Transparent Labs 100% Grass-Fed Whey Protein Isolate is consistently one of the best-selling clean protein powders in the supplement industryand the reason is straightforward. It is sourced entirely from grass-fed, grass-finished American dairy cattle raised without growth hormones or hormonal agents, processed to 88% protein by weight, and made with only 4-6 natural ingredients depending on the flavor. No artificial sweeteners. No artificial flavors. No food dyes. No fillers. No preservatives. Sweetened with stevia. 28g of protein per 120-calorie serving. Informed Choice certified and Informed Protein certified. 30 servings. Available in over 19 flavors.
Protein by weight ratio88%one of the highest in the category
Ingredients (French Vanilla example): Grass-Fed Whey Protein Isolate (33g), Natural Flavors (840mg), Stevia Extract (200mg), Salt (149mg), Sunflower Lecithin (99mg)
Contains: Milk. Manufactured on equipment that also processes eggs, soybeans, wheat, shellfish, fish oil, tree nuts, and peanut oil.
Informed Choice certified. Informed Protein certified. Third-party tested.
No artificial sweeteners, artificial flavors, food dyes, gluten, or preservatives.
30 servings per container. Available in 19+ flavors and unflavored.
California Prop 65 Warning appliessee label
What’s Inside Transparent Labs Grass-Fed Whey Protein Isolate
Grass-Fed Whey Protein Isolate33g per scoop (yielding 28g protein)sourced exclusively from American cows raised on grass pasture and grass-finished, without the use of growth hormones, rBGH, or rBST. The grass-fed distinction matters beyond marketing: grass-fed dairy cattle produce milk with a more favorable fatty acid profilehigher conjugated linoleic acid (CLA) and omega-3 contentthat carries through into the whey fraction even after processing to isolate form. Whey protein isolate is the most processed form of whey, with additional filtration steps beyond concentrate that remove the vast majority of fat and lactose. The result is a protein with greater than 90% protein by dry weight, a minimal lactose content that makes it better tolerated by mildly lactose-sensitive individuals, and a lighter, less heavy texture than concentrate-based proteins. At 88% protein by weightmeaning 28g of protein from a 32g scoopTransparent Labs Whey Isolate delivers one of the highest protein-by-weight ratios in the category. The complete amino acid profile includes all nine essential amino acids with a naturally high leucine content for maximum muscle protein synthesis signaling.
Stevia Extractthe only sweetener used. Stevia is a natural, plant-derived sweetener with no effect on blood glucose or insulin response, making TL Whey Isolate appropriate for any dietary approach including low-carb, keto, and diabetic-friendly eating patterns. The absence of sucralose, acesulfame potassium, aspartame, or saccharin distinguishes it from the majority of protein powders on the market, including many that market themselves as “clean.”
Natural Flavorsderived from natural sources including plants, fruits, and spices. Each flavor variant uses a different natural flavoring systemthis is why flavors like Cinnamon French Toast, Oatmeal Chocolate Chip Cookie, and Peanut Butter achieve authentic taste profiles without artificial flavoring chemicals. The Unflavored option contains no natural flavors at alljust whey isolate, salt, and sunflower lecithin.
Sunflower Lecithina natural emulsifier derived from sunflower seeds, not soy. Facilitates mixing and prevents clumping without contributing artificial additives. The use of sunflower-sourced rather than soy-sourced lecithin is relevant for individuals avoiding soythough the product is manufactured on equipment that processes soy, so complete soy-free cannot be guaranteed.
Sodium Chloride (Salt)a small amount of salt for flavor enhancement and electrolyte content. At approximately 140mg sodium per serving, it contributes to post-workout electrolyte replenishment.
Frequently Asked Questions About Transparent Labs Grass-Fed Whey Isolate
Why does grass-fed sourcing matter for a whey protein?The nutritional composition of milkand by extension, the whey derived from itis directly influenced by what the cow eats. Grass-fed cattle produce milk with significantly higher concentrations of conjugated linoleic acid (CLA), omega-3 fatty acids, and antioxidants compared to conventionally grain-fed cattle. Even after the additional processing required to make whey isolate, a meaningful portion of these beneficial compounds carries through into the final product. Beyond nutritional composition, grass-fed and grass-finished farming practices represent higher animal welfare standards and more sustainable agricultural practicesfactors that matter to health-conscious consumers. Transparent Labs specifically sources from American grass-fed cattle to ensure quality control and traceability that international sourcing cannot guarantee.
Why use whey isolate instead of whey concentrate?Whey protein concentrate contains typically 70-80% protein by weight, with the remaining fraction consisting of fat, lactose, and other milk fractions. Whey isolate undergoes additional microfiltration to remove most of the fat and lactose, achieving greater than 90% protein by dry weight. The practical differences are: lower calorie count per gram of protein, significantly reduced lactose making it better tolerated by individuals with mild lactose sensitivity, lighter texture that mixes cleanly without heaviness, and a higher protein purity per scoop. Transparent Labs Whey Isolate achieves 88% protein by weight28g of protein from a 32g servingwhich is meaningfully higher than most isolates on the market and dramatically higher than concentrate-based proteins.
What are the best flavors and how does it mix?Transparent Labs Grass-Fed Whey Isolate is available in over 19 flavorsincluding Milk Chocolate, French Vanilla, Chocolate Peanut Butter, Cinnamon French Toast, Oatmeal Chocolate Chip Cookie, Strawberry, Mocha, Dark Chocolate, Blueberry Pancakes, Sugar Cookie, and Unflavored. Milk Chocolate, French Vanilla, and Chocolate Peanut Butter are consistently the top sellers. The product mixes easily with just a shaker cup and waterthe sunflower lecithin eliminates clumping. Many users mix it into oatmeal, yogurt, pancake batter, and coffee in addition to traditional shakes. Note that the Cookies and Cream flavor is not gluten-free due to cookie ingredientsall other flavors are gluten-free.
When should I take it and how much?One scoop post-workout is the most common use casethe rapid absorption of whey isolate makes the 2-hour post-exercise window ideal for delivering amino acids to recovering muscle tissue when protein synthesis rates are elevated. However, whey protein works effectively at any time of day. As a meal component for high-protein dietary targets, between meals for satiety, or first thing in the morning as a fast-absorbing protein source are all valid applications. Transparent Labs recommends 1-3 scoops daily depending on overall protein targets. Most individuals working toward muscle growth or body composition goals benefit from 0.7-1g of protein per pound of bodyweight dailyTL Whey Isolate provides 28g per scoop toward that target.
How to Take Transparent Labs Grass-Fed Whey Protein Isolate
Mix 1 scoop with 6-8oz of cold water or any beverage of your choice. Adjust the liquid amount to your preferred taste and consistencyless water for a stronger, thicker shake, more water for a lighter drink. Mix in a shaker cup with a wire ball for best results. For maximum results, consume 1-3 scoops daily based on your protein needs. Pairs perfectly with Transparent Labs Post Workout and Creatine HMB for a complete post-training stack.
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Who Should Not Take Transparent Labs Grass-Fed Whey Protein Isolate
Individuals with a dairy allergy should not consume this productcontains milk
Individuals with severe lactose intolerance should avoid whey protein powders, including isolate forms which retain trace lactose
Manufactured on equipment that also processes eggs, soybeans, wheat, shellfish, fish oil, tree nuts, and peanut oilnot suitable for individuals with severe multi-allergen sensitivities
Note: The Cookies and Cream flavor is not gluten-freeall other flavors are gluten-free
Consult a physician before use if pregnant, nursing, or have a pre-existing medical condition
California Residents: This product can expose you to chemicals including Lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Visit www.P65Warnings.ca.gov/food for more information.
Keep out of reach of children
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
