---
product_id: 709355400
title: "KEY Ketone Clean Energy Drink for Focus, Zero Sugar, Low Caffeine, Natural | Variety 12-Pack, 80mg Green Tea with L-Theanine, Healthy Energy, No Crash or Jitters, No Sucralose or Aspartame"
brand: "key"
price: "¥49332"
currency: JPY
in_stock: true
reviews_count: 5
category: "Key"
url: https://www.desertcart.jp/products/709355400-key-ketone-clean-energy-drink-for-focus-zero-sugar-low
store_origin: JP
region: Japan
---

# 11.5g bioactive ketones for sustained energy 80mg natural green tea caffeine, no jitters Zero sugar, 50% more energy per gram than sugar KEY Ketone Clean Energy Drink for Focus, Zero Sugar, Low Caffeine, Natural | Variety 12-Pack, 80mg Green Tea with L-Theanine, Healthy Energy, No Crash or Jitters, No Sucralose or Aspartame

**Brand:** key
**Price:** ¥49332
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your brain’s natural power—energy that works as hard as you do!

## Quick Answers

- **What is this?** KEY Ketone Clean Energy Drink for Focus, Zero Sugar, Low Caffeine, Natural | Variety 12-Pack, 80mg Green Tea with L-Theanine, Healthy Energy, No Crash or Jitters, No Sucralose or Aspartame by key
- **How much does it cost?** ¥49332 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/709355400-key-ketone-clean-energy-drink-for-focus-zero-sugar-low)

## Best For

- key enthusiasts

## Why This Product

- Trusted key brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sugar-Free Power:** Zero sugar formula delivers 50% more energy per gram than traditional sugar-based drinks.
- • **Balanced Natural Boost:** 80mg caffeine from green tea combined with l-theanine for jitter-free mental clarity.
- • **100% Natural Ingredients:** No artificial additives—just pure, plant-based energy from coconuts and avocados.
- • **Clean, Long-Lasting Energy:** Powered by 11.5g bioactive ketones for smooth, sustained focus without the crash.
- • **Versatile Performance Fuel:** Perfect for morning routines, workouts, or powering through your workday with steady energy.

## Overview

KEY Ketone Clean Energy Drink delivers a clean, sustained energy boost using 11.5g of bioactive ketones and 80mg of natural green tea caffeine. With zero sugar and 100% natural ingredients, it offers a jitter-free, focused lift that outperforms traditional energy drinks. Ideal for keto lifestyles and professionals seeking balanced mental clarity and physical endurance.

## Description

Shelf Life: 700 Days | Expiration Date: On Packaging LONG LASTING ENERGY DRINK FROM KETONES. Experience a new natural energy to boost your brain and body. Power in every sip. SUGAR FREE. Sorry honey. We swapped sugar for ketones. Ketones have 50% more energy per gram than sugar without the sugar shock! BIOACTIVE KETONES. Ketones are our bodies super fuel. Ours are the kind our bodies use the best, and are found in coconuts and avocados.

Review: ⭐️⭐️⭐️⭐️⭐️ My New Everyday Energy Drink - I’ve been trying to cut back on caffeine and KEY has honestly become the perfect replacement for me. I used to rely on coffee every day for energy, but this feels like a much better and healthier option. The energy is clean and steady without the jitters or crash that I sometimes get from coffee. One thing I really love is how fresh the drinks taste. The flavors are unique compared to other energy drink brands and don’t have that overly artificial taste. My personal favorite is the Pineapple Passionfruit, it’s refreshing, slightly tropical, not too sweet, and super easy to drink. This has become part of my daily routine. I’ll drink one when I’m working late nights and need to stay focused or before a workout for an extra boost of energy. Super recommended!!
Review: The best new healthy energy drink! - This drink is absolutely delicious and so full of healthy benefits. I used to drink sugary energy drinks that would give me a boost of energy and then I would crash from the high sugar levels. This drink is so hydrating, sugar-free and a great pick-me up to keep me going during the day after a long morning of classes. I also drink Key before my soccer games to avoid getting jitters and maintain focus, which it is geared towards. Overall amazing drink to integrate into my everyday life!

## Features

- LONG LASTING ENERGY DRINK FROM KETONES. Experience a new natural energy to boost your brain and body. Power in every delicious sip.
- SUGAR FREE. Sorry honey. We swapped sugar for ketones. Ketones have 50% more energy per gram than sugar without the sugar shock!
- LOW CAFFEINE. A light lift; none of the jitter. 80mg of natural green tea caffeine instead of 200mg+ synthetic jolt in other energy drinks.
- 100% NATURAL. Everything, yes everything, is 100% natural! No long-list of weird artificial ingredients. We bottled nature's energy.
- BIOACTIVE KETONES. Ketones are our bodies super fuel. Ours are the kind our bodies use the best, and are found in coconuts and avocados.
- MENTAL FOCUS. The optimal balance of caffeine and l-theanine working synergistically to improve attention so you bring your best - naturally!
- UNLOCK YOUR FULL POTENTIAL! Crack a can and unleash our natural power within. We are the new evolution in brain and body performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CZ9RT255 |
| Age Range Description | Adult |
| Best Sellers Rank | #108,461 in Grocery ( See Top 100 in Grocery ) #1,345 in Energy Drinks |
| Brand | KEY |
| Brand Name | KEY |
| Caffeine Content Description | Caffeinated |
| Container Type | Can |
| Customer Reviews | 3.8 out of 5 stars 130 Reviews |
| Diet Type | Keto |
| Diet type | Keto |
| Each Unit Count | 12.00 |
| Flavor | Variety Pack |
| Flavored Drink Type | Energy Drink |
| Flavour | Variety Pack |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Package Weight | 4.55 Kilograms |
| Item Volume | 12 Fluid Ounces |
| Item Weight | 9.6 Pounds |
| Item form | Liquid |
| Manufacturer | KEY |
| Number of Items | 12 |
| Number of Pieces | 12 |
| Package Type Name | Can |
| Package information | Can |
| Product Shelf Life | 700 Days |
| Specialty | GMO Free, Sugar Free, Vegan |
| UPC | 860010711224 |
| Unit Count | 12.00 Count |

## Product Details

- **Brand:** KEY
- **Diet type:** Keto
- **Flavour:** Variety Pack
- **Item form:** Liquid
- **Number of Items:** 12

## Images

![KEY Ketone Clean Energy Drink for Focus, Zero Sugar, Low Caffeine, Natural | Variety 12-Pack, 80mg Green Tea with L-Theanine, Healthy Energy, No Crash or Jitters, No Sucralose or Aspartame - Image 1](https://m.media-amazon.com/images/I/8170wEN5Q0L.jpg)

## Available Options

This product comes in different **Flavor** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ My New Everyday Energy Drink
*by C***N on 16 March 2026*

I’ve been trying to cut back on caffeine and KEY has honestly become the perfect replacement for me. I used to rely on coffee every day for energy, but this feels like a much better and healthier option. The energy is clean and steady without the jitters or crash that I sometimes get from coffee. One thing I really love is how fresh the drinks taste. The flavors are unique compared to other energy drink brands and don’t have that overly artificial taste. My personal favorite is the Pineapple Passionfruit, it’s refreshing, slightly tropical, not too sweet, and super easy to drink. This has become part of my daily routine. I’ll drink one when I’m working late nights and need to stay focused or before a workout for an extra boost of energy. Super recommended!!

### ⭐⭐⭐⭐⭐ The best new healthy energy drink!
*by G***R on 9 March 2026*

This drink is absolutely delicious and so full of healthy benefits. I used to drink sugary energy drinks that would give me a boost of energy and then I would crash from the high sugar levels. This drink is so hydrating, sugar-free and a great pick-me up to keep me going during the day after a long morning of classes. I also drink Key before my soccer games to avoid getting jitters and maintain focus, which it is geared towards. Overall amazing drink to integrate into my everyday life!

### ⭐⭐⭐⭐⭐ Amazing
*by K***E on 13 July 2024*

I rarely write reviews. My boyfriend and I have had Key for the last week or so, and I'm kinda blown away. What did it for me was when I was working last Saturday. After a shift in 90+ degree heat + humidity, I had a can of Key around 4pm because it was my friend's last night in town and a group of us were all going out; I wanted to be there for her and didn't want to be yawning all night. I was dancing until 3am and had so much fun. No yawns, no crashes, no stomachaches, no jitters. Literally just the energy to have a fun night with my friends. AND I had no issue sleeping that night (probably because of the L-theanine which promotes relaxation!). I also love that Key is vegan, and the ingredient list is short, clean and all-natural. I usually drink Key straight out of the fridge, it tastes much better cold than at room temperature (ketones don't have the best taste, but they did a great job at covering it up). Ginger Lime is my favourite, Pineapple Passionfruit is a close second. My boyfriend likes pineapple passionfruit the best. Vodka Redbulls are gross (IMO) but would totally mix the ginger lime flavour with vodka for a makeshift Moscow mule. I'm generally pretty health-conscious and love nutritional science. Coffee makes me insanely jittery (even just half a cup) and Celcius makes my stomach hurt (probably from artificial ingredients, couldn't finish a whole can). I would never have either of those on an empty stomach as well, but usually have Key on an empty stomach, I also feel its effects a bit more when I do. I used to consistently have matcha + raw cacao in the mornings for the L-theanine + low-caffeine combo to put me in a focused, flow state for the day; particularly useful for studying/working. Because Key also has L-theanine and caffeine (both derived from green tea), it gives me a similar effect to get work done, but also gives me longer-lasting energy from the ketones (which also gives me a bit of a euphoric/happy feeling?? My boyfriend reported also being in a great mood after drinking a whole can too. A quick Google search has shown me that this is commonly reported with people in ketosis/on the keto diet as well.) Now, I alternate between my DIY drink and Key depending on whether I need sustained energy that day or not. If you're a nerd like me, check out these two papers about L-theanine + caffeine to see how this combination can enhance focus and attention (and it's even been suggested as an Adderall alternative too): [1] The Cognitive-Enhancing Outcomes of Caffeine and L-theanine: A Systematic Review (2021) [2] Effects of L-theanine-caffeine combination on sustained attention and inhibitory control among children with ADHD: a proof-of-concept neuroimaging RCT (2020) Finally, I also like how I am supporting mitochondria uncoupling with ketones (read Dr. Gundry for more) and love that the benefits of ketone drinks that used to only be available to support athletes and members of the military are now available for everyone to reap. Cannot recommend Key enough, I'll rave about it to whoever will listen.

## Frequently Bought Together

- KEY Ketone Energy Drink : Sugar Free, 80mg Low Caffeine, All Natural, 11.5g Ketones, Long Lasting Energy, Green Tea & L-Theanine for Mental Focus, Variety Pack (Pack of 12)
- Drink Update No Sugar, Caffeine-Free Energy - Jitter and Crash Free, No Overstimulation, Healthy, Natural, Improved Focus, No Sucralose, No Artificial Flavors Made with Paraxanthine (Variety, 12 Pack)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-10*