Monster Energy Ultra, Fantasy Ruby Red, Sugar Free Energy Drink, 16 Fl Oz
Monster Energy Ultra, Fantasy Ruby Red, Sugar Free Energy Drink, 16 Fl Oz
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Monster Energy Ultra, Fantasy Ruby Red, Sugar Free Energy Drink, 16 Fl Oz

4.6 stars out of 681 reviews
(4.6)|
681 ratings

Ingredients

Key item features

  • FULL FLAVOR, ZERO SUGAR: Monster Energy Zero Ultra energy drink is great for any occasion.
  • REFRESHING TASTE: Let the fantasy begin as the zero sugar Ultra Fantasy Ruby Red energy drink takes you back to the summer of love.
  • LIGHTER TASTE, FULL MONSTER ENERGY BLEND: For those looking for a Monster energy drink that’s lighter tasting, has zero sugar, and contains the full Monster Energy blend.
Current price is $2.6816.8 ¢/fl oz
Price when purchased online
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Monster Energy Ultra, Fantasy Ruby Red, Sugar Free Energy Drink, 16 Fl Oz $2.68 16.8 ¢/fl oz

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4.6 out of 5 stars
stars681 ratings137 reviews
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Showing 1-3 of 137 reviews

Oct 7, 2025
Xtina
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

No guilt delicioususness!

Whoa, Monster's Fantasy Ruby Red Ultra is my new obsession! The ruby red grapefruit essence mixed with that fantasy zing makes every sip feel like a tropical escape. Zero sugar means no guilt, and the smooth energy boost (hello, 150mg caffeine) powers me through workouts without the jitters. Bold, refreshing, and way better than the original. Love it!

Helpful?34VYBQ18RW5Z2871218970
Dec 3, 2025
Cassue
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Really good for being zero sugar!

One of my husbands favorite flavors of Monster. He has to have zero sugar and some of them you can tell are sugar free. This is one of the few he could drink days on end lol

Helpful?34VYBQ18RW5Z2871218970
Dec 12, 2025
Michelle
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Newer Monster flavor

There are so many monster of the flavors available. Some of them are delicious some of them not so much. This flavor was one of the most delicious I've tried.

Helpful?34VYBQ18RW5Z2871218970