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It's time to resync your natural rhythm.

Take before bed. Wake up with clarity. Move through your day with lasting energy.

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Modern life pulls you out of sync.

We're inventing tools to help you reset.

NATURAL RHYTHM
WITH ZEST
It starts with changing how you wake up
Our Wake Up Pill helps reinforce your body's natural wake-up signal over time — helping you wake up more refreshed, and delivering more energy in your mornings.
Formulated in Switzerland
Zest Wake-Up Pill refill pouch and frosted glass jar. The silver pouch has an orange label: "Timed-release caffeine supplement, Wake-Up Pill. Take before bed, wake up with energy." Printed below: "Formulated in Switzerland, 7–8 hr patented delay release."
A clear Zest capsule filled with orange and yellow micro-beads, rotating. Badges: Clinically validated formula, research backed; Non-GMO Project Verified; Certified GMP.
Take before bed. Wake up with instant energy. A clear capsule of micro-beads labelled with its ingredients: Vitamin B12, Zinc, Caffeine, Vitamin B5, Vitamin B6 and L-Theanine. Developed by sleep experts and Swiss neuroscientists. Clinically validated to counteract morning grogginess.
Zest jar with two capsules on its lid. 71% increase in cognitive clarity upon waking. 4X boost in physical readiness to move. 80% improvement in ease of waking up.
Five-star review: "I haven't woken up this good in like a decade. Wild." Justin Z, verified review. A hand holds the Zest jar against a blue sky. Five stars, 10000+ happy customers.
Supplement Facts. Serving size: 2 capsules. Servings per container: 30. Amount per serving and % Daily Value: Vitamin B5 (as calcium D-pantothenate) 6.7 mg, 134%. Vitamin B6 (as pyridoxine HCl) 1.4 mg, 82%. Vitamin B12 (as methylcobalamin) 80 mcg, 3,333%. Zinc 3.3 mg, 30%. L-Theanine 80 mg, Daily Value not established. Caffeine 80 mg, Daily Value not established. Other ingredients: microcrystalline cellulose pellets, hydroxypropyl methylcellulose, anionic methacrylate copolymer, neutral methacrylate copolymer, mono- and diglycerides of fatty acids, calcium carbonate, triethyl citrate, isomalt, iron oxides, polysorbate 80, magnesium stearate, medium chain triglycerides.

Formulation

Sourced with the highest grade ingredients on Earth.

  • Switzerland
  • Italy
  • Germany
  • 80 mg

    Caffeine

    Enhances alertness, focus, and performance.

    Role wake

  • 80 mg

    L-Theanine

    Supports relaxed alertness, mental clarity, and smooth, sustained focus.

    Role smooth

  • 6.7 mg

    Vitamin B5

    Supports energy-yielding metabolism and reduces tiredness and fatigue.

    Role metabolism

  • 1.4 mg

    Vitamin B6

    Supports cognitive and neurotransmitter function, and reduces fatigue.

    Role metabolism

  • 80 mcg

    Vitamin B12

    Supports cellular energy production and nervous system function.

    Role metabolism

  • 3.3 mg

    Zinc

    Supports healthy cognition.

    Role support

  • 0 calories
  • 0 sugar
  • Gluten free
  • Lactose free
  • Vegan
  • Non-GMO
  • Formulated in Switzerland

Sources on our Science page

The science

Studied, not just claimed

Zest’s delayed-release caffeine was tested in a peer-reviewed trial published in Scientific Reports (Dornbierer et al., 2021).

Fig. 02Peer-reviewed

Nature Scientific Reports

In a double-blind, placebo-controlled study, participants who took the delayed-release caffeine before bed showed:

  1. 400%

    increase in physical readiness to move

  2. 71%

    increase in mental clarity

  3. 80%

    improvement in ease of waking — within 15 minutes of opening their eyes

Journal
Scientific Reports
Published
2021
Design
Double-blind, placebo-controlled
Authors
Dornbierer, Yerlikaya, Wespi et al.

Fig. 02 Dornbierer, D.A., Yerlikaya, F., Wespi, R. et al. A novel bedtime pulsatile-release caffeine formula ameliorates sleep inertia symptoms immediately upon awakening. Sci Rep 11, 19734 (2021).

Read the study
“So many people struggle with mornings: fatigue, fog, snoozing for an hour. Zest’s delayed-release caffeine solves that in a way that aligns with how your biology actually works.”
Dr. Sohaib Imtiaz, MDZest medical advisor

Zest helps you take back control of your time.

Reclaim the hours you've been losing to grogginess, chaos, and crash.

Loved by our community

Rated 5 out of 5 stars

“Works so well I'm a little bewildered”

RISHI K

VERIFIED BUYER

Rated 5 out of 5 stars

“I'm waking up feeling clear and alert”

ADAM M

VERIFIED BUYER

Rated 5 out of 5 stars

“A game changer for those with chronic sleep struggles”

ALYSSA K

VERIFIED BUYER

Rated 5 out of 5 stars

“Life changing way to start the day”

LAUREN S

VERIFIED BUYER

Rated 5 out of 5 stars

“I'm a lifelong customer”

Dan S

VERIFIED BUYER

Join 20,000+ happy customers who have transformed their mornings.

  • therealsummermason and takezest14.7k Followers

    Transcript of @therealsummermason's video: When it's time to head to bed, I reach for my Zest. Take Zest before you go to bed when energy levels are low. It dissolves while you sleep so that the caffeine is released shortly before you wake up. This means energized mornings, reduced grogginess, improved sleep-wake cycles, enhanced productivity, and steady energy. Shop Zest today.

  • shervinshares42.6k Followers

    Transcript of @shervinshares's video: The Wake Up Pill. This is Zest, from one of my good friends, actually, where you take caffeine before you go to bed, and when you wake up, the caffeine just hits you, so you’re instantly awake. This is what the Zest box looks like. You get a little bag of their supplements that goes inside of here. “Wake up with energy. Take before bed.” I’m excited to try this out, the Wake Up Pill. Time-release caffeine supplement. I think after 7 hours, the Zest caffeine will hit your blood system right as soon as you wake up. “Say hello to morning energy.” “Better for you and the planet.” There’s a refill system that comes in a pouch. “What to expect”: day one, and 3 to 7. You take Zest right before you go to bed and you wake up with energy at 6 AM. Take one capsule with water nightly. I’m excited to try Zest out. Thank you for sending us over. Follow for more.

  • drsohaibimtiaz13.8k Followers

    Transcript of @drsohaibimtiaz's video: [Upbeat rap music. No speech.] On-screen text: “Fasting and morning caffeine withdrawal headaches?” “Tired in the morning but don’t want coffee?” “Zest: delayed-release caffeine pill taken at night.”

  • maria.georgas536.8k Followers
    Instagram story by @maria.georgas
  • oliviaalboher263.8k Followers

    Transcript of @oliviaalboher's video: Zest. These are life-changing. Life-changing. We just started taking them. We take one every single night, 30 minutes before we go to bed, and we wake up energized than ever, literally feeling like the Energizer Bunny. Don’t even need a coffee.

  • itsethankeiser310.8k Followers

    Transcript of @itsethankeiser's video: Does anyone else spend hours on social media when they wake up? Because I wake up and I first go to Instagram, then I go to TikTok. Then I check the stock market, then I go to crypto, and then I repeat the cycle. It’s like a fucking loop. And I do this over and over again. And I wanted to find a way to break this cycle. I found this product. It’s called Zest. It’s like a caffeine pill on an 8-hour timer. So I take it before I go to bed, and then when I wake up, the caffeine hits me or it wakes me up, and it forces me out of bed because I have all this energy. I literally cannot stay in bed. So this is a solution that’s been working for me. It’s called takezest.com. Um, pretty interesting stuff. So if you want to try it for yourself, if you have a hard time getting out of bed, try it for yourself. Put a link here and let me know what you think.