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).
Great start...seeing results already.
I've been using Zest for a little while now. Still experimenting to find the right dose for me, but I love that the modular system gives me the freedom to do that, and I am already noticing positive results. I look forward to continuing and finding what works. I love that the company took customer feedback into account when crafting the 2.0 formula.
Age 25–34
Helped with
Wake up easier
Better morning routine
Hayden S.Verified buyerOct 30, 2025 · Wake Up Pill
Great but 10h release time would be better
I wish it released more than 8h later. This way you could have more flexibility of when you take it vs bedtime vs wake up time.
Age 35–44
Helped with
Less afternoon crash
Danish J.Verified buyerSep 7, 2025 · Wake Up Pill
I like the idea...
I like the idea of it, however I'm not sure if it contains enough caffeine for me to notice a difference when I wake up
Age 35–44
Helped with
More time in mornings
Luba G.Verified buyerAug 25, 2025 · Wake Up Pill
Great Concept and Company - Dose could be stronger
Great customer service, concept, and delayed release innovation!! I personally think they should have a stronger option, as 80mg of caffeine did not feel like quite enough.
