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Sustained energy.
No crash.

Stick-pack energy you mix with water. 200mg natural caffeine. Zero sugar.

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40% off your first box
Guava Lime
XCV
Sustained Energy · No Crash

200mg Natural Caffeine

Sustained energy from guayusa extract

Zero Sugar

Monk fruit sweetened. No artificial spikes.

Real Fruit Flavors

Bright citrus and tropical — not candy.

Tear. Mix. Go.
01
Tear
Open one stick
→
02
Mix
Add to cold water
→
03
Go
Get to work
Pick your flavor.

Guava Lime

Guayaba y Limón
Bright, clean, daily energy. Real guava cut with lime. Dry finish.
Anchor

Maracuyá

Passion Fruit
Tart, sharper lift. Real passion fruit depth, not synthetic.
Identity

Lulo

Naranjilla
Bright citrus edge. Tangy, refreshing, completely unique.
Differentiator
How we compare.
XCV Celsius Monster Red Bull
Energy Smooth, sustained Fast onset Intense Brief lift
Caffeine 200mg natural 200mg per stick 160mg 80mg
Sugar 0g 0g High High
Sweetener Monk fruit Sucralose Sugar Sugar
Format Powder stick Powder / Can Can Can
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Guayusa.

A natural caffeine source for smooth, sustained energy. A leaf native to the Ecuadorian Amazon containing caffeine, L-theanine, and polyphenols in one plant. Indigenous communities have brewed it for centuries. We made it portable.

200mg
Natural Caffeine
100mg
L-Theanine
0g
Sugar · Artificial Anything
The Founder
"Why doesn't anything on the shelf look like us?"

Queens, 1995. First-generation Ecuadorian-American. Army. Finance. Running with his community every Saturday morning. Brian Mizhquiri built XCV because guayusa comes from where he comes from, the flavors come from the fruits he grew up drinking, and nobody else was going to do it right. The name is Roman numerals. The brand is built from the inside.

Summer 2026

Join the Founding 200

The first 200 members get 40% off their first box, early access before public launch, and a vote on our next flavor.

47 of 200 spots claimed