Real guava sharpened with lime. The first sip hits bright. Crisp enough to know something just happened. Clean, dry, and hits the same at 4PM as it did at 2.
Everyday
Maracuyá
Passion Fruit
Tart and aromatic the way the actual fruit is, not the flavor you're used to. Bright acidity up front, then dry and clean before you expect it. The one that tastes like someone knew what they were doing.
Bold
Lulo
Naranjilla
Citrus with something tropical underneath you can't quite place. Bright and tangy with a dry finish that moves on before you can catch it. Not orange. Not grapefruit. Something from the Andes that earned its spot.
Discovery
Why people switch to XCV
Your afternoon coffee costs more, crashes harder, and keeps you up at night. Here's how XCV compares.
XCV
Your 2nd Coffee
Celsius
Energy
Smooth, sustained
Jittery spike
Fast onset
Caffeine
200mg natural
~95mg synthetic
200mg synthetic
Sugar
0g
Depends on order
0g
Sweetener
Monk fruit
Sugar / syrup
Sucralose
Sleep impact
Undisrupted (L-theanine)
Disrupted
Varies
Daily cost
~$2–3
$5–6
$2–3
Format
Powder stick
Café trip
Powder / Can
XCV
Smooth, sustained energy
200mg natural caffeine from guayusa
0g sugar, monk fruit sweetened
Undisrupted sleep (L-theanine)
~$2–3/day portable stick pack
Your 2nd Coffee
Jittery spike, then crash
Disrupts sleep if after 2PM
$5–6 per café visit
Sugar and syrup common
Celsius
Fast onset, synthetic caffeine
Sucralose sweetened
Can-first format
Why there's no crash.
Guayusa.
Most caffeine is isolated in a lab. Guayusa grows it alongside L-theanine, theobromine, and polyphenols — all in one leaf. The result: smooth energy that arrives without a spike and leaves without a crash. One plant. No engineering required.
200mg
Natural Caffeine
100mg
L-Theanine
0g
Sugar · Artificial Anything
XCV
Built from the inside
"I didn't set out to build a brand. I set out to fix my afternoons."
Brian has spent his career at companies where the team believed they could build something better. That resonated with him. He's seen how brands scale from the inside. He's served. When his own afternoon crash kept getting worse, he built XCV. The answer came from guayusa, a plant his family in Ecuador knew long before he did. The formulation is led by a PhD research scientist.
Summer 2026
Join the Founding 200
Be first. Early access before public launch.
First AccessNo SpamEarly Access Only
One quick question
What are you currently drinking at 2PM?
Limited to 200 founding members.
FAQ
A controlled energy system powered by guayusa. 200mg natural caffeine + L-theanine. Zero crash, zero sugar, built for daily use.
Whenever your energy drops and your current solution isn't cutting it. Most people reach for XCV between 1–4PM — when the second coffee would give you jitters and the energy drink would give you regret. One stick pack, mixed in cold water, and you're sharp through the rest of your day.
That's exactly what it's designed to do. 200mg of natural caffeine from guayusa gives you the same alertness without the anxiety, jitters, or sleep disruption. And at $2–3 per stick, it costs less than half your afternoon Starbucks.
No. That's the point. Guayusa naturally pairs caffeine with L-theanine — the compound that promotes calm focus without anxiety or sleep disruption. Your afternoon energy shouldn't cost you your night.
No. XCV is a clean caffeine system you mix into water. No carbonation, no neon, no gym-bro energy. Just guayusa, L-theanine, and real fruit flavor in a format that disappears into your day.
XCV is built for steady energy, not a spike. Natural caffeine from guayusa paired with L-theanine for focus without anxiety. Real fruit flavor, a finish that clears fast, and a portable stick pack format.
Summer 2026. Founding members get early access before public launch.
The first sip is sharp. Real fruit acidity that hits clean and bright. Not juice, not candy. Nothing from the energy aisle. Then the finish clears. No sweetness lingering, no aftertaste. What's left is clean and cold and exactly enough. Closer to mineral water than anything with caffeine in it.
Portable, simple, and easy to control. Tear, mix, and go — without carrying a can everywhere.
