Trail running caffeine, without gels or cans−20% with a subscription30-day refund, even with the jar emptyFree delivery from €50
180 mgper dose 0 gof sugar 2capsules

For runners who plan their race caffeine.

Trail running caffeine, without gels or cans. Two capsules. You know how much.

A coffee at the start. A gel at kilometre fifteen. A cola at the aid station. By kilometre forty, nobody knows how much caffeine they’ve had.

  • 30-day refund
  • No commitment
  • Delivered to your door
  • 0 taste
  • 0 packaging
  • Not listed WADA
Trail running caffeine, without gels or cans.

You count the kilometres and the elevation. Count the caffeine too.

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Not one more gel

By kilometre thirty, sweet things don’t always go down. A capsule has no taste.

The figure before the start

180 mg of caffeine, written on the jar. You know what you’ve had, and you take it whenever you want.

Nothing sticky, nothing leaking

Two capsules in a vest pocket. No wrapper to carry until the aid station.

Your race caffeine, in a jar.

Zénith

Two capsules in a vest pocket. 180 mg of caffeine, written on the jar. No taste, no sugar.

  • 180 mg of caffeine, written on the jar: the figure before the start.
  • Zero sugar, zero taste, nothing sticky.
  • Caffeine is not on the WADA Prohibited List.
  • 560 mg of vitamin C. Vitamin C contributes to the reduction of tiredness and fatigue.
How long are you giving yourself?
For how many people? Take more. Pay less.
Subscription and savings:

Discount applied automatically

  • 30-day refund
  • Secure payment
  • French brand, based in Vannes
What’s in a dose

Vitamin C 560 mg (700% of the reference intake) · Taurine 400 mg · Caffeine 180 mg · Guarana seed extract, which also contains a little caffeine: we are having the total content checked by the laboratory before the first sale.

The full ingredient list is five lines long: L-ascorbic acid, taurine, caffeine, guarana seed extract, capsule shell (pullulan). No other ingredient is declared, and there is no proprietary blend: every milligram is written next to its name.

When to take it

Two capsules with water, whenever you choose. EFSA puts peak caffeine levels in the blood at between 30 and 120 minutes after intake.

The half-life ranges from 2 to 8 hours: what you take in the evening is still there after the finish. Do not exceed the stated recommended daily dose.

The jar, and how long it lasts

60 capsules, that's 30 doses, or thirty mornings. Plant-based capsule (pullulan), gelatine-free.

French brand, based in Vannes. The contract manufacturer and its certificate will be named here from the first production run. The batch number and best-before date are printed under the jar: they are what let you request the analysis of the batch you have in your hands.

Who should not take it

High caffeine content: 180 mg per dose. Not recommended for children or pregnant or breast-feeding women, nor for teenagers or people sensitive to caffeine.

If you are taking any treatment, ask your doctor or pharmacist for advice. Food supplements should not be used as a substitute for a varied diet and a healthy lifestyle.

Delivery, subscription, refund

Free delivery from €50 in France. The subscription can be paused, rescheduled or cancelled in one click from your account, without having to write to anyone.

Thirty mornings to judge, with the jar finished if need be. One email to bonjour@tropik.so is enough and we refund you.

How it works

Three steps, and none to remember.

  1. Choose your size

    Thirty, sixty, ninety or one hundred and eighty doses.

  2. Slip two capsules into your vest

    No wrapper, nothing sticky.

  3. Time your intake

    At the start or before the section you choose, with a sip from your flask.

Verifiable

What’s written, and where to check it.

  • Caffeine 180 mg · taurine 400 mg · vitamin C 560 mg · guarana 60 mg
  • Zero sugar, zero sweeteners, zero taste
  • Caffeine not on the WADA Prohibited List
  • 30-day refund, even with the jar empty

Versus the aid station

Three kinds of race caffeine.

The same molecule. Not the same weight in your pocket.

The only one whose figure you know before the start.

Comparaison de Zénith, A caffeinated gel et A cola at the aid station.
Criterion Zénith A caffeinated gel A cola at the aid station
Caffeine dose 180 mg, written down depends on the gel rarely shown
Taste none sweet, flavoured sweet
Sugar 0 g yes yes
In your pocket two capsules one sachet per serving only at the aid station

You be the judge

Thirty mornings to make up your mind.

180 mg of caffeine per dose of two capsules, written on the jar. You know what you’ve had, and when.

And 560 mg of vitamin C. Vitamin C contributes to the reduction of tiredness and fatigue.

Choose my size

Before you decide

The questions people really ask us.

When should I take it?

EFSA puts the peak in the blood at between 30 and 120 minutes after intake. It's up to you to choose the moment in the race.

And on a night trail?

The half-life ranges from 2 to 8 hours: what you take in the evening is still there after the finish. Bear it in mind for recovery.

I already take caffeinated gels

Add it all up: gels, cola, coffee, capsules. Keep EFSA's benchmark of 400 mg a day in mind.

Capsule or caffeinated gel?

The same caffeine. The capsule has no taste and its dose is written down: 180 mg for two capsules.

Is caffeine banned in competition?

No. It is not on the WADA Prohibited List; it is included in WADA's monitoring programme.

For road running too?

Yes: the calculation is the same, whatever the distance.

What does it cost?

€29.90 for thirty doses, that's €1.00 a dose. €0.70 a dose with the 180 size, in a single delivery.

What’s the maximum amount of caffeine per day?

EFSA sets the benchmark at 200 mg for a single intake and 400 mg a day for a healthy adult. One dose of Zénith: 180 mg.

Who should not take it?

High caffeine content. Not recommended for children or pregnant or breast-feeding women, nor for teenagers or people sensitive to caffeine.

Is it a medicine?

No. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

Thirty mornings

Thirty days. Or we refund you.

One email is enough, even with the jar empty.

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