Why an Energy Drink Can Feel Like a Crash

Guides February 17, 2026 · 1 min read · FAMUS Editorial Team
The quick answer

A 'crash' is a personal description of feeling tired after a drink. Caffeine effects wear off, and sleep, food, dose, and timing can all affect the experience. Check caffeine and added sugar on the bottle, and choose an amount that fits your day.

People use the word crash for the tired feeling they sometimes notice after caffeine. That experience varies from person to person. It is worth looking at what is actually in a bottle before choosing one.

Check the caffeine amount

Caffeine is a stimulant, and its effects wear off. Drinks vary widely in how much they contain. FAMUS has 125mg per 16oz bottle, sourced from coffee berry and yerba maté. Your response can depend on your sensitivity and the other caffeine you have had that day.

Check added sugar

Sugar content also varies by drink. FAMUS has 0g added sugar and uses real fruit juice plus erythritol for flavor and sweetness. The two flavors have different calorie counts: 45 in Havana Nights and 60 in OG Luxe.

Make the pour your own

The resealable bottle makes it easy to pour part of a bottle, close it, and save the rest. That is a practical feature, not a promise about how a drink will affect you. Follow the label and choose the amount and timing that work for you.

Want to compare the flavors? Explore Havana Nights and OG Luxe, then find a listed retailer.

Key takeaways
  • 01 A caffeine source alone does not guarantee a smoother experience.
  • 02 Check the amount of caffeine and added sugar per bottle.
  • 03 FAMUS has 125mg of natural caffeine and 0g added sugar per 16oz bottle.
  • 04 The resealable bottle lets you pour less than a full serving at once.

Frequently asked questions

Why do I feel tired after an energy drink? +

There is no single cause. Caffeine wears off, and your sleep, food, timing, and total caffeine intake can all affect how you feel.

Does zero added sugar guarantee no crash? +

No. Zero added sugar describes the drink's ingredients; it cannot guarantee how someone will feel afterward.

What is in a FAMUS bottle? +

Each 16oz bottle has 125mg of natural caffeine from coffee berry and yerba maté, 0g added sugar, L-theanine, and a resealable cap.

Thirsty for the real thing?
125mg natural caffeine · zero added sugar · in stores now.