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).
Does what it says!
Zest is overall I good product! I have had trouble over the years with waking up instead of snoozing the alarm until the last minute. I struggle with motivation and a sleepy feeling that lasts until afternoon but
Age 35–44
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
Andrea D.Verified buyerAug 28, 2026 · Wake Up Pill
What have I been doing before this?!
Absolutely have no idea how I was surviving before I gave this a shot. Worth the price mostly except I wish it lasted a little longer as I go to bed way early to be up earlier than most. I’m going on my third month. Absolutely worth a month of trying it to see if it’s for you.
Age 45–54
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
True C.Apr 19, 2026 · Wake Up Pill
I don’t know if...
I don’t know if it’s a placebo but I certainly feel better!!!
Age 35–44
Helped with
Wake up easier
Feel more motivated
Melissa R.Verified buyerFeb 7, 2026 · Wake Up Pill
Works well, albeit duration is a bit short
Works, though duration is on the shorter side. I wake up feeling more awake (which is great!) but think my actual sleep duration has trended downward a bit. Overall still definitely worth it.
Age 25–34
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
More time in mornings
Feel more refreshed
Anden A.Verified buyerFeb 3, 2026 · Wake Up Pill
Great product, but you need to be consistent!
I have never been a morning person and have been taking Zest for a few months now and it definitely works. The only downside is you have to be consistent with it for it to really work. But it’s made a huge difference for me, it’s the perfect jump start to the day!
Age 25–34
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
More time in mornings
Emily L.Verified buyerFeb 2, 2026 · Wake Up Pill
Worked as promised
Worked as promised
Age 55+
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
Feel more refreshed
Roger M.Verified buyerJan 31, 2026 · Wake Up Pill
Great product , but wish it had a higher caffeine content
This is a great product and really works. someone else wrote a review saying one thing about it is like it really Kix in after 7 hours instead of 8 that has also been my experience.
But really the reason I gave it 4 stars is I feel like it should be double the strength or 120mgs 1.5 dose. I have used a double dose before and that's way more closer to how I want to feel waking up.
Age 25–34
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
Less afternoon crash
David D.Verified buyerNov 7, 2025 · Wake Up Pill
I'm a morning person now!
Only reason I gave it 4 stars is I think it's more like 7 - 7.5 hrs than 8, but it is a legit thing and generally has improved my life a lot!
Age 25–34
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
More time in mornings
Carlos L.Verified buyerOct 27, 2025 · Wake Up Pill
worked really well, I...
worked really well, I was suspicious, no more!
Age 55+
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
Feel more refreshed
preston W.Verified buyerOct 13, 2025 · Wake Up Pill
Good product, needs refinement.
This is definitely a game changer for my toolbox of ways to make sure I wake up ready to go.
I will say, the pill seems to kick in a little earlier than I would like it to. Would love a 9-10hr lead time on ingestion to affect.
In general it seems to mildly impact the quality of my sleep, primarily due to waking up slightly earlier than desired.
Any sort of optionality on the length of extended release would be a major improvement.
Age 35–44
Helped with
Wake up easier
Less morning grogginess
Feel more motivated
More time in mornings
Better morning routine
Robert H.Verified buyerJun 15, 2025 · Wake Up Pill
