Third-party tested for protein content and purity. See the report

A woman in rim light holding a Corvin Black bar above her head

28g protein. 150 calories. 0g sugar.

The most efficient protein
you can carry.

Free shipping on 2 cartons or more.

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  • Protein per calorie, maxed
  • Full until your next meal
  • Soft bite, clean macros
  • Third-party tested
  • Satisfaction guarantee
  • Free shipping on 2+ cartons
  • 19,000+ positive reviews
  • 28g protein, 150 calories, 0g sugar
  • Satisfaction guarantee
  • Free shipping on 2+ cartons
  • 19,000+ positive reviews
  • 28g protein, 150 calories, 0g sugar

Disciplined macros. Indulgent taste.

A woman at her kitchen counter holding up an opened Corvin Black bar

Chocolate Chip Cookie Dough$39.00 | 12 bars

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A man in a parked car taking a bite of a Corvin Black bar

Chocolate Chip Cookie Dough$39.00 | 12 bars

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A woman in a gym corridor holding a Corvin Black bar beside her face

Chocolate Chip Cookie Dough$39.00 | 12 bars

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A woman at an office desk laughing as she unwraps a Corvin Black bar

Chocolate Chip Cookie Dough$39.00 | 12 bars

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A man in a kitchen biting into a Corvin Black bar

Chocolate Chip Cookie Dough$39.00 | 12 bars

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Calories from protein (%)

75%
Corvin Black bar used as the chart label
49%

Typical crisp bar

47%

Classic chewy bar

40%

Baked protein bar

Corvin Black: 150 calories, 28g protein per bar. Comparison bars: [name the three products you compared, their calories and protein per bar, and the date you checked].

A lot of protein, not a lot of calories.

Built for protein per calorie.
That is the whole brief.

  • Protein your muscles can use

    Milk and whey protein isolates with egg white, a complete amino acid profile for recovery after training.

  • Macros that add up

    150 calories and 0g sugar, so a bar fits a cut, a bulk or a desk day.

  • A bar you look forward to

    Consistency comes from a snack you actually want at 4pm.

Black A Corvin Black bar torn open, the cookie-dough bar with chocolate chunks showing
A woman lying on a studio floor with a Corvin Black bar across her face

Not all protein is created equal.

Per barBlackCopperTypical bar
Protein28g20g20g
Calories150150200
Sugar0g0g6g
Calories from protein75%53%40%

Recommended by
[Expert name], [PhD].

“[Quote from your expert in their own words, e.g. why they eat this bar after training]”

[Credential], Corvin advisor

A carton of Corvin Black bars

Nutrition facts and ingredients.

75% of calories from protein.

Nutrition Facts

Serving 1 bar (62g)

Calories150

% Daily Value*

Total Fat 2g3%

Saturated Fat 1.5g8%

Trans Fat 0g

Cholesterol 10mg3%

Sodium 160mg7%

Total Carbohydrate 12g4%

Dietary Fiber 1g4%

Total Sugars 0g

Includes 0g Added Sugars0%

Sugar Alcohol 7g

Protein 28g56%

CONTAINS: MILK, EGG. MAY CONTAIN: SOY, PEANUT, TREE NUTS. GLUTEN FREE.

PROTEIN SYSTEM Milk protein isolate, whey protein concentrate, egg white.

BINDING SYSTEM Soluble corn fiber, allulose, glycerin.

FAT SYSTEM Coconut oil.

FLAVOR SYSTEM Cocoa, natural flavor, sucralose.

A Corvin Black bar leaning on a stack of raw cookie dough balls

Four systems, one bar.

Corvin Black bar beside the four formula systems

Protein system Milk protein isolate, whey and egg white carry the 28 grams.

Binding system Soluble corn fiber, allulose and glycerin keep the bar in one piece in a bag.

Fat system Coconut oil is the 2 grams of fat that keeps the bite soft.

Flavor system Cocoa, natural flavor and sucralose do the cookie-dough work at 0g sugar.

A Corvin Black bar leaning on a water bottle in an open gym locker

Easy protein for the gym bag.

A Blueberry Pie Corvin bar leaning on a slice of lattice blueberry pie

Blueberry Pie: add a carton at checkout.

4.7 1,887 reviews

Chocolate Chip Cookie Dough

$39.00 | 1 carton, 12 bars.

Cookie dough, brown sugar and vanilla in the base. Crisps and chocolate chunks through the bar.

Cookie dough, the flavour in this carton FlavourChocolate Chip Cookie Dough More flavours

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Chocolate Chip Cookie Dough bar
Black

Chocolate Chip Cookie Dough

|

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100% satisfaction guaranteed

Satisfaction guarantee. We stand behind every bar. Not happy, email [email protected].

Nutrition facts and ingredients

Tested by [Lab name] in [Month Year]. [65] of [65] tests passed.

[Lab report link]

Real routines. Real results.

A woman in a cream coat biting a Corvin Black bar on a city street
Protein for long days
A man at home taking a bite of a Corvin Black bar, eyes closed
Discipline that tastes like dessert

★ 19,000+ positive reviews

What customers are saying.

I bought a carton ready to hate it, because every gym-bag bar I have owned tasted like drywall. The cookie dough one is a snack I actually finish. The bite is firmer than I wanted, and I still eat one after I lift.

Marcus T.

Verified buyer

My teenagers treat the pantry like a free shelf, so a carton lasts about four days. I thought the bars would be too sweet for me. They are denser than a candy bar, and I am the one hiding the last one.

Helen K.

Verified buyer

Night shifts used to end at the vending machine outside the ward. Two bars live in my locker now. The wrapper is loud at 3 a.m., and the fudge one runs sweeter than I like. Handover comes without a second trip down the hall.

Aisha W.

Verified buyer

Zero grams of sugar sounded like a trick, so I ate the blueberry bar after a long run and waited for the fake-sweet finish. It shows up, lightly, in the coating. The bar still got me home without a detour for a muffin.

Luis G.

Verified buyer

Four o'clock was the honey bun in the third-floor machine. I sulked for a week after I swapped it for this bar. It holds me to dinner, and the cookie dough chunks are why I stopped walking back downstairs.

Nina S.

Verified buyer

I paused the subscription in March because the cupboard was full, and I expected a maze of screens to do it. It was one click. I turned it back on in April after I caught myself buying single bars at the shop.

Owen B.

Verified buyer

Built on science. Backed by experts.

One carton of Corvin Black protein bars

[Expert name], [PhD]

[Credential, e.g. sports dietitian], Corvin advisor

“[Their quote]”

An unusually high protein-to-calorie ratio

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Real people. Real results.

Elena M.Verified buyer

Great flavour

The cookie dough taste showed up on the first bite, which I did not expect from a high-protein bar. The coating is a little waxy if you eat it cold. I still keep a carton in the office fridge.

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Chris P.Verified buyer

Tastes like the dough

I wanted the cinnamon one to taste like the mall pastry and it only gets halfway there. The bar is dense, and the last third is drier than the first. I bought a second carton anyway.

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Dana R.Verified buyer

Filling for 150

One bar at lunch holds me until I leave the office, which my old granola bar never did. 150 calories looked small on the label. By 3pm I had stopped walking to the break room.

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Andre L.Verified buyer

Blueberry is the one

I wrote the blueberry carton off as a novelty and opened it last. It is the one I reach for. The filling is tarter than pie, and I wish there were more of it.

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Priya S.Verified buyer

Finally not chalky

Every protein bar I tried last year left a chalk film on my teeth. This peanut butter one still has a dry finish, and I drink water with it. The chocolate chunks got me to the end of the carton.

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