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AdvertisementThe Back Half · A TILT publication
Research · Caffeine with L-theanine
The energy pairing researchers have tested since 2008 doesn't need a 500ml can
It's caffeine with L-theanine. Many of the trials used less caffeine than you'll find in a can of TILT. That's the same pairing we use, in 330ml.
$81.99 delivered, with a Bonus Mixed 8 Pack on your first slab. 100 days to decide. Skip or cancel online, anytime.
“No after taste, and what a flavour! The peach is so good. Days gone with no crash!!!”
Walk into any servo and the fridge is full of half-litre cans. Bigger can, bigger hit. That's the idea.
The pairing researchers keep coming back to has never needed a big can.
Seventeen years of trials
Same pairing, again and again
- 1
2008.
Researchers in the UK gave 27 people a small dose of caffeine with L-theanine. They got faster and more accurate at switching between tasks, and less thrown by distractions. The caffeine dose was 50mg.1
- 2
2010.
A Dutch team found the pairing helped people switch tasks more accurately, and people said they felt more alert.2
- 3
2014.
Researchers pooled 11 trials. In the first two hours, caffeine with L-theanine gave moderate gains in how alert people felt and how accurately they switched attention.3
- 4
2025.
37 people were kept awake all night. The pairing beat a dummy pill on speed and accuracy in an attention test.5
Why it doesn't need a big can
The pairing does the work, not the size of the can
is all TILT needs. Caffeine with L-theanine, in a normal-sized can.
Many trials used 50mg of caffeine or less
Many of those trials used 50mg of caffeine or less. That's under half a can of TILT.
So TILT is a 330ml can. Caffeine helps you stay alert. L-theanine is paired with it to help keep your attention on the task.
You get locked in for the back half without drinking half a litre to get there. And it's low sugar, so there's no sugar crash at three o'clock.
A few honest things first
What the research doesn't say
None of these trials tested TILT. They used capsules and lab drinks, at different doses to ours.
A lot of the early work came from a tea company's research team. And a 2024 review said the pairing possibly improves attention, with the evidence still thin in places.4 We'd rather tell you that now.
What we can tell you is what customers say once it's in the fridge.
“No after taste, and what a flavour! The peach is so good. Days gone with no crash!!!”
What's in the can
What you get from a can of TILT
Locked in for the back half. Caffeine with L-theanine, to help keep your attention on the task.
No crash. Low sugar, naturally sweetened.
No jitters. Switched on, with a clear head.
Two flavours. Raspberry Lime and Peach Iced Tea. Most of our reviews lead with the taste.
$81.99 delivered, with a Bonus Mixed 8 Pack on your first slab. 100 days to decide. Skip or cancel online, anytime.
4.9 from 27 reviews
What people say
“This drink is hectic, No weird feeling on your tongue and teeth, No after taste, and what a flavour! The peach is so good. Days gone with no crash!!!”
“Great flavours without being overly sweet. Natural tasting”
“1 thing I hate about energy drinks is the gross as after taste they leave…. this drink had none of that! The flavour is so delicious and refreshing!”
“I generally don't like drinking energy drinks, but when i tried Tilt it changed my perspective, its got such a nice & unique flavour that cant be found in standard energy drinks.”
Start here
Start with your first slab
24 cans, both flavours: Raspberry Lime and Peach Iced Tea. Low sugar, naturally sweetened.
Free shipping, every 4 weeks. Skip, pause or cancel online, anytime. One bonus pack per customer, while this batch lasts.
Dispatched within 24 hours, Mon to Fri, from Perth. Secure checkout.
Real people, real cans.
Questions people ask first
What is L-theanine?
An amino acid found in tea leaves. TILT pairs it with caffeine to help keep your attention on the task.
Was TILT tested in these trials?
No. These trials used capsules and lab drinks at their own doses. TILT uses the same pairing in a 330ml can: 105.6mg of caffeine and 198mg of L-theanine.
What if I don't like it?
Your first order has a 100-day money-back guarantee. Tell us within 100 days and we refund it in full. You keep the cans, and the bonus pack is yours either way.
Do I have to stay subscribed?
No. Skip, pause or cancel online, anytime. A new slab arrives every 4 weeks until you do.
How fast does it ship?
Orders placed Monday to Friday are dispatched within 24 hours from Perth. Shipping on a slab is free.
What's in it?
Caffeine with L-theanine. Low sugar, naturally sweetened, no artificial colours or preservatives. The full panel is on every can and on the product page.
How much caffeine is in a can?
105.6mg in a 330ml can. One can a day. Not for kids, or for anyone pregnant, breastfeeding or sensitive to caffeine.
Built for the shift
Same pairing. Normal-sized can.
You don't need half a litre to get through the back half. You need to stay locked in, and you need it to taste good.
Try your first slab. If it's not for you within 100 days, you get your money back and keep the cans.
$81.99 delivered, with a Bonus Mixed 8 Pack on your first slab. 100 days to decide. Skip or cancel online, anytime.
About this page. This is an advertisement for TILT Energy. It was written by TILT and is not independent journalism. TILT was not tested in any study on this page, and the doses in those studies differ from a can of TILT. Contains caffeine. Not recommended for children, pregnant or lactating women, or individuals sensitive to caffeine. Consume no more than 1 can per day.