4 Pack Promo — Avatar 4 — High-Caffeine Tea Seeker / Regular Tea Is To

Supports Long-Term Wellness

Eliminates Coffee Jitters & Anxiety

Sharpens Mental Focus

Gentle on Your Stomach

Supports Long-Term Wellness

Eliminates Coffee Jitters & Anxiety

Sharpens Mental Focus

Gentle on Your Stomach

Supports Long-Term Wellness

Eliminates Coffee Jitters & Anxiety

Sharpens Mental Focus

Gentle on Your Stomach

Supports Long-Term Wellness

Eliminates Coffee Jitters & Anxiety

Sharpens Mental Focus

Gentle on Your Stomach

Supports Long-Term Wellness

Eliminates Coffee Jitters & Anxiety

Sharpens Mental Focus

Gentle on Your Stomach

Supports Long-Term Wellness

Eliminates Coffee Jitters & Anxiety

Sharpens Mental Focus

Gentle on Your Stomach

Supports Long-Term Wellness

Eliminates Coffee Jitters & Anxiety

Sharpens Mental Focus

Gentle on Your Stomach

Supports Long-Term Wellness

Eliminates Coffee Jitters & Anxiety

Sharpens Mental Focus

Gentle on Your Stomach

Kicks like coffee without the crash

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 135-150 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 135-150 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

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.

Premium Black & Green Tea

(Camellia sinensis) Organic, fair trade, antioxidant-rich

Our foundation is premium black and green tea leaves from organic farms in India, Sri Lanka, and China. Orthodox processing preserves maximum flavor and beneficial compounds including EGCG (epigallocatechin gallate) and theaflavins.

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

Randy. Verified Customer

@zesthq

10,500+ Five-Star Reviews

Frequently asked questions

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?

One serving 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.

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.

HIGH-CAFFEINE TEA FOR PEOPLE WHO THINK REGULAR TEA IS TOO WEAK

HIGH-CAFFEINE TEA FOR PEOPLE WHO THINK REGULAR TEA IS TOO WEAK

Blue Lady Black Tea

Cinnamon Apple Black Tea

Superberry Samba Green Tea

Pomegranate Mojito Green Tea

Don't Miss Out:

Kicks like coffee without the crash

How We Stack Up

Feel the synergy

US VS THEM

What's Inside Your Energy Tea?

See Why They're Obsessed

10,500+ Five-Star Reviews

Frequently asked questions

Customer Reviews

Sign Up & Save 52%