Food safety reasons
View our full returns policy here.
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Top Amazon Reviews
Flavor Name: Chocolate Peanut Butter
Excellent whey protein isolate. It mixes very well, has a smooth texture, and the flavor is natural without being too sweet. I like that it is grass-fed, gluten free, and made with clean ingredients. It is easy to drink after workouts or as part of a daily protein shake. Condition: Arrived well packed, sealed, and in perfect condition. Value: Good value for the quality, clean formula, and high protein content. Very happy with this purchase. I would definitely buy it again. Highly recommended! 5 stars.
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Reviewed in the United States on May 27, 2026 by Jorge Cruz
Flavor Name: Chocolate Peanut Butter
This Transparent Labs Grass-Fed Whey Isolate in Chocolate Peanut Butter is hands-down my new favorite protein powder. 28g of high-quality protein per scoop, grass-fed, no artificial junk, gluten-free, and it actually tastes amazing—like a natural, not-too-sweet chocolate PB treat without any chalky aftertaste or weird chemical vibe. It mixes super smoothly in water or milk (no clumps, no grit), digests easily with zero bloating, and keeps me full post-workout. The clean label and third-party testing give me total peace of mind. Worth every penny for the quality and flavor—highly recommend if you're tired of fake-tasting proteins!
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Reviewed in the United States on March 15, 2026 by TeflonDon
Flavor Name: Chocolate Peanut Butter
I've had a lot of different protein powders through the years, including whey, casein, plant-based, pure pea (shudder). This has been my favorite. It's not stupid expensive. It tastes good. It's not too sweet, I don't drink sugary drinks or soda for context. And it doesn't leave me feeling bloated or gassy. I've had dark chocolate, vanilla, and peanut butter / chocolate. Last is my favorite. It says to mix in water, and it does break down easier in water, but I prefer mixing it in some almond milk. I also usually mix it in 12oz. It's also good in smoothies. It's a decent protein rich liquid snack on its own or with a banana.
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Reviewed in the United States on May 16, 2026 by Brad
Flavor Name: Chocolate Peanut Butter
I've tried a lot of different whey protein isolates and have landed on this one for the time being. I think Transparent labs provides good quality protein, 3rd party testing, great pricing per serving of protein, great taste depending on the flavor, and solid transparency in their ingredients. First I tried their small variety pack so I could get a sense of each flavor and below are my notes. Strawberry Milkshake (3/5): It’s got a strawberry taste but it just tastes artificial. This is one of my least favorite flavors French vanilla (4.5/5): pretty solid; it’s got a nice French vanilla flavor; it’s on the sweeter end but not overpowering Chocolate peanut butter (4.5/5): nice mix of flavors and i like that it’s not too sweet. The peanut butter taste comes throw nicely without overpowering Oatmeal Chocolate chip (4/5): it’s got a nice subtle flavor that’s not too sweet. The oatmeal flavor comes through and it does really taste like an oatmeal chocolate chip cookie. Milk Chocolate (4/5): tastes like most chocolate flavors that are on the market. Nothing specifically special or different. My favorite of those is probably the chocolate peanut butter. It's got a nice taste that's not overpowering. I usually can taste a product made with stevia but it's VERY subtle. I'll probably buy the oatmeal chocolate chip one too because it was a solid flavor as well. Highlights: - 28g per serving protein - more than most whey protein isolates I've tried - Transparent ingredients - they label how much of each ingredient is used - 3rd party testing - by informed choice - Variety of flavors - some better than others; I recommend chocolate peanut butter and oatmeal chocolate chip. Overall, I'm impressed with how much protein you get per serving as well as the pricing when compared to other ones with 3rd party testing. I especially like the inclusion of mg for each ingredient. Overall 5/5 product.
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Reviewed in the United States on February 26, 2026 Reviewed in the United States on February 26, 2026 by NedP
Flavor Name: Chocolate Peanut Butter
Tried many protein powders over the years. Old school labs was one of my favorites. When I looked upreviews for best protein powders of 2026, this came in as #1 or #2. Very smooth taste. Doesn't go down like chalk or have a chemical taste to it. I love the protein per calorie intake on top of it having very few ingredients. I don't feel bloated afterwards and it makes one hell of a killer shake in the Ninja blender. It's a little pricey, but you get what you pay for.
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Reviewed in the United States on June 14, 2026 by Mrs.Brand
Flavor Name: Chocolate Peanut Butter
Fantastic Protein Powder! I’ve been using this protein powder regularly after my workouts and I’m really happy with it. It mixes easily with water or milk, tastes great (not too sweet), and helps support muscle recovery and growth. I feel less sore the next day and it keeps me full longer. The texture is smooth with no clumps, and it doesn’t upset my stomach. Great quality for the price and a perfect addition to my fitness routine. Highly recommend!
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Reviewed in the United States on January 28, 2026 Reviewed in the United States on January 28, 2026 by Nast
Flavor Name: Chocolate Peanut Butter
No taste, everything else is good. May go back to my old standby.
Reviewed in the United States on May 28, 2026 by John Eichenberg
Flavor Name: Chocolate Peanut Butter
if you're looking for clean high protein, its solid. If looking for flavor, or to ninja creami some icecream with it, its total cheeks. This stuff does not taste any kind of good. Update: seller reached out and offered a full refund to try a different flavor. Banger customer support. Give em a shot. Maybe it's up your alley.
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Reviewed in the United States on May 9, 2026 by Clayton Ralph