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What's inside. Every ingredient in a DIAL 50 pouch, and why it's there.

Caffeine, L-theanine and taurine at real, printed doses, plus a sugar-free sweetener and a cool wintergreen finish. Here's what each one is, where it's found in nature and what it does.

Explore the ingredients Shop DIAL 50

Dietary supplement, Sugar-free, Nicotine-free, Gum-friendly

Fresh green tea bushes rising along a hillside into soft white mist

Tea leaves naturally contain both caffeine and L-theanine.

Per pouch15 pouches per can

CaffeineEnergy100 mg
L-theanineFocus50 mg
TaurineAmino acid25 mg
XylitolSweetenerSugar-free

The ingredients

What each one does.

Pick an ingredient to see what it is, where it's found in nature and what it does, in plain English.

Fig. 01Coffee cherries on the branchCoffea

Energy

100 mg

Caffeine

The same stimulant that's in coffee and tea, at a measured dose that's printed right on the lid.

What it is: A naturally occurring stimulant found in dozens of plants.
Found in: Some of the world's favorite drinks and treats.
Coffee beans
Tea leaves
Cacao
Guarana
Yerba mate
What it does: Through the day, a compound called adenosine builds up and tells your brain you're tired. Caffeine blocks that signal, which helps you feel alert and energized^*.
Per pouch: 100 mg, roughly what's in an 8-oz cup of brewed coffee.
Good to know: Everyone processes caffeine differently. New to it? Start with one pouch, and skip it late in the day if caffeine affects your sleep.

Fig. 02Fresh tea leavesCamellia sinensis

Focus

50 mg

L-theanine

An amino acid found naturally in tea leaves, and caffeine's classic partner.

What it is: An amino acid that occurs naturally in the tea plant.
Found in: Tea from the Camellia sinensis plant.
Green tea
Black tea
Oolong tea
White tea
What it does: Pairs with caffeine to support calm, clear focus^*.
Per pouch: 50 mg, paired 2:1 with caffeine.
Good to know: A cup of tea naturally contains both caffeine and L‑theanine. DIAL 50 pairs them in every pouch.

Fig. 03A scallop shell on the shore

Amino acid

25 mg

Taurine

An amino acid your body already makes, with some of its highest levels in the heart.

What it is: A naturally occurring amino acid, and one of the most plentiful in the human body.
Found in: Mostly animal foods, with shellfish near the top of the list.
Scallops
Mussels
Clams
Fish
Dark-meat poultry
What it does: Your body uses it in everyday processes, like helping cells keep water and minerals in balance^*, and it helps maintain healthy blood pressure already within the normal range^*. It's most concentrated in the heart, muscle and eyes.
Per pouch: 25 mg, alongside 100 mg caffeine and 50 mg L‑theanine.
Good to know: Most plant foods have little or no taurine, but your body can make its own from other amino acids.

Fig. 04Birch, a common commercial source of xylitolBetula

Sweetener

Sugar-free

Xylitol

The sweetener that keeps every pouch sugar-free.

What it is: A sugar alcohol, and a common toothpaste ingredient. Despite the name, it's neither sugar nor the alcohol in drinks.
Found in: Small amounts occur in many fruits and vegetables. It's commonly made from birch or corn.
Plums
Strawberries
Cauliflower
What it does: Adds sweetness with 0 g of sugar, for a fresh, clean finish.
Per pouch: 0 g sugar.
Good to know: Xylitol is about as sweet as table sugar, which is why it's a staple in sugar-free gum and mints.

FlavorGaultheria procumbens

Wintergreen

Named for a low evergreen plant with glossy leaves and bright red berries. It gives every pouch a crisp, cool-mint finish, with no sting or burn.

Better together

Why caffeine and L-theanine?

Caffeine brings the lift. L-theanine, an amino acid found in tea leaves, rounds it out for a smoother, more focused lift^*.

Caffeine: 100 mg
L-theanine: 50 mg

100 mg · Caffeine
Alert and energized^*
The lift, for the days that ask for more.
50 mg · L-theanine
Calm, clear focus^*
Rounds out the lift so you can lock in.
0 g · Sugar
Nothing extra
No sugar, and every dose printed right on the lid.

Deep work

Study sessions

Long work days

In published research, people who took caffeine and L‑theanine together scored better on attention tasks^*^1–7 and rated themselves more alert^*^2,4,6 than with a placebo. What each study found

Caffeine, in context

How much is 100 mg?

One pouch next to typical 12-oz drinks, using the FDA's published figures.

Caffeine · mg per 12 fl oz

Typical range
Typical amount
One DIAL 50 pouch

DIAL 501 pouch100 mg

Green tea12 fl oz37 mg

Black tea12 fl oz71 mg

Caffeinated soft drink12 fl oz23–83 mg

Energy drink12 fl oz41–246 mg

Brewed coffee12 fl oz113–247 mg

One pouch (100 mg) sits below the FDA's typical range for a 12-oz cup of brewed coffee (113–247 mg).

Source: U.S. Food and Drug Administration, “Spilling the Beans: How Much Caffeine Is Too Much?” (opens in a new tab). Typical amounts in 12-fluid-ounce drinks; actual caffeine varies by brand and preparation.

Try DIAL 50.

Same wintergreen can. 100 mg per pouch. Every order ships free.

Shop DIAL 50

One-time purchase · Free shipping

Sources

References

Peer-reviewed research on caffeine and L‑theanine taken together. Each study tested its own doses, listed with it, not DIAL 50 itself.

What each study found

Owen GN, Parnell H, De Bruin EA, Rycroft JA. The combined effects of L‑theanine and caffeine on cognitive performance and mood. Nutr Neurosci. 2008;11(4):193-8.
Tested 50 mg caffeine + 100 mg L‑theaninedoi:10.1179/147683008X301513 (opens in a new tab)
Haskell CF, Kennedy DO, Milne AL, Wesnes KA, Scholey AB. The effects of L‑theanine, caffeine and their combination on cognition and mood. Biol Psychol. 2008;77(2):113-22.
Tested 150 mg caffeine + 250 mg L‑theaninedoi:10.1016/j.biopsycho.2007.09.008 (opens in a new tab)
Kelly SP, Gomez-Ramirez M, Montesi JL, Foxe JJ. L‑theanine and caffeine in combination affect human cognition as evidenced by oscillatory alpha-band activity and attention task performance. J Nutr. 2008;138(8):1572S-1577S.
Tested 50 mg caffeine + 100 mg L‑theaninedoi:10.1093/jn/138.8.1572S (opens in a new tab)
Giesbrecht T, Rycroft JA, Rowson MJ, De Bruin EA. The combination of L‑theanine and caffeine improves cognitive performance and increases subjective alertness. Nutr Neurosci. 2010;13(6):283-90.
Tested 40 mg caffeine + 97 mg L‑theaninedoi:10.1179/147683010X12611460764840 (opens in a new tab)
Einöther SJ, Martens VE, Rycroft JA, De Bruin EA. L‑theanine and caffeine improve task switching but not intersensory attention or subjective alertness. Appetite. 2010;54(2):406-9.
Tested 40 mg caffeine + 97 mg L‑theaninedoi:10.1016/j.appet.2010.01.003 (opens in a new tab)
Camfield DA, Stough C, Farrimond J, Scholey AB. Acute effects of tea constituents L‑theanine, caffeine, and epigallocatechin gallate on cognitive function and mood: a systematic review and meta-analysis. Nutr Rev. 2014;72(8):507-22.
Tested Review of 11 placebo-controlled trialsdoi:10.1111/nure.12120 (opens in a new tab)
Kahathuduwa CN, Dassanayake TL, Amarakoon AMT, Weerasinghe VS. Acute effects of theanine, caffeine and theanine-caffeine combination on attention. Nutr Neurosci. 2017;20(6):369-377.
Tested 160 mg caffeine + 200 mg L‑theaninedoi:10.1080/1028415X.2016.1144845 (opens in a new tab)

What's inside. Every ingredient in a DIAL 50 pouch, and why it's there.

What each one does.

Caffeine

L-theanine

Taurine

Xylitol

Wintergreen

Why caffeine and L-theanine?

Alert and energized*

Calm, clear focus*

Nothing extra

How much is 100 mg?

Try DIAL 50.

References

Alert and energized^*

Calm, clear focus^*