O2B NRG-FX

O2B NRG-FX

Sustained energy and mental focus for busy days, demanding work and physical performance.

Supports energy, stamina and daily resilience
Supports mental alertness, clarity and concentration
Supports cardiovascular health and healthy circulation
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*20% off for stock with an expiry date of Oct 2026.

O2B NRG-FX is a comprehensive energy and focus formula designed to support physical stamina, mental alertness, motivation and healthy circulation.

O2B NRG-FX combines 12 active ingredients to support natural energy, mental focus, physical stamina and overall performance. Whether you're preparing for a workout, tackling a demanding day or looking for an extra boost in alertness and motivation, O2B NRG-FX provides targeted nutritional support for both body and mind.

Energy, alertness and mental performance

Guarana provides a natural source of caffeine to promote alertness, concentration and physical performance, while Panax ginseng is traditionally used to support stamina, vitality and resilience during demanding periods. Ginkgo biloba and Gotu kola complement these ingredients by supporting healthy circulation and cognitive function, while L-tyrosine provides a building block for neurotransmitters involved in attention, motivation and the body's response to stress.

Pre-workout performance and stamina

NRG-FX is a versatile pre-workout supplement designed to support physical and mental readiness before exercise. Combining Panax ginseng, guarana, L-arginine, taurine and other performance-focused nutrients, it supports alertness, stamina, healthy circulation and normal muscle function. Rather than relying on high levels of caffeine, NRG-FX takes a broader nutritional approach to supporting energy and performance, making it suitable for both active lifestyles and mentally demanding days.

Circulation and energy metabolism

Ginger and cayenne add warming botanical compounds that complement the formula's circulation-focused ingredients. Niacin (vitamin B3) plays an essential role in converting food into usable cellular energy, while chromium supports normal carbohydrate, fat and protein metabolism and helps maintain healthy blood-glucose regulation.

More than just a pre-workout

Unlike supplements designed solely for the gym, O2B NRG-FX brings together ingredients supporting both physical and cognitive performance. It's a versatile option for active people, athletes and anyone looking for additional support with energy, focus and stamina during physically or mentally demanding days.

What is O2B NRG-FX?

O2B NRG-FX is an adult energy and focus supplement containing energising herbs, amino acids, niacin and chromium.

It is designed to support physical stamina, cognitive performance, alertness, circulation and normal energy metabolism.

Does NRG-FX contain caffeine?

Yes. It contains naturally occurring caffeine from guarana.

How many capsules should I take?

Adults take one to two capsules daily, or as directed by a healthcare professional.

Begin with one capsule to assess your tolerance.

When is the best time to take NRG-FX?

Take it earlier in the day or before a mentally or physically demanding period.

Avoid taking it late in the afternoon or evening if caffeine affects your sleep.

Can I take it before exercise?

Yes, the formula is intended to support physical energy, stamina and performance.

Take it early enough to assess how it affects you, and do not combine it automatically with a caffeinated pre-workout product.

Can I take it for work or study?

It may suit adults wanting support for alertness, mental clarity and concentration during demanding work or study periods.

It does not replace sleep, regular breaks or adequate nutrition.

How quickly does it work?

The timing will vary between people and depends partly on caffeine tolerance, whether it is taken with food and individual sensitivity.

Will it feel like an energy drink?

NRG-FX contains caffeine but also includes herbs, amino acids, niacin and chromium.

Some describe the energy as smoother than an energy drink, but individual responses differ.

Can I take it with coffee?

Combining NRG-FX with coffee increases total caffeine intake.

Start with the product on its own and avoid additional caffeine until you understand how it affects you.

Can I take it with an energy drink or pre-workout?

It is best not to combine them without professional advice.

NRG-FX already contains caffeine from guarana, and stacking stimulant products may increase the risk of jitteriness, palpitations, anxiety, headaches and sleep disruption.

Does NRG-FX improve focus?

The formula includes ginkgo, gotu kola, Panax ginseng and L-tyrosine, which are included to support cognitive function, mental alertness and motivation.

What does L-tyrosine do?

L-tyrosine is an amino acid used to produce neurotransmitters including dopamine and noradrenaline.

It is commonly included in formulas supporting focus and performance during stressful or demanding tasks.

What does ginkgo contribute?

Ginkgo biloba is traditionally used to support healthy blood circulation and cognitive function.

People taking blood-thinning medicine should seek professional advice before use.

Why is Panax ginseng included?

Panax ginseng is traditionally used to support stamina, energy, vitality and resilience during physical or mental demand.

What does gotu kola do?

Gotu kola is traditionally used to support mental clarity, circulation and general vitality.

Why does the formula contain amino acids?

NRG-FX includes L-tyrosine, L-glutamine, L-arginine and taurine.

These amino acids support different aspects of neurological, muscular, circulatory and cellular function.

What does L-arginine do?

L-arginine is used by the body to produce nitric oxide, which supports normal blood-vessel function and circulation.

What does taurine do?

Taurine supports normal nervous-system, muscle and cellular function.

It is not a stimulant, although it is commonly included in energy and performance formulas.

What is chromium included for?

Chromium supports normal metabolism of carbohydrates, fats and proteins and contributes to normal blood-glucose regulation.

Each capsule provides 50mcg of chromium from chromium picolinate.

Can I take NRG-FX every day?

Regular users should review overall caffeine intake, sleep quality, blood pressure and whether they are relying on stimulants to compensate for ongoing exhaustion.

Is it suitable for people sensitive to caffeine?

People who become anxious, shaky, nauseated, restless or unable to sleep after caffeine should avoid it or discuss use with a healthcare professional.

Can I take it if I have anxiety?

Caffeine and stimulating herbs may worsen anxiety in some people.

Seek professional advice before use and stop taking it if it increases nervousness, agitation or panic symptoms.

Can I take it if I have high blood pressure?

The formula contains caffeine, ginseng, ginkgo and circulation-supporting ingredients that may be relevant to blood pressure or medication.

Can I take it during pregnancy or breastfeeding?

No. NRG-FX should not be taken during pregnancy or breastfeeding.

Is NRG-FX suitable for children or teenagers?

No. It is recommended for adults only and contains caffeine.

Can competitive athletes take it?

Athletes subject to drug testing should check their sporting organisation’s rules and consider independently batch-tested products.

The available information does not confirm sport-certification or batch-testing status.

Can NRG-FX replace sleep?

No.

Stimulants can temporarily increase alertness, but they do not replace the physical and cognitive recovery provided by sleep.

Suggested Dose:

Take 1-2 capsules as required or as directed by your healthcare professional for peak physical performance.

Cautions and Warnings:

  • This product contains caffeine (from guarana)
  • Do not exceed the recommended dose.
  • Recommended for adults only
  • Do not take if you are pregnant or breastfeeding
  • Ingredients may interact with some medications
  • Consult your healthcare professional before use if you are taking antidepressants, levodopa, blood thinning or blood pressure medications
Ingredient Amount Role in Energy & Mental Performance
Ginkgo Biloba Extract Equiv. to
1,000 mg
Traditionally used to support healthy circulation, memory and cognitive function
Guarana Extract Equiv. to
500 mg
Provides naturally occurring caffeine to support alertness, energy and mental performance
Panax Ginseng Extract Equiv. to
500 mg
Traditionally used to support energy, stamina, mental performance and resilience during periods of stress
Gotu Kola Extract Equiv. to
250 mg
Traditionally used to support cognitive function, mental clarity and healthy circulation
L-Tyrosine 100 mg An amino acid used to produce neurotransmitters involved in focus, alertness and the body’s response to stress
L-Glutamine 100 mg An amino acid that supports muscle, digestive and immune function
L-Arginine 100 mg Supports nitric oxide production, healthy blood flow and physical performance
L-Taurine 100 mg Supports normal nervous-system, cardiovascular and muscle function
Ginger Extract Equiv. to
25 mg
Traditionally used to support healthy digestion, circulation and digestive comfort
Cayenne 10 mg Traditionally used to support healthy circulation, digestion and thermogenesis
Niacin 5 mg Supports normal energy metabolism and healthy nervous-system function
Chromium Picolinate 0.4 mg
(equiv. to 50 mcg chromium)
Supports normal macronutrient metabolism and the maintenance of healthy blood-glucose levels
Encapsulating aids

Who is O2B NRG-FX for?

You may be trying to concentrate through an afternoon slump, push through a demanding training session or stay mentally sharp while balancing work, family and a long list of responsibilities. Reaching for another energy drink may feel easy, but the sharp rise and crash or the overly stimulated feeling may not be what you want.

O2B NRG-FX may suit:

  • Busy professionals wanting support for focus and sustained mental performance
  • People who struggle with the afternoon energy dip
  • Gym-goers, cyclists and active adults wanting pre-exercise support
  • People who want a capsule alternative to sugary energy drinks
  • Adults wanting energy support alongside healthy circulation

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What You Can Count On

Made By Us

We have made human and pet supplements in our purpose-built factory in Nelson, New Zealand since 2003.

Quality Control

Trust is important to us. We operate under compliance procedures verified by MPI and we lab test every product we make.

Free Shipping in NZ

We offer a factory direct overnight courier service to our New Zealand customers for FREE. No minimum order.

Made in Nelson, New Zealand

We’ve been manufacturing natural health supplements for over 20+ years in our purpose built facility. We take a nutrition based approach to health and believe that what you put in, is what you get out. That’s why we use natural ingredients and science backed formulations to develop our products, ensuring you get the highest quality products made locally.

What Our Customers Say

  • 5 stars: 8 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
A
Aaron R
Real focus and energy

NRG-FX absolutely does what it says. I find I can really focus, almost zen-like, and it really allows me to push my workouts. I don't like taking energy drinks so this is a much better alternative. I don't feel as 'jacked-up' as I would on those, this is a much more smooth energy. Has been super helpful for me.

R
Robbie- Nelson
Helps me a lot!

I have found that this product really helps me get through the day. Thanks O2B*

M
Mick & Jane
Great for more energy!

Both my husband and I take O2B NRG-FX each morning... We also take prior to mountain biking and the gym.

L
Lianne
Clear thinking & more energy!

I have stopped drinking espresso coffee and now take one capsules of O2B Caffeine.

S
Sally Anne
Great Product

Great product for the afternoon "lull's". Good pick me up.

T
Tim
Great energy boost!

I take one of these when I feel like my energy level needs a pick me up. I find it helps me get through the day at a consistent pace.*

T
TJ
Packs a Punch

Works really well and is definitely effective!*

K
Kirstie
Heaps of energy

I love your products :-) gives me heaps of energy while working at sea!