A cozy black tea blended with warm cinnamon and crisp apple, delivering 150 mg of natural caffeine for steady morning energy and clear focus without jitters.
If you read the label before your first sip, Zest is made for you. Built with transparent, functional ingredients and no unnecessary additives.
Energy that lasts
Natural tea-derived caffeine and L-Theanine support sustained energy and mental clarity throughout your demanding days.
Coffee-level caffeine, tea-level calm
Each serving delivers 150 mg of natural caffeine alongside L-Theanine to help promote focused energy with a smoother feel and fewer jitters than caffeine alone.
Gentle on your digestive system
Unlike coffee's harsh acids, Zest Tea is easy on your stomach. No reflux, no discomfort, just reliable performance.
Thoughtfully selected ingredients
If you read the label before your first sip, Zest is made for you. Built with transparent, functional ingredients and no unnecessary additives.
Energy that lasts
Natural tea-derived caffeine and L-Theanine support sustained energy and mental clarity throughout your demanding days.
Coffee-level caffeine, tea-level calm
Each serving delivers 150 mg of natural caffeine alongside L-Theanine to help promote focused energy with a smoother feel and fewer jitters than caffeine alone.
Gentle on your digestive system
Unlike coffee's harsh acids, Zest Tea is easy on your stomach. No reflux, no discomfort, just reliable performance.
Based on customer-reported experiences and clinical studies on caffeine + L-Theanine. Individual results may vary. Zest is not intended to diagnose, treat, cure, or prevent any disease.
Microplastic Free
Plant Fiber Teabag
GMO free
Vegan
Zero Calories
Keto Diet
How We Stack Up
Caffeine levels per cup:
Reg. Green Tea
35mg
Reg. Black Tea
50mg
Coffee
120mg
Zest Green Tea
135mg
Zest Black Tea
150mg
Feel the synergy
Coffee-level energy. Better performance. Fraction of the cost. Natural ingredients. This is the smarter choice.
Coffee/Energy drinks
97%
Would recommend Zest to their friends.
94%
Say Zest boosts their energy
81%
Say Zest helps them stay focused without the jitters or crash.
98%
Say they enjoy the flavor
How L-Theanine Makes Caffeine Better
Clinical studies have shown that caffeine + L-Theanine improves attention, accuracy, and cognitive performance better than caffeine alone. The combination also helps to reduce the jitters, crash, and anxiety commonly associated with caffeine consumption.
US VS THEM
Not all energy sources work the same. Zest is built for smooth, focused days.
Energy Feel
Focus
Jitters / Anxiety
Crash
Energy Duration
Sugar
Artificial Ingredients
Stomach Friendly
Best For
Zest Energy Tea
Smooth & steady
Calm, clear focus
None (L-Theanine)
6–8 hours
0 g
Sustained Focus
Coffee
Spike → crash
Wired
Common
Afternoon crash
2–4 hours
0 g
Acidic
Quick wake-up
Energy Drinks
Spike → hard crash
Overstimulated
Very common
Severe crash
1–3 hours
Often 20–40 g
Often present
Often harsh
Short bursts
Regular Tea
Mild & short
Light
Rare
Fades quickly
1–3 hours
0 g
Gentle
Light energy
What's Inside Your Energy Tea?
Feel the difference a tea supported by science-backed ingredients can make. Scroll on the ingredients below to learn more about the benefits behind each one.
Natural Caffeine
135-150mg of Sustained Energy
Natural caffeine from premium black and green tea leaves delivers coffee-equivalent energy with smoother delivery and longer duration. Unlike synthetic caffeine powder, tea-based caffeine releases gradually for sustained alertness without harsh spikes or crashes.
Benefits:
Sustained Energy
Enhanced Focus
8-12 Hour Duration
Did you know?
Tea-based caffeine is metabolized more gradually than coffee's concentrated form, providing smoother energy delivery. When combined with L-Theanine, it produces optimal cognitive performance without negative side effects.
L-Theanine
For calm focus
L-Theanine is an amino acid naturally found in tea that promotes relaxed alertness without sedation. Clinical research proves it counteracts caffeine's jittery effects while enhancing cognitive performance, attention, and accuracy.
Benefits:
Eliminates Jitters
Enhanced Focus
Reduces Anxiety
Did you know?
Multiple peer-reviewed studies show that caffeine + L-Theanine together improves cognitive performance better than caffeine alone.
Our foundation is premium black and green tea leaves sourced from India, Sri Lanka or China, boosted with natural tea extract to 150mg of caffeine per serving in our black teas and 135mg in our greens. The leaf brings the antioxidants — EGCG (epigallocatechin gallate) and theaflavins — plus the L-Theanine that keeps the energy smooth instead of jittery.
Benefits:
Powerful Antioxidants
Supports Cardiovascular Health
Cellular Protection
Did you know?
Tea is the second most consumed beverage globally (after water) and has been used for thousands of years for both enjoyment and health benefits. Studies show regular tea consumption supports long-term cognitive health and metabolic function.
Natural Flavors & Botanicals
Real fruit extracts, zero artificial ingredients
Every flavor comes from real sources: blueberries, pears, pomegranate, mint, cinnamon, and apple. We use steam distillation and cold-press extraction to capture authentic flavor—never artificial flavoring compounds or synthetic sweeteners.
Benefits:
Genuine Taste
No Artificial Ingredients
0 Calories, 0 Sugar
Did you know?
"Natural flavors" legally means the flavor is derived from real plant or animal sources (we use only plant sources). This is completely different from "artificial flavors" which are created from synthetic chemicals in labs.
See Why They're Obsessed
Blue Lady tea is delicious!!
Gets me just what i need out of coffee but WAY less acidic and no sugary additives needed! This product saved my stomach lining!
AJ Harrison.
Verified Customer
Caffeine without the coffee jitters and upset stomach
Stephanie.
Verified Customer
I used to be a huge coffee drinker, but the acidity started to get my stomach upset. I tried Zest Tea hoping to enjoy a morning caffeine boost. I LOVE it.
Philtra.
Verified Customer
We are now totally addicted!
Coffee makes my stomach hurt and I get jittery from it. Zest smells great and tastes great while delivering steady energy all day with no jitters and no crash
Cassandra.
Verified Customer
I have more energy in the full 24-hour-day…. Absolutely no jitters OR heart palpitations
HOW DO YOUR HIGH CAFFEINE TEAS REDUCE THE JITTERS AND CRASH?
Our high caffeine teas are packed with amino acids, including L-Theanine, which studies show helps moderate caffeine’s effects.
HOW MUCH CAFFEINE IS IN ZEST HIGH CAFFEINE TEAS?
Our high caffeine teas range between 135 and 150mg of natural caffeine per serving, depending on the flavor.
IS IT REALLY THE MOST CAFFEINATED TEA ON THE MARKET?
As far as we know, yes. And by quite a margin. Zest high caffeine teas have about 3x the caffeine of normal tea, or about as much caffeine as a regular cup of joe.
CAN THE LEVEL OF CAFFEINE IN ZEST HIGH CAFFEINE TEAS BE HARMFUL?
Up to 400mg of caffeine per day is generally considered safe. With 120-150mg per serving, Zest’s high caffeine teas are comparable to a strong cup of coffee.
HOW DO YOU INCREASE THE CAFFEINE LEVELS?
We have developed an innovative proprietary blending method that enhances the caffeine levels. The extra caffeine comes from natural tea extracts. The process and ingredients used are natural.
THE TEA IS WHITE, IS THAT MOLD?
Tea in its natural form isn’t as caffeinated as we’d like it to be, so we developed a way to add more caffeine to our blends using natural tea extracts. A common side effect during this process is the whitening of the tea.
DO ZEST TEA BAGS CONTAIN ANY PLASTICS/MICRO-PLASTICS?
Despite the look, our tea bags are made of a plant-fiber material that is compostable and does not contain plastics/micro-plastics.
ARE YOUR PRODUCTS SUGAR FREE?
Our hot teas are all sugar free. Our ready-to-drink energy iced teas have 0 sugar flavors (and other, low-sugar flavors). Our powder packs contain a little sugar.
ARE YOUR PRODUCTS GLUTEN FREE?
All Zest products are gluten free.
HOW MANY CALORIES/CARBS ARE IN ZEST PRODUCTS? CAN I DRINK THIS ON A KETO DIET?
Our hot teas have 0 calories and carbs.
HOW MUCH WATER TO USE PER TEA BAG?
This is for brewed tea. One serving of tea is typically brewed with 6-8 oz of water. Some use as much as 12-15oz of water for the same amount of tea so it’s completely up to your personal preferences. We recommend starting with the standard measurements and experimenting to see what you like best. Our powder sticks are different — Zest Elite and our Energy + Hydration packs mix into 16 to 32 oz of cold water per stick, not 6-8 oz.
FOR HOW LONG SHOULD I BREW THE TEA?
Use near-boiling water (freshly boiled water) and brew the tea for 3-4 min if brewing Green Tea, or 4-5 min if brewing Black Tea.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
5 stars: 168 (89%)
4 stars: 15 (8%)
3 stars: 4 (2%)
2 stars: 0 (0%)
1 star: 2 (1%)
Some of the reviews shown are from related products the merchant grouped with this one.
m
mat6719ct
I like the cinnamon apple flavor, it compliments the caffeinated buzz.
K
Kim Fury
M
Mike Skocko
My favorite way to start the day.
Thank you for taking the time to leave a review! We hope it continues to be a delicious and enjoyable part of your morning routine.
T
Trey
Love the cinnamon and apple flavors!
A
Anonymous
Love the taste and I can measure my loose leaf tea to accommodate my taste and energy (caffeine) level.
Hi there! We're so glad you enjoy the Cinnamon Apple Loose Leaf. Thanks for sharing your experience!
A
ANTOINETTE HEREDIA
My Physical Therapist told me about Zest because I was having trouble getting my tea from a different company. I love the taste of the Apple Cinnamon & sometimes I only need one cup to get me thru the day
Thank you for sharing your experience with our Cinnamon Apple Tea Bags. We are so glad to hear that your physical therapist recommended our product and that you love the taste!
A
Anonymous
I'm very happy with this tea and will buy more when I run out of my supply.
That's great to hear! Let us know if you need any assistance with placing your next order. Cheers!
A
Anonymous
Delicious!
We’re so glad to hear you are enjoying Zest!
S
Shannon Ring
This is the BEST tea! No jitters! And the taste is wonderful!
Thank you for your awesome feedback!
A
Anonymous
Love this tea! I've been starting my mornings with it for 5 years!
Hi there! Thanks for sharing your love for our Cinnamon Tea!
J
Jennifer King
The flavor is spot on and I love the fact I get my morning caffeine and soak up the smell and taste of apples and cinnamon, just an amazing product. I absolutely love it and excited to try more flavors.
Thank you for your awesome feedback! We are glad to hear you are enjoying our Apple Cinnamon Tea
N
Naeem Burns
This tea is packaged very well, it taste good. I do think that the CHI cinnamon tea, has a bit of a stronger taste of cinnamon. As far as it giving me more energy, I really didn't experience that, maybe initially it might have, but I can't really say that it truly did so far. It is a good tea to have, and try.
Thank you for your review!
K
Katherine Parker
This is such a good flavor combo for the fall/winter. smells amazing
Thank you for your review, we're glad you are enjoying both the flavor and smell!
S
Sue
Best tea ever. I have been drinking, Test apple cinnamon tea for 10 years or so years10
A
Anonymous
I was skeptical but the tea mix is nice and smooth. Very good flavor!
We’re glad you gave it a try! Happy to hear you enjoyed the smooth taste and flavor—thanks for sharing your experience.
A
Anonymous
Love this one. Winter favorite
Love hearing that! We’re so glad this one’s a winter favorite. Thanks for sharing!
J
Jay
I've ordered this tea more times than I can count over the last few years. It is absolutely delicious. As someone who doesn't like coffee and used to get caffeine from soda, this has been the perfect option. A+ would recommend to anyone. The cinnamon apple is my favorite, but many of the other flavors are great too!
Hi there! Thank you so much for your glowing review!
A
April
Love the flavor and the caffeine is great without the quick drop off.
Thank you for your feedback on our Cinnamon Apple!
A
Anonymous
Been drinking it for quite a while. I never get tired of it, and I love the smell and taste. Also, I think it calms my stomach.
Hi there! Thank you for taking the time to leave a review for our Cinnamon Apple product. We love the smell and taste too!
C
Carla Norris
Cinnamon and apple . . . What's better than this combo ! Very flavorful and the aroma will definitely draw you in !
Thank you so much for your kind review!
A
Anonymous
5 stars perfect drink as always
Thank you for your amazing review! We are thrilled to hear that our Cinnamon Apple drink has consistently met your expectations. Cheers to many more perfect sips!
C
Carla N.
The cinnamon apple taste great.
The cinnamon apple taste great. Love the ingredients and caffeine gives me just enough to get my morning off to a good start.
L
Leah M.
Leah’s fabulous review
Great! What an awesome experience I’ve had with zest tea. They’ve welcomed me to the family and provided wonderful services.
W
Wesley A.
I didn't care for it
I didn't care for it
S
Susan D.
Couldn't get through the day
Couldn't get through the day without this tea!
C
Caroline C.
Tastes great!
Tastes great!
J
James K.
Great
Great
M
Michael B.
Excellent product. All the flavors
Excellent product. All the flavors I bought are great as always!
S
Steve G.
Great flavor. And the energy
Great flavor. And the energy from the caffeine. I just wish there were more choices of green tea
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