I have now tested every option in Transparent Labs’ current 24-flavor selector. These tests happened over time, not side by side. Twenty-three flavored options are ranked by taste, while Unflavored is separated as a utility pick because comparing it directly with dessert flavors would be misleading. I have tested 26 flavors in total, including two that are not currently listed.
| Flavor | Score | Water | Milk |
|---|---|---|---|
1Salted Chocolate Caramel | 9.6 | 9/10 | 9.5/10 |
2Dark Chocolate | 9.5 | 9/10 | 9/10 |
3Chocolate Hazelnut | 9.2 | 8/10 | 9.5/10 |
Vanilla Peppermint | 9.1 | — | — |
Peanut Butter | 9.0 | 9/10 | - |
Vanilla Bean | 9.0 | 9/10 | — |
Mocha | 8.9 | — | — |
Milk Chocolate | 8.7 | 9/10 | 9.5/10 |
S'mores | 8.6 | 8/10 | 9/10 |
French Vanilla | 8.5 | 9/10 | 8/10 |
Chocolate Chip Cookie Dough | 8.2 | 8/10 | — |
Cocoa | 8.0 | 8/10 | — |
Vanilla Peanut Butter | 7.8 | 7.5/10 | 8.5/10 |
Mint Chocolate Chip | 7.8 | 7/10 | 9/10 |
Butterscotch Pecan | 7.5 | 6.5/10 | 7.5/10 |
Strawberry Milkshake | 7.5 | 8/10 | 8/10 |
Oatmeal Chocolate Chip Cookie | 7.2 | 7/10 | 8/10 |
Chocolate Pistachio | 7.0 | 7/10 | - |
Chocolate Peanut Butter | 6.6 | 4/10 | 9/10 |
Milk and Cookies | 5.5 | 6/10 | 5/10 |
Cinnamon French Toast | 5.5 | 2/10 | 6/10 |
Neapolitan | 5.2 | 6/10 | 5.5/10 |
Blueberry Pancakes | 5.0 | — | — |
These taste like the food on the label. Most protein brands mask cheap inputs with sweeteners. These don't.
The benchmark everything else gets compared against. Salt and caramel work together to keep the chocolate from becoming heavy or one dimensional. No other flavor in this lineup works equally well in water and milk. You can finish a full tub without getting sick of it which matters more than most people realize.
If you've never tried TL protein, start here. It's the most consistently good flavor they make.
Lower sweetness than Salted Chocolate Caramel which is the key advantage. If you drink protein every day, lower sweetness means your palate doesn't fatigue over a full tub. Dark Chocolate is the safest everyday pick for anyone who wants one consistent flavor.
If you drink protein daily, this outlasts everything else. Still enjoyable at the bottom of the tub.
Most chocolate hazelnut proteins taste like artificial nuts and cheap cocoa. This one doesn't. In water it's already well above average. Add milk and it transforms into something genuinely special. Mixability is perfect zero clumps even without a wire ball.
One catch: stevia sweetness at the back of your tongue when you swallow. If you're sensitive to it you'll notice it more here than in the chocolate flavors. If you're not, this might be your new top pick.
Sounds like a bad idea. Doesn't end up tasting like toothpaste. The vanilla base pulls the mint into a balanced, drinkable position. If you've tried French Vanilla and got hit by that heavy stevia bite at the end this solves it completely. Clean enough for daily use and works really well as a blended treat.
This completely fixes the stevia bite that makes French Vanilla less enjoyable over time. Way cleaner on the finish. Worth trying as an alternative even if you're not a mint person.
This is what peanut butter protein is supposed to taste like, and almost every brand still gets this wrong. Strong peanut butter upfront with a slight saltiness and buttery note that makes it feel like real food, not a candy version. Sweetness is moderate nothing spikes too hard. The stevia is barely noticeable, especially compared to French Vanilla.
Most peanut butter flavors go artificial, or too sweet, or taste like powder. This one actually feels like real food. Easy to drink regularly, doesn't get tiring. One of the few flavors I could drink every day without thinking about it.
Cleaner than French Vanilla. More accurate than most peanut butter flavors on the market. A legitimate daily option.
In room-temperature water: Simple vanilla with a light powdered-milk texture and a mild vanilla finish. It does not have the sharp stevia high note that made French Vanilla harsher. The score improved as the test continued and finished at 9/10.
Verdict: Plain, natural, and well executed. It is not a loud dessert flavor, which is exactly why it works as a daily option. French Vanilla can still be more satisfying in specific dessert or ice-cream-style uses, but Vanilla Bean has the cleaner everyday finish.
Solid picks with a specific use case. Know which mode you're using them in before ordering a full tub.
Actually tastes like a mocha coffee forward with chocolate depth. Not a weak chocolate flavor with fake coffee tacked on. If you already drink mocha lattes this is an easy daily buy. Best option if you want your protein to also serve as a morning coffee.
Sweeter and creamier than dark chocolate. The safest first time buy. Excellent in milk at 9.5/10. It tastes like a milkshake. Fine in water but not as clean as dark chocolate. Sweetness level means it will fatigue your palate faster over a full tub if you drink it daily.
Chocolate and marshmallow come through clearly without tasting artificial. Much more convincing in milk than water. One of the better fun flavors sweeter than the top chocolate picks so treat it as a rotation rather than a daily. If you always use milk this is a strong secondary option.
The most versatile flavor in the lineup. Doesn't compete with other smoothie ingredients. It works with bananas, oats, and recipes without fighting the other flavors. Note: the stevia bite at the back of the tongue is more noticeable here than in the chocolate flavors. If that's been an issue for you, try Vanilla Peppermint instead it uses vanilla as a base and handles the stevia much better.
In water, this tastes more like dark chocolate chip cookie milk than raw cookie dough. It’s balanced, not overly sweet, with very little stevia aftertaste, but it isn’t especially unique as a plain shake.
The flavor gets much better in yogurt, oatmeal, and baking, where the cookie dough character comes through more clearly. Smoothies work too, although banana can mute it into more of a sweet milk flavor.
After using more than half the tub, I’d say versatility is its biggest strength. Buy it for mixed use, especially yogurt and baking, not because it’s the best water only flavor.
In room-temperature water: Smells like cocoa powder and tastes closer to natural hot chocolate or chocolate milk than candy chocolate. The sweetness is not immediate, but it builds after the first sip.
Verdict: Accurate and enjoyable at 8/10. It can work daily, but the late sweetness approaches overwhelming, so Vanilla Bean is the easier everyday option.
Peanut butter barely shows up in water. In milk and smoothies with banana it becomes excellent. Buy it specifically for smoothies not for plain shakes. As a smoothie base it's one of the better picks in the lineup.
Strong mint that divides people. In milk it's 9/10 genuinely excellent for mint chocolate fans. In water the mint is sharp and can feel like too much. Know your preference before committing to a full tub.
Warm dessert vibe that's awesome for a nighttime shake but less awesome at 7 a.m. The butterscotch is at the front with the caramel being dominant it feels like it's fighting the pecan for attention. In water it's almost too much. In yogurt it calms down and becomes something you'd actually crave. Not a daily driver, but when you want something sweet it nails the spot.
Compared to Salted Chocolate Caramel, this is what you'd expect caramel to taste like heavier, more obvious. Salted Chocolate Caramel is the balanced version. This is the indulgent version.
One of the few non chocolate options that holds up in water. Fruity and clean but not as filling as the chocolate flavors. Best pick if you want something lighter or need a break from chocolate. Reliable but not essential better options exist in the same price range.
Average as a shake 7/10 water, 8/10 milk. The oatmeal note is subtle, chocolate chip barely comes through as a flavor. Buy it for baking or mixing into oats that's where it actually earns its keep. As a daily shake there are ten better options above it.
Pistachio leads, with chocolate mostly in the background. In water it is moderately sweet, surprisingly light, and has a slight aftertaste. The smoothie worked better than yogurt, where the flavors did not come together. It is distinctive, but best for pistachio fans rather than anyone wanting a chocolate-forward flavor.
A split personality. In water it's harsh with an aftertaste that doesn't resemble peanut butter at all 4/10. In milk it becomes completely different: rich, creamy, dessert like 9/10. If you always use milk you'll love this. If you ever mix with water, skip it entirely.
Don't buy this if you ever mix with water. The gap between water and milk is the largest of any flavor in the lineup.
In milk it becomes too sweet. It tastes like leftover cereal milk from a bowl of Cheerios, not cookies and cream. Interestingly, this worked noticeably better mixed into yogurt than as a regular shake. The sweetness fits dessert-style yogurt use more naturally. In water it pulls back and gets more drinkable but still not interesting. Not offensive, just no reason to pick it over anything in the top half of this list.
The cinnamon syrup profile overwhelms fast. Water is 2/10 genuinely hard to finish. Milk brings it to 6/10 tolerable. Could work as a baking ingredient for protein pancakes or cookies. As a daily shake it's not enjoyable past the first scoop.
Chocolate dominant, strawberry adds a faint brightness, vanilla barely shows. The individual flavors are better than what this delivers combined. A curiosity buy anyone who tries this will reach for Dark Chocolate next time.
Blueberry Pancakes remains a current listed option at #23, but it is still a skip.
In room-temperature water: Strong artificial blueberry aftertaste that lingers through the whole shake. Even blending does not fix it.
Verdict: This remains a current listed flavor, but it is the lowest-ranked current flavored option.
In room-temperature water: Neutral, unsweetened milk-powder character. Light foam settles quickly. No clumps after 10 seconds.
In a banana-yogurt smoothie: The banana and yogurt control the taste, and the protein is barely noticeable apart from added thickness. It is much better than drinking it plain and can be customized with berries or other fruit.
Verdict: Not a dessert shake. It is the best choice when the other ingredients should control the flavor.
These flavors were tested previously but are not in the current official selector.
This flavor may be temporarily unavailable on the TL site. It's been off and on before if you don't see it listed, check back later. Ranking stays based on when I tested it.
Most proteins use one trick: make it sweet. This one doesn't. The pretzel note is subtle but unmistakable baked pretzel flavor, not just salt. That small amount of salt does something important: it prevents the heavy aftertaste that makes you want to rinse your mouth out. You finish the shaker and don't feel gross.
Put it side by side with Gold Standard and the name "Gold Standard" suddenly feels optimistic. One tastes like someone tried. The other doesn't.
Artificial banana dominates, and the chocolate-chip element barely exists. It was hard to get through a full tub.
Salted Chocolate Caramel ranks first overall at 9.6/10.
All 24 current listed options were tested over time. Twenty-three flavored options are taste-ranked, while Unflavored is a separate utility pick.
Vanilla Bean is #6 at 9.0/10 in S Tier. Cocoa is #12 at 8.0/10 in B Tier.
Best overall: Salted Chocolate Caramel. Best daily driver: Dark Chocolate. Best simple vanilla: Vanilla Bean. Best coffee flavor: Mocha. Best utility pick: Unflavored.
