Award-Winning Taste
Essential hydration that's smooth & refreshing - not salty or sickly sweet
Long-Term Brain Health
Focus in 30 minutes. Lasting up to 5 hours. Clarity without caffeine.
Total Body Balance
Support lean muscle, everyday strength and faster recovery.
Two Products. One Daily Edge.
HIRO Hydration and SIGNAL - two evidence-backed daily supplements, combined into one simple routine. Together they support rapid hydration, sharper thinking, and faster mental focus. Backed by science. Built for everyday life.
Each tablet contains sodium, potassium, and chloride - the core electrolytes that drive hydration at a cellular level. Together, they optimise water transport through your body so you feel rehydrated faster, not just full of fluid.
Even mild dehydration can impact concentration and mood. With magnesium and potassium supporting nerve and muscle function, HIRO helps sustain steady energy and sharper focus - especially through long afternoons or travel days.
Low electrolyte levels are a common trigger for headaches, cramps, and fatigue. HIRO’s balanced mineral mix restores what’s lost through sweat and stress, helping to relieve that heavy, drained feeling.
Most cognitive ingredients work slowly, if at all. Zynamite® is different — shown in clinical trials to activate within 30 minutes, sharpening attention and processing speed for up to 5 hours. No stimulants, no crash.
Your brain uses around 20% of your body's energy. Cognizin® citicoline supports that demand directly, helping maintain healthy brain cell function and steadier mental energy through the day.
Most ingredients maintain cognitive function. Lion's Mane builds it. Its bioactive compounds stimulate Nerve Growth Factor (NGF), supporting neuron growth, repair and connectivity — a foundation for long-term brain health, not just a daily lift.
Your Hydration & Signal Journey
What to expect over time
Hydration and SIGNAL work on different timelines. HIRO's electrolytes act within minutes. SIGNAL sharpens focus within the hour, then builds cognitive resilience over weeks. Follow the timeline to see how the two work together as one daily habit.
Hydration & Focus Hit First
- HIRO electrolytes get to work within minutes
- SIGNAL's Zynamite® activates within 30 minutes, sharpening focus
- Headaches, cramps and fatigue ease off
- Cogniizin® and Lion's Mane begin their steady daily build
Building the Base
- Consistent hydration supports steadier daily energy
- Afternoon brain fog becomes noticeably less frequent
- Focus holds for longer stretches without the mid-morning dip
- The habit is forming — hydrate, take SIGNAL, get on with the day
The Shift
- Mental clarity and concentration hold through the full afternoon
- Energy feels more even, with fewer peaks and slumps
- Recovery from long days and poor sleep feels quicker
- Hydration and SIGNAL habits are fully embedded
The Compound Effect
- Lion's Mane and Cognizin® supporting long-term cognitive resilience
- Sharper thinking on demand, backed by steady daily hydration
- Focus sustained, energy stable, fewer off days
- Hydration and SIGNAL working as one seamless daily system
CUSTOMER TESTIMONIALS
Cognitive Function
Fuels the brain's high-energy demands - supporting sharper thinking, clearer focus, and sustained mental energy throughout the day.
Fewer Brain Fog Moments
Cognizin® and a full B-vitamin complex support neurotransmitter production and brain energy metabolism — the two leading drivers of mental fog.
4x Hydration
4x more effective hydration than with water alone.
Essential Electrolytes
Contain all 6 key electrolytes for optimum and efficient re-hydration.
Sharper Focus, No Stimulants
Zynamite® activates within 30 minutes, delivering clinical-grade focus that holds for up to 5 hours — with no caffeine dependency.
Immune Support
Reduces inflammation and bolsters your immune system.
| Nutrient | Per serving (2 tablets) |
% NRV |
|---|---|---|
| Potassium | 300mg | 15% |
| Chloride | 180mg | 23% |
| Magnesium | 65mg | 17% |
| Zinc | 2mg | 20% |
| Manganese | 0.4mg | 20% |
| Sodium | 116mg | N/A |
| Nutritional Information |
Per serving (2 tablets) |
|
| Energy | 84KJ | |
| 20kcal |
The Best Electrolytes I've Tried...
All the electrolyte flavours are amazing. Highly effective supplements that do a fantastic job at hydrating and replenishing fatigued muscles. I cannot recommend these enough.
Khadija S.
Verified Buyer
I tend to be quite selective with supplements I recommend, particularly in a category like creatine where quality can vary. What I like about Clean Creatine is its simplicity — it’s just pure, micronised creatine monohydrate with no unnecessary additions. It mixes easily, is well tolerated, and fits seamlessly into a daily routine. For both active individuals and those looking to support cognitive function, it’s a reliable, evidence-based option.
Alex Webb
Registered Nutritionist
Actually noticed a difference within a week
I've tried a few nootropics over the years and most felt like expensive placebos. SIGNAL is different — I noticed sharper focus in the afternoons within the first few days, which is exactly when I normally hit a wall. Six weeks in and the brain fog that used to derail my mornings is genuinely less frequent. I take it with my HIRO hydration every morning. Feels like a proper routine now.
Rachel M.
Verified Buyer
Lush
Wow 🤩 lovely flavour and I had 2 before a meal and drinks out and I was refreshed with no stomach acid all night and the next day will definitely be buying more 😊.
Catriona V.
Verified Buyer
Most people don’t need a ‘fancy’ creatine — they need one they’ll actually take every day. Clean Creatine strips it back to what matters: purity, consistency, and usability. It dissolves well, has no taste, and integrates easily into whatever routine someone already has. It’s a solid option for anyone looking to support strength, recovery, or general performance without overthinking it.
Gareth
Personal Trainer
Delicious And Hydrating!
I have tried loads of these hydration type supplements as I have an ileostomy and have to use them everyday . These are very effective and delicious!
Christopher D
Verified Buyer
HOW TO USE: HYDRATION & SIGNAL
Two products. One daily habit.
Drop two Hydration tablets into approximately 300ml of water, allow them to dissolve, and drink. Take two SIGNAL capsules alongside your drink — ideally in the morning or early afternoon as part of the same routine.
Make it a daily habit. Morning works well as a simple anchor: prepare your Hydration, take your SIGNAL, and get on with your day. SIGNAL is taken separately as capsules, so there’s nothing extra to mix.
What's in your stack
Two Products, Built for Daily Use
60-DAY RISK-FREE PROMISE
Frequently Asked Questions
About HIRO
HIRO creates premium daily wellbeing products designed to simplify modern nutrition. Our formulations focus on carefully selected ingredients, meaningful dosages and thoughtful formulation.
What is HIRO?
HIRO is a wellness brand focused on creating high-quality daily nutrition products designed to support hydration, energy and overall wellbeing.
Our products simplify complex supplement routines by combining carefully selected ingredients into convenient daily formats.
What makes HIRO different from other supplement brands?
Many supplements focus on long ingredient lists but contain extremely small amounts of each ingredient.
HIRO focuses on carefully balanced formulations that prioritise potency, efficacy and bioavailability rather than simply maximising ingredient count.
Do HIRO products use clinically studied ingredient levels?
Where possible, HIRO formulations aim to reflect ingredient levels supported by scientific research.
This helps ensure ingredients are present at levels designed to deliver meaningful nutritional value.
What does bioavailability mean?
Bioavailability refers to how efficiently nutrients can be absorbed and used by the body.
The form of an ingredient, the surrounding nutrients and the formulation itself all influence bioavailability.
Why not simply include as many ingredients as possible?
More ingredients does not necessarily mean a better supplement.
Many products contain very long ingredient lists but include extremely small amounts of each ingredient.
HIRO focuses on thoughtful formulation and meaningful ingredient levels.
Can I take multiple HIRO products together?
Yes. HIRO products are designed to complement each other as part of a daily wellbeing routine.
How long before I feel the benefits?
Many people begin to notice benefits after 4–8 weeks of consistent use.
Where are HIRO products made?
HIRO products are developed in the United Kingdom and manufactured in European facilities that follow strict quality and food safety standards.
Are HIRO products safe for children?
HIRO products are not recommended for individuals under 18 years of age.
Can I take HIRO alongside medication?
If you are taking prescription medication or have a medical condition, consult your healthcare professional before introducing any new supplement.
Hydration Tablets
HIRO Hydration tablets are designed to support effective daily hydration with a balanced blend of electrolytes.
What are HIRO Hydration tablets?
HIRO Hydration tablets are effervescent electrolyte tablets designed to support effective hydration.
They contain six essential electrolytes that help replenish minerals lost through everyday life, exercise, travel and heat.
Why don't I just drink more water?
Hydration is not only about water intake.
The body also relies on electrolytes such as sodium and potassium to regulate how fluids move in and out of cells.
Adding electrolytes to water can help support more effective hydration during exercise, travel, hot weather or busy days.
Why add electrolytes to water?
Electrolytes help regulate fluid balance, muscle function and nerve signalling.
Maintaining electrolyte balance plays an important role in effective hydration.
Are the hydration tablets vegan and gluten free?
Yes. HIRO Hydration tablets are suitable for vegans and are formulated without gluten ingredients.
When should I take the hydration tablets?
Many customers take hydration tablets:
- in the morning
- before or after exercise
- during travel
- during hot weather
- after long days
Are hydration tablets only for athletes?
No. Hydration tablets can support everyday hydration for anyone with an active or busy lifestyle.
How do I take the hydration tablets?
Add two tablets to approximately 300ml of water. Allow them to dissolve fully before drinking.
How many servings are there in each tube?
Each tube contains 20 tablets which provides 10 servings.
Can I just use one tablet?
Yes. One tablet will produce a lighter flavour. However two tablets provide the full intended electrolyte serving.
Why is the serving two tablets?
The formula is designed so two tablets deliver the intended electrolyte balance and flavour profile.
Why does HIRO Hydration contain more potassium than sodium?
HIRO Hydration is designed for everyday hydration rather than extreme endurance sport.
Potassium plays an important role in fluid balance and normal muscle function.
Do the hydration tablets contain caffeine?
No. HIRO Hydration tablets are completely caffeine free.
Do the hydration tablets contain sugar?
HIRO Hydration contains a small amount of glucose which supports electrolyte absorption.
Can I drink HIRO Hydration every day?
Yes. HIRO Hydration tablets are designed for daily use.
Can hydration affect headaches or fatigue?
Mild dehydration can contribute to symptoms such as fatigue and headaches. Maintaining fluid and electrolyte balance can support overall wellbeing.
Can hydration support wellbeing during perimenopause?
Yes. Hormonal changes during perimenopause and menopause can affect how the body regulates fluid balance. Hot flushes, night sweats and disrupted sleep all increase fluid and electrolyte loss, which can contribute to fatigue, headaches and low energy.
Maintaining consistent hydration — with electrolytes, not just water — is a simple and effective daily habit that can support how you feel through this period.
SIGNAL Nootropic
SIGNAL is HIRO's advanced daily nootropic — a precise stack of clinically studied ingredients designed to support focus, mental clarity and long-term brain health. Two capsules a day, taken consistently, is all it takes.
What is SIGNAL?
SIGNAL is a daily nootropic capsule formulated to support cognitive performance. It combines five clinically studied active ingredients — Zynamite®, Cognizin®, TheaGreen® L-Theanine, Lion's Mane mushroom and Korean Ginseng — alongside a B-vitamin complex and zinc.
It is designed for anyone who needs sustained mental clarity, sharper focus and better cognitive resilience through demanding days.
What benefits does SIGNAL support?
SIGNAL is designed to support:
- sustained focus and concentration
- mental clarity and reduction of brain fog
- memory and recall
- calm, alert energy without overstimulation
- cognitive resilience under pressure
- long-term brain health
What are the key ingredients in SIGNAL?
SIGNAL is built around five clinically studied active ingredients:
- Zynamite® (mango leaf extract, 300mg) — supports fast-acting mental energy and focus
- Cognizin® (citicoline, 250mg) — supports memory, attention and brain health
- TheaGreen® (L-Theanine from green tea, 167mg) — promotes calm, alert focus
- Lion's Mane mushroom extract (125mg) — supports neurological health and cognitive resilience
- Korean Ginseng extract (100mg) — supports mental performance under stress
The formula is completed with Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid and Zinc — all contributing to normal cognitive and nervous system function.
What makes SIGNAL different from other nootropics?
Most nootropics on the market either rely on caffeine for a short-term lift, or use generic ingredients at doses too low to be clinically meaningful. SIGNAL uses only branded, patented actives — Zynamite® and Cognizin® specifically — at clinically relevant doses, with fully transparent labelling. No proprietary blends, no hidden doses.
Who is SIGNAL designed for?
SIGNAL is designed for anyone navigating a demanding daily life who wants their brain to work at its best consistently. It is particularly well suited to people experiencing brain fog, afternoon cognitive slumps, or difficulty sustaining focus through long days. It is suitable for vegans and vegetarians.
What is Zynamite®?
Zynamite® is a patented mango leaf extract (Mangifera indica) from Nektium, standardised to contain over 60% mangiferin — a naturally occurring polyphenol with well-documented effects on brain function.
Clinical research shows that a single dose produces measurable improvements in attention, processing speed, episodic memory and cognitive flexibility — with effects detectable within 30 minutes and lasting up to 5 hours. Unlike caffeine, Zynamite® works through a different mechanism in the brain, which means it delivers similar alertness and focus without jitteriness, elevated heart rate or the crash that follows a caffeine hit.
It is sustainably sourced as a by-product of mango cultivation.
What is Cognizin®?
Cognizin® is a patented, highly bioavailable form of citicoline from Kyowa Hakko, backed by over 16 years of clinical research. It is the only form of citicoline studied specifically in healthy adults — not just clinical populations.
Citicoline supports the production of phosphatidylcholine (essential for brain cell membrane health), acetylcholine (a key neurotransmitter for memory and learning) and brain energy metabolism. One study found a 13.6% increase in brain ATP in healthy adults after six weeks of daily use.
Notably, research has specifically demonstrated improvements in attention and cognitive performance in middle-aged women — making it particularly relevant for the life stage at which many HIRO customers are taking SIGNAL.
A separate 12-week clinical trial in adults aged 50 to 85 showed meaningful improvements in overall memory, particularly episodic memory. Cognizin® is vegetarian, allergen-free and non-stimulant.
What does Lion's Mane mushroom do?
Lion's Mane (Hericium erinaceus) is a medicinal mushroom with a growing body of research supporting its role in neurological health. It is associated with supporting neurogenesis — the brain's ability to maintain and develop nerve cells — as well as cognitive resilience over time.
Is SIGNAL a stimulant?
No. SIGNAL is not a stimulant. It does not rely on caffeine or stimulant compounds to produce its effects.
Zynamite® supports mental energy through a different mechanism to caffeine, and TheaGreen® L-Theanine actively promotes a calm, focused state. The result is clear-headed focus without jitteriness or a crash.
Does SIGNAL contain caffeine?
SIGNAL contains no added caffeine. The green tea extract (TheaGreen®) used in the formula contributes a negligible trace amount — well below any level associated with stimulant effects.
How do I take SIGNAL?
Take two capsules per day with water. Mid-morning works best for most people — after your natural cortisol peak, when your baseline alertness begins to taper and the ingredients can do the most work.
Each pack contains 56 capsules — a 28-day supply.
When is the best time to take SIGNAL?
We recommend around 11am — after your body's natural morning cortisol peak has begun to taper. This is when many people first feel their focus starting to dip, and the point at which SIGNAL's ingredients can make the most meaningful difference to clarity and concentration through the rest of your day.
How long before I notice results?
Some ingredients in SIGNAL — particularly Zynamite® and L-Theanine — can support focus and mental clarity relatively quickly. Others, such as Cognizin® and Lion's Mane, build their effects progressively with consistent daily use.
Most customers notice meaningful improvements in clarity and cognitive stamina within 2 to 4 weeks. Long-term benefits to brain health and resilience develop over months of consistent use.
Is SIGNAL suitable for daily long-term use?
Yes. SIGNAL is designed as a daily supplement intended for consistent, long-term use. The ingredients are selected to support cumulative cognitive health rather than short-term stimulation.
Is SIGNAL vegan?
Yes. SIGNAL capsules use hydroxypropyl methylcellulose (HPMC) — a plant-derived capsule shell. The formula contains no animal-derived ingredients and is suitable for vegans and vegetarians.
Does SIGNAL contain any allergens?
SIGNAL does not contain any of the 14 major allergens. It is free from gluten, dairy, soy, nuts and artificial additives.
Can I take SIGNAL with other HIRO products?
Yes. SIGNAL is designed to complement other HIRO products as part of a daily wellbeing stack. It works particularly well alongside HIRO Hydration tablets to support both mental and physical performance through the day.
Can SIGNAL help with brain fog?
Brain fog — that feeling of mental cloudiness, slow thinking or difficulty concentrating — is one of the most common reasons people try SIGNAL.
The formula addresses several of the underlying mechanisms associated with cognitive fatigue. Cognizin® supports neurotransmitter production tied to mental clarity. Zynamite® supports alertness without stimulants. Lion's Mane contributes to longer-term neurological resilience. And the B-vitamin complex, particularly B12 and B6, supports normal nervous system function.
Many of our customers are women in their 40s and 50s who notice brain fog worsening through perimenopause. While SIGNAL is not a medical treatment, consistent daily use alongside good sleep and nutrition can meaningfully support mental clarity during this life stage.
Can I take SIGNAL if I am pregnant or breastfeeding?
If you are pregnant or breastfeeding, we recommend speaking with your healthcare professional before introducing any new supplement.
Can I take SIGNAL alongside medication?
If you are taking prescription medication or have a medical condition, consult your healthcare professional before use.
Wellness & Supplement Questions
What are nootropics?
Nootropics are ingredients — plant extracts, nutrients or compounds — that support cognitive function, including focus, memory, mental clarity and brain health.
The term covers a wide spectrum, from well-studied branded ingredients like Cognizin® and Zynamite® through to herbs such as Lion's Mane and Ginseng that have been used for centuries in traditional medicine.
Quality nootropic supplements use ingredients at clinically studied dosages, are transparent about what they contain, and are free from proprietary blends that obscure how much of each ingredient you are actually getting.
What are electrolytes?
Electrolytes are minerals such as sodium, potassium and magnesium that help regulate hydration, muscle function and nerve signalling.
Do electrolyte tablets help hydration?
Electrolytes help regulate how fluids move through the body and support hydration.
What are superfood powders?
Superfood powders are concentrated blends of plant-based ingredients designed to support daily nutrition.
Do greens powders actually work?
The effectiveness of a greens powder depends on formulation quality, ingredient levels and bioavailability.
How should I choose a high quality supplement?
- ingredient quality
- clinically studied dosages
- bioavailability
- transparent formulation
General
Are any HIRO products safe for children?
We do not recommend HIRO to anyone under 18.
Can HIRO products help with weight loss?
Taking any supplement when on a restricted diet can help to give your body the nutrients it needs to keep on trucking. So if you are restricting your diet to lose weight or for any other reason, HIRO can help give your mind, body and guts what they're missing.
How long before I start to feel the effects of using HIRO products?
We are all different but if you take HIRO regularly you will start to feel the benefits after 1–2 months.
Do I need to take a break from HIRO products?
No, we don't believe you do.
Can I drink alcohol when taking HIRO products regularly?
HIRO is made for real people like us. We drink. We go out. We sometimes eat junk food. We take HIRO to offset.
Do HIRO products have to be used within a narrow time frame?
Our HIRO Superfood blends have a shelf life of 12 months.
Subscriptions
How does the subscription service work?
Select 'Subscribe & Save', add your product to your basket and checkout as normal. We'll then send you the same product every month. You can pause, cancel and update at any time.
Can I cancel anytime?
Yes you can. Just head over to your account page and manage your subscription from there.
Can I change how often I receive my products?
Absolutely. Head over to your account page and manage your subscription from there. You can change frequency to weeks or months.
Can I skip or pause my subscription?
Yes you can. Skip, pause or cancel at any time. Head over to your My Account page and log in. Once logged in, click on Manage Subscriptions. Here you can make any changes you like.
Delivery & Returns
Who do you use for delivery?
We use Royal Mail.
What's the difference between Standard and Express delivery?
- Standard delivery uses Royal Mail's 48hr tracked service. This means you'll get your order in 2–3 working days.
- Express delivery uses Royal Mail's 24hr tracked service. This means you'll get your order in 1–2 working days.
What if I don't like what I've received?
If you're not 100% satisfied with HIRO, please get in touch with us at [email protected] and we'll do everything we can to fix things for you.
Is your packaging recyclable?
Yes, our boxes are 100% recyclable and are made from recycled and sustainable materials.
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