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Fatigue isn’t just running out of energy. In trained athletes, output often drops before fuel is exhausted or fitness is limited.
As Fatigue builds:
- Your body uses what it has less efficiently
- Reactions and responsiveness slow
- Output drops even though effort stays high
- You’re still working hard, but getting less back
EI8HT is designed to operate in this gap between the capacity your body has and what you can actually access when tired.
Most athletes don’t fade because they’re empty. They stop because fatigue gets in the way of going again.
EI8HT helps you use what’s already there under load so you can hold the peak when output would normally drop.
BEAT THE DROP
Science that supports effort — not hype
HOW EI8HT WORKS
In Simple Terms:
WHICH PACK IS RIGHT FOR YOU?
CORE PACK (14)
Built for redline sessions and race-day efforts.
The Core Pack is your entry into EI8HT. Designed for athletes who want performance support during high-effort training sessions and competition efforts.
Use on interval days, long efforts, and race days — not casual workouts.
MOST POPULAR
TRAINING BLOCK (30)
Designed for sustained high-intensity training and race preparation.
The Training Block is built for athletes in serious training phases.
Ideal for HYROX prep, endurance build blocks, and cycling thresholds.
Use across your hardest sessions to stay consistent under fatigue.
ONLY £1.80 PER SESSION
COMPETITION PACK (50)
Built for competition season and high-volume performance phases.
The Competition Pack is for athletes in-season.
Designed for multiple race weekends, heavy training volume, and sustained high-output demands.
Best value for serious competitors.
Beat the drop
Maintain output as fatigue builds.
Take before bed to support overnight recovery.
Most athletes don’t fade because they’re empty. They stop because fatigue gets in the way of going again.
EI8HT helps you use what’s already there under load so you can hold the peak when output would normally drop.
BEAT THE DROP
During Training or Competition
EI8HT is designed to sustain performance when fatigue builds in athletes.
After Late or intense Sessions
HOW ATHLETES USE EI8HT
In Simple Terms:
SHOP NOW
HOW EI8HT WORKS
Science that supports effort — not hype
Fatigue isn’t just running out of energy. In trained athletes, output often drops before fuel is exhausted or fitness is limited.
As Fatigue builds:
- Your body uses what it has less efficiently
- Reactions and responsiveness slow
- Output drops even though effort stays high
- You’re still working hard, but getting less back
EI8HT is designed to operate in this gap between the capacity your body has and what you can actually access when tired.
In Simple Terms:
Most athletes don’t fade because they’re empty. They stop because fatigue gets in the way of going again.
EI8HT helps you use what’s already there under load so you can hold the peak when output would normally drop.
BEAT THE DROP
Why athletes use EI8HT
Most athletes lose performance, not because they have run out of fuel but because it's harder to access when fatigue starts to build.
EI8HT supports how your body utilises available capacity under load, helping sustain peak output when it would normally decline.
When it matters
EI8HT is used when:
The pace starts to feel uncomfortable
Intensity stays high
Focus begins to fade
Effort is there, but output isn’t
That’s when the difference shows up — between backing off and staying in it.
A catalyst, not a shortcut
EI8HT doesn’t replace training. It doesn’t bypass fatigue. It doesn’t add artificial ability.
It’s used as a nutritional catalyst — helping the body respond better to effort when tired, by supporting use of:
Existing physiological capacity
Available energy and substrates
The nutrition already taken on
Used across training, competition, and recovery
EI8HT fits into:
Daily training
Key performance sessions
Races and matches
Recovery between hard efforts
Not as a crutch or shortcut— but as support when repeat effort matters.
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Hear What The Experts Think of EI8HT
I EXPERIENCED A NOTABLE IMPROVEMENT IN PERFORMANCE - SUSTAINED ENERGY AND DELAYED FATIGUE
— TRIATHLETE & COACH
IT'S INCREDIBLY EXCITING TO SEE RESEARCH UNDERTAKEN AT OXFORD TRANSFORMED INTO A COMMERCIAL PRODUCT THAT CAN HELP SO MANY PEOPLE
— PROF ELEANOR STRIDE Biomedical Engineer
University of Oxford
IN A WORLD WHERE A FEW SECONDS MAKES ALL THE DIFFERENCE, A 30 SECOND LEAD IS BOTH SURPRISING AND SIGNIFICANT.....
— DR DAVID KING Dr of Human Biology
Surrey University
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You ask, We answer
There are many benefits but here are a few important ones:
Better sleep quality
Increased energy levels
Faster recovery from exercise
Increased performance
Improve endurance
Mental alertness
Yes, providing you do not suffer from hypertension.
It can stay in your body up to 2 hours.
Yes. EI8HT sachets can be mixed with electrolyte drinks and carb/fuel mixes, which is particularly useful for cyclists and endurance athletes. They can also be safely combined with creatine or protein powder if preferred.
Yes, it's the only available supplement with this technology.
Yes.
Twin Pack
£10
£5 Per Sachet
Most Popular
7 Pack
£25
You save £10
£3.57 Per Sachet
Best Value
14 Pack
£45
You save £25
£3.21 Per Sachet
