Swiss pre-race science

60 minutes.
8 stations.
One shot before you start.

Get the Pre-Activity Shot

Formulated to support normal energy metabolism and to help reduce tiredness and fatigue, with magnesium, B vitamins and vitamin C. One 60ml shot, 30 to 60 minutes before you start. Not a gel.

The science
4.87 · 675 reviews
“The runs between stations felt manageable and I didn't hit the wall at the wall balls.”Emma Verhoeven “The first thing that gave me a steady heart rate across all 8 stations.”Thomas De Wilde “Steady the whole way, and I actually had energy for the last run between stations.”Sarah Thompson “Went from 1:18 to 1:04 in a year. The engine is finally starting to hold.”Kevin O'Brien “No crash, just steady energy across the whole session.”Jasper Nielsen “My heart rate stays lower for the same pace on the runs.”Robert Meijer
Cart
Pre-Activity Shot
Pre-Activity Shot
Pre-Activity Shot
Pre-Activity Shot
Pre-Activity Shot
Pre-Activity Shot
Pre-Activity Shot
Pre-Activity Shot

Pre-Activity Shot

Your pre-race shot, in 60ml.

A Swiss formula for race day and hard sessions, taken 30 to 60 minutes before you start. Magnesium and B vitamins contribute to normal energy-yielding metabolism.

  • Magnesium contributes to normal muscle function
  • B vitamins and vitamin C help reduce tiredness and fatigue
  • Caffeine helps increase alertness and concentration
Aantal dozen 1

Delivery frequency

€29,90
  • High caffeine content. Not recommended for children or pregnant or breastfeeding women.
  • Ships within 24 hours
  • 30-day money-back guarantee on your first order

Dit product is beperkt houdbaar. Consumeer vóór januari 2027.

How do I take the Pre-Activity Shot?

One 60ml shot 30 to 60 minutes before you start. On race day, drink it as your warmup begins. Shake well and drink cold.

How often should I drink OLEUS?

Take Pre-Activity before races and hard sessions, one shot per day at most. On other days, OLEUS Daily fits your morning routine.

Can I pause or cancel my subscription?

Anytime, from your account. No calls, no forms: pause, skip or cancel in one click.

The problem

You trained the stations. You trained the runs. Nobody trained your fuel.

Months of prep. SkiErg intervals, sled sessions, tempo runs on tired legs. Then race morning comes and the fuel plan is a gel from a friend, a pre-workout scoop, and pasta the night before. Hyrox rewards the engine that holds. Not the athlete who went out fastest.

  1. Went out too hot at the start

    Sub-60 pace on paper. Cooked calves after the sled push. The whole plan falls apart before station four, and the runs between stations turn into damage control.

  2. Gut goes at the wrong moment

    The warmup gel is still sitting there at the burpee broad jumps. The pre-workout hits and fades. Station five turns into survival instead of a target split.

  3. Nothing left for the wall balls

    The carb load carried you to the row. Then the drop. Legs go, heart rate spikes, and the 100 wall balls that were supposed to be where you empty the tank turn into a fight for the finish.

Shop now
You trained the stations. You trained the runs. Nobody trained your fuel.

How it works

What each ingredient is there for.

Energy

Eight stations and eight runs demand more from your energy system. B vitamins and vitamin C contribute to normal energy-yielding metabolism and to the reduction of tiredness and fatigue.

Focus

Hybrid racing tests your focus as much as your legs. The caffeine from guarana helps increase alertness and improve concentration. High caffeine content. Not recommended for children or pregnant or breastfeeding women.

Muscles

From the sled push to the wall balls, magnesium contributes to normal muscle function and to electrolyte balance.

Shop now

Trusted by 10,000+ athletes.

Excellent 4.87 based on 675 reviews
Thomas De Wilde

Pre-Activity Shot

Roadtosub60 for two years and my nutrition was the missing piece. Gels wrecked me at Mechelen, pre-workout crashed me at Amsterdam. Pre-Activity is the first thing that gave me a steady heart rate across all 8 stations. Held 4:15 pace on the runs after the sled push. 58:47 in Rotterdam. Sub 60 finally.

Antwerp, Belgium

Emma Verhoeven

Pre-Activity Shot

Onze eerste Hyrox and I was scared to blow up on the SkiErg like I did in training. My friend swore by OLEUS so I took one before the warmup. The runs between stations felt manageable and I didn't hit the wall at the wall balls. 1:26:14 for our first one and I'm already signed up for Utrecht.

Ghent, Belgium

Sarah Thompson

Pre-Activity Shot

Trained for four months and was terrified of the wall balls. My coach told me to try Pre-Activity 45 minutes before the gun. Steady the whole way, and I actually had energy for the last run between stations. 1:22 for a first-timer and no gel gut. Doing Manchester in March.

Bristol, UK

Nina van der Meer

Pre-Activity Shot

I'm the person who reads everything before buying. 4.87 stars, 675 reviews, and a formula that lists every dose on the label was what convinced me. Took Pre-Activity for three race simulations before Utrecht, then race day. First Hyrox at 1:18:22, no gut issues, no crash, and I finished the wall balls with something in the tank. Ordering again.

Utrecht, Netherlands

Kevin O'Brien

Pre-Activity Shot

Two years of CrossFit and my ego said Hyrox would be easy. First time I did it, my calves cooked after the sled push and I nearly walked the second half. Now I run three times a week and take Pre-Activity before every race and every long session. Went from 1:18 to 1:04 in a year. The engine is finally starting to hold.

Dublin, Ireland

Inside the shot

Six actives. Every dose on the label.

Oleuropein100mg

Standardised olive leaf extract. The signature OLEUS ingredient.

L-citrulline675mg

An amino acid, declared at full dose.

Acetyl-L-carnitine375mg

A form of carnitine, declared at full dose.

Magnesium56mg

Contributes to electrolyte balance and to normal muscle function.

Vitamin C40mg

Contributes to normal energy-yielding metabolism.

B vitaminsB1, B2, B3, B5, B6

Contribute to normal energy-yielding metabolism.

The subscription

More than a subscription.

Your race-day fuel arrives before the next start line.

  • Save 10% on every delivery, 15% from your 3rd order
  • Free shipping on orders over €70
  • Pause, skip or cancel anytime
Get the Pre-Activity Shot
More than a subscription.

Frequently asked questions

Take the Pre-Activity Shot 30 to 60 minutes before you start. On race day, drink it as your warmup begins. Shake well and drink cold.

No rush at the start line. The 80mg of caffeine from guarana helps increase alertness and improve concentration, and magnesium, B vitamins and vitamin C contribute to the reduction of tiredness and fatigue. High caffeine content. Not recommended for children or pregnant or breastfeeding women.

A gel is designed to be taken during the effort. Pre-Activity is taken 30 to 60 minutes before you start, and its magnesium, B vitamins and vitamin C contribute to normal energy-yielding metabolism. Nothing to carry or chew mid-race.

One 60ml shot with olive leaf extract (100mg oleuropein), caffeine from guarana (80mg), L-citrulline, acetyl-L-carnitine, magnesium, and B and C vitamins. Neutral flavour with a hint of blueberry and a mild bitterness from the olive leaf extract. Best served chilled.

High caffeine content. Not recommended for children or pregnant or breastfeeding women. A food supplement is not a substitute for a varied, balanced diet and a healthy lifestyle.

We ship across Europe from our warehouse, with orders dispatched within 24 hours. Shipping is free on orders over €70.

Every batch is formulated and lab-tested in Switzerland. The full active list and doses are disclosed on the label and in the ingredient section above.