Worked as advertised, but word of warning!!
If you take any SSRI medication, taking L-Theanine as well may increase your risk of seratonin syndrome, a rare but extremely serious condition. If you take any serotinergic medication like SSRIs (Lexapro, Prozac, etc.), MAOIs, or TCAs, make sure you understand the risk and know the symptoms of seratonin syndrome when taking any supplement with L-Theanine.
A lot of people taking SSRI's have trouble waking in the morning and would benefit immensely from this product, so I hope Zest Labs releases a secondary version without L-Theanine so we can feel safe and comfortable taking it every day. At the moment I am only taking one pill (40mg caffeine, 40 mg L-Theanine) out of caution, but I wish I could take a full 80mg caffeine.
Age 25–34
Helped with
Wake up easier
Less morning grogginess
Bridget D.Verified buyerSep 14, 2025 · Wake Up Pill
6 found this helpful
“Waking up after 7 hours like clockwork”
From Day 1, Zest has consistently worked in 7 hours for me. I'm still figuring out the timing and if I want to be a morning exerciser before getting ready for work, but I'm waking up less groggy and more able to plan and make decisions. I used to wake up well before I needed to be up in order to have multiple alarms and a slow morning to let the coffee hit. Taking Zest is already a big improvement for a night owl with an early morning job. My only issue is sometimes I want more than 7 hours of sleep, but it will wake me up after 7 hours. So it's hard to take daily, though I know that is how it works best. I'm going to try to take it at 10PM even on weekends to wake up at 5AM and hope those habits become regular during the workweek. I've been waking up a few minutes before my alarm every day, so it's not a surprise.
Age 35–44
Helped with
Wake up easier
Less morning grogginess
More time in mornings
Better morning routine
Nicole G.Verified buyerSep 29, 2025 · Wake Up Pill
5 found this helpful
“Got me off provigil”
so I have idiopathic hypersomnia, and it has been getting increasingly worse in the last year. I was taking Provigil 200 mg twice a day and I was still having issues staying awake. Unfortunately, the Provigil put me in afib so taking more wasn’t really an option. My provider found this for me, and I started taking it in place of the provigil. It was a rough transition at first because I was also on propranolol. But after about a week, it helped me tremendously. Now I take two of these at night and I actually feel awake enough to drive to work. It’s safer because I don’t go into AFib anymore.
Age 35–44
Helped with
Wake up easier
Less morning grogginess
Feel more refreshed
Brandy F.Verified buyerNov 5, 2025 · Wake Up Pill
What reviews mention
Why people switch.
The number of reviews that mention each topic, counted from the review text.
Age and “helped with” are reviewers’ own answers to optional questions on the review form (213 of 305 answered).
Overall I like it
It's not a lot of caffeine, but it does help with feeling groggy in the morning.
Age 35–44
Helped with
Wake up easier
Less morning grogginess
More time in mornings
Feel more refreshed
Rachael C.Verified buyerFeb 27, 2026 · Wake Up Pill
Good overall, but wish it was 9 hours instead of 8
It feels nice to finally wake up not feeling groggy...but...I wish the release timing were more like 9 hours than 8. Once I take the pill, I need to go straight to bed and try falling asleep. Instead, I'd like to take the pill and lie in bed until I fall asleep. If I take the pill too early, then I get less sleep if I don't fall asleep in time.
Age 25–34
Helped with
Wake up easier
Less morning grogginess
Jonathan R.Verified buyerFeb 18, 2026 · Wake Up Pill
Waking up after 7 hours like clockwork
From Day 1, Zest has consistently worked in 7 hours for me. I'm still figuring out the timing and if I want to be a morning exerciser before getting ready for work, but I'm waking up less groggy and more able to plan and make decisions. I used to wake up well before I needed to be up in order to have multiple alarms and a slow morning to let the coffee hit. Taking Zest is already a big improvement for a night owl with an early morning job. My only issue is sometimes I want more than 7 hours of sleep, but it will wake me up after 7 hours. So it's hard to take daily, though I know that is how it works best. I'm going to try to take it at 10PM even on weekends to wake up at 5AM and hope those habits become regular during the workweek. I've been waking up a few minutes before my alarm every day, so it's not a surprise.
Age 35–44
Helped with
Wake up easier
Less morning grogginess
More time in mornings
Better morning routine
Nicole G.Verified buyerSep 29, 2025 · Wake Up Pill
So far so good, cautiously optimistic
So far so good! I have always struggled with waking up feeling rested. No matter how much or little sleep I get, I feel groggy and drowsy for the first 1-2 hours of my day. Sleep inertia has been the bane of my existence for as long as I can remember. I've only tried Zest a handful of times so far, but I'm cautiously optimistic about it. It hasn't been disruptive to my sleep, but I'm actually waking up and feeling pretty functional! I've even woken up before my alarm once AND had the energy to get up and start my day instead of trying to get those extra couple minutes of rest.
Emily M.Verified buyerMar 6, 2025 · Wake Up Pill
Pleased
I am very much not a morning person, which makes having a busy work and family life difficult. I have taken Zest for two days and started each day without the usual "brain fog" that takes a while to clear. So far, the pills have not lasted for my entire sleep, and it's clear the caffeine is hitting only five or six hours after I ingest the pill. I plan to experiment with eating less at night or taking the pill with less liquid to see if that makes a difference.
