In ingredients we trust
Every ingredient earns its place. Not one filler. Not one shortcut. Not one compromise.
We searched high and low for a natural functional drink and found nothing that passed the test. So we built our own - working with leading experts in science, medicine, nutrition and botany to source the finest ingredients Mother Nature has to offer.
What follows is every ingredient in Authentic Brew. Where it comes from, what it does, and why it's here.
Ancient wisdom. Modern science. No Bull-ssshhh.
Authentic Brew is a living tonic - a unique, precision-brew formula that fuses thousands of years of botanical knowledge with cutting-edge nutritional science. Every ingredient is 100% naturally sourced from land and sea, chosen for three things: purity, potency and purpose.
No caffeine. No added sugars. No synthetics. No fillers. No additives. No artificials. Alcohol free, gluten free, vegan friendly. No compromise. Just the real stuff - exactly as Mother Nature intended.
100% natural
Precision-brewed
Science-backed
From land and sea
No synthetics
High potency
1000mg per can
The Authentic Brew Proprietary Blend
Six hero ingredients. Each one chosen for a specific purpose.
Together, they deliver functional energy for mind, body and soul.
| Ingredient | Dose per can | Primary function |
|---|---|---|
| Organic Reishi Mushroom Extract | 225mg | Stress resilience, immune balance, deep sleep |
| Organic Chaga Mushroom Extract | 225mg | Antioxidant defence, gut health, inflammation |
| Organic Lion’s Mane Mushroom Extract | 225mg | Cognitive function, memory, nervous system |
| Fermented Rhodiola Rosea Extract | 150mg | Stamina, mental focus, fatigue reduction |
| L-Theanine (from Green Tea Extract) | 150mg | Calm focus, sleep quality, stress relief |
| Hawthorn Essence | 25mg | Circulation, emotional resilience, heart health |
| Total Proprietary Blend | 1,000mg |
Medicinal mushrooms
Medicinal mushrooms
Organic, triple-extracted, vegan. The strongest medicinal mushrooms available on the UK market. Used by our ancestors for thousands of years — and now precision-brewed into every can.
Sourced from Bristol Fungarium, Somerset, UK
Lion's Mane
Hericium erinaceus
225mg per can
Known as "the brain mushroom" — and it earns the name.
Celebrated for centuries as a tonic for clarity, memory and nervous system repair. Lion's Mane contains hericenones and erinacines — compounds shown to stimulate Nerve Growth Factor (NGF), protecting against neurodegeneration and actively supporting brain cell regeneration.
Why it matters:
Contains compounds such as hericenones and erinacines, which may stimulate nerve growth and protect against neurodegeneration.
Benefits
- Enhances cognition, focus and mental clarity
- Improves memory and creative thinking
- Supports nervous system health
- Promotes gut-brain connection
Reishi
Ganoderma lucidum
225mg per can
The legendary "mushroom of immortality". Used in traditional Chinese medicine for thousands of years.
A superior adaptogen and immune modulator, Reishi calms the nervous system, reduces inflammation and improves sleep quality without causing drowsiness. It also supports heart health and helps the liver detoxify — grounding and expansive in equal measure.
Why it matters:
An adaptogen and immune-modulator, Reishi calms the nervous system, reduces inflammation, improves sleep quality, and strengthens long-term vitality.
Benefits
- Builds stress resilience
- Promotes deep, restorative sleep
- Balances immune response
- Supports heart and liver function
- Strengthens long-term vitality
Chaga
Inonotus obliquus
225mg per can
Wild and powerful. A protective force of nature, grown symbiotically on birch trees in cold climates.
Packed with polyphenols, betulinic acid and beta-glucans, Chaga defends against oxidative stress, soothes inflammation and nourishes digestion. Antioxidant protection at the cellular level — strengthening resilience from the inside out.
Why it matters:
Packed with polyphenols, betulinic acid, and beta-glucans that defend against oxidative stress, counteract inflammation, and nourish digestion.
Benefits
- Powerful antioxidant defence
- Supports immune health
- Soothes inflammation
- Promotes gut balance
Adaptogens & botanicals
Adaptogens and botanicals
Ancient roots, modern science.
Fermented Rhodiola
Rhodiola rosea — "golden root"
150mg per can
An ancient plant of strength and endurance — and our advanced fermentation process makes it even more powerful.
Fermentation converts Rhodiola's active compounds into highly bioavailable forms, amplifying its antioxidant, anti-inflammatory and neuroprotective effects. Crucially, these active compounds can cross the blood-brain barrier — entering brain tissue directly and exerting real effects on the central nervous system.
Why it matters:
Fermentation converts its active compounds into highly bioavailable forms, amplifying its adaptogenic and neuroprotective effects — allowing more to exert direct effects on the central nervous system.
Benefits
- Boosts stamina and endurance
- Enhances mental focus and clarity
- Reduces fatigue
- Builds stress resilience
- Improves mood and cognitive performance
Ginseng
Panax ginseng — "root of vitality"
Natural extract
Revered for centuries across every ancient healing tradition. The ultimate tonic for energy, clarity and resilience.
Rich in ginsenosides — naturally occurring compounds that support natural energy, mental clarity and whole-body resilience. Ginseng promotes balance and endurance across mind, body and soul without the crash that synthetic stimulants cause.
Why it matters:
Rich in ginsenosides. They help to support natural energy, mental clarity and overall resilience, also promoting balance and endurance across Mind, Body and Soul.
Benefits
- Enhances natural energy and stamina
- Supports mental clarity and focus
- Promotes stress resilience
- Supports healthy metabolism
- Powerful antioxidant protection
L-Theanine
From green tea — never synthetically produced
150mg per can
A true nervine. Gently restoring balance to an overworked mind and body.
Extracted from green tea leaves — never synthetically produced. L-Theanine increases alpha brain waves, the state of calm, alert rest. It crosses the blood-brain barrier to soothe the nervous system, enhance creative thinking and improve sleep quality. Calm focus without drowsiness.
Why it matters:
Theanine increases alpha brain waves — the state of calm, alert rest. It crosses the blood-brain barrier to soothe the nervous system and improve both creativity and deep sleep.
Benefits
- Promotes calm without sedation
- Enhances creative focus
- Reduces anxiety and stress
- Improves sleep quality
- Soothes the nervous system
Chamomile
Matricaria chamomilla
Natural extract
One of the most ancient botanicals known to mankind. Soothing, calming and restorative since the earliest civilisations.
Rich in apigenin and flavonoids that ease the mind, relax the body and soothe the soul. Chamomile works gently and synergistically with L-Theanine to wind the nervous system down naturally — preparing the body for genuine, restorative rest.
Why it matters:
Rich in apigenin and flavonoids that help ease the mind, relax the body and soothe the soul.
Benefits
- Promotes calm and relaxation
- Soothes digestion naturally
- Eases physical and mental tension
- Supports natural sleep readiness
- Gentle antioxidant protection
Hawthorn Essence
Crataegus spp.
25mg per can
Heart medicine — for the physical and the emotional heart. Revered in traditional medicine as a tonic for courage, compassion and resilience.
Hawthorn nourishes both the physical and emotional heart, strengthening circulation, easing tension and restoring emotional balance. This is the ingredient that enables your true self to shine — creating a deeper sense of connection with yourself and the world around you.
Why it matters:
This is near medicine for the heart, proven to improve vitality and wellness. Enabling your true self to shine.
Benefits
- Strengthens circulation
- Eases tension and anxiety
- Restores emotional balance
- Builds heart resilience
From the sea
From the Sea
Nourishment from the sea — and restoration of it.
Sourced from SeaGrown, Yorkshire coast, UK — pioneering seaweed specialists whose cultivation actively cleans the ocean and supports marine biodiversity. Over 55 marine species recorded on SeaGrown structures.
Sea Kelp
Laminaria digitata — SeaGrown, Yorkshire
Natural extract
A powerhouse sea vegetable revered for its mineral density and natural iodine.
Rich in magnesium, potassium, calcium and vitamin K. Kelp provides iodine, fucoidan and alginates — three compounds that support metabolism, digestion and overall vitality while helping to restore hormonal balance and strengthen bone density.
Why it matters:
Kelp provides iodine, fucoidan, and alginates — three compounds that support metabolism, hormone health, and overall vitality while delivering balance to metabolism and strengthening bone density.
Benefits
- Supports thyroid and metabolic health
- Improves cellular energy
- Natural detoxification support
- Aids gut health and weight management
- Skin and hormone balance
Sea Moss
Chondrus crispus — "multivitamin of the sea"
Natural extract
Packed with essential minerals that nourish the body at a cellular level. High in natural collagen-supporting compounds.
Sea Moss provides magnesium, potassium and natural polysaccharides that support energy, thyroid function and gut integrity. Also known for its contribution to hydrated, healthy skin — nourishment you can feel and see.
Why it matters:
Sea Moss provides naturally-occurring potassium, phosphorous, trace minerals and amino acids that support energy, thyroid function, and gut integrity and hydrate skin.
Benefits
- Supports natural energy production
- Nourishes skin, hair and nails
- Supports thyroid balance
- Promotes digestive comfort
Sea Lettuce
Ulva lactuca
Natural extract
A vibrant green marine plant rich in nutrients often missing from modern lifestyles and diets.
Packed with iron, magnesium and unique marine antioxidants that support energy, immunity and nervous system function. Sea Lettuce quietly does the work that modern diets often leave undone.
Why it matters:
Sea Lettuce is powered with iron, magnesium and unique marine antioxidants that support energy, immunity, and nervous system function.
Benefits
- Supports natural energy levels
- Promotes healthy digestion
- Antioxidant defence
- Supports mental clarity
Samphire
Crithmum maritimum — coastal superfood
Natural extract
A coastal superfood with natural electrolytes that nourishes from the inside out.
Rich in vitamins, minerals and plant compounds that support hydration, metabolism and cellular vitality. Samphire's natural electrolyte profile makes it an exceptional ingredient for sustained energy and recovery — the taste of the sea in its purest form.
Why it matters:
Rich in chlorine, mineral and rare compounds that help support hydration, metabolism, and cellular vitality.
Benefits
- Supports natural hydration
- Natural electrolyte balance
- Antioxidant support
- Supports metabolic wellness
- Promotes overall vitality
Digestive botanicals and natural tonics
Digestive botanicals and natural tonics
Trusted by ancient traditions. Precision-selected for every can.
Lemon Peel
Citrus limon
Natural extract
Ancient, zesty and deeply cleansing. Valued for centuries for its purifying and refreshing properties.
Rich in natural vitamin C, limonene and bitter compounds that support immunity, digestion and mental alertness. Lemon Peel also brings a gentle, natural brightness to the flavour — functional and delicious in equal measure.
Why it matters:
Rich in natural vitamin C, limonene and bitter compounds that support immunity, digestion and mental alertness while providing gentle antioxidant protection.
Benefits
- Supports immune function
- Enhances metabolic readiness
- Promotes mental clarity and mood
- Aids digestion and internal balance
- Natural antioxidant protection
Lemongrass
Cymbopogon citratus
Natural extract
Bright, citrusy and deeply refreshing. Used traditionally to cleanse, uplift and renew.
Contains citral and aromatic compounds that support digestion, mental clarity and a genuine sense of freshness. Valued in traditional medicine for its antioxidant, anti-inflammatory and antimicrobial properties — and a key contributor to Authentic Brew's distinctive flavour profile.
Why it matters:
Contains citral and terpene compounds that support digestion, clarity and a sense of refreshment, with anti-bacterial and anti-inflammatory properties.
Benefits
- Refreshes mind, body and soul
- Promotes mental clarity and alertness
- Lifts mood and energy naturally
- Antioxidant and anti-inflammatory
- Promotes digestive comfort
Quassia Wood
Quassia amara
Natural extract
A traditional bitter tonic celebrated for centuries for awakening digestion and inner vitality.
Quassia's intensely bitter quassinoids stimulate digestive readiness and support nutrient assimilation — used in ancient times for its anti-inflammatory and detoxification properties. The digestive system is where nourishment begins, and Quassia makes sure it works.
Why it matters:
Quassin and neoquassin stimulate digestive wellness and support nutrient assimilation with anti-inflammatory and detoxification properties.
Benefits
- Activates digestive readiness
- Aids nutrient absorption
- Encourages gut balance
- Supports natural detox pathways
- Promotes overall vitality
The living base
Fermented and natural foundations
The base that makes everything else work harder.
Organic Kombucha
Naturally fermented — "living tonic"
Organic, fermented
A living, breathing ferment — as natural as it gets. Known for centuries as a tonic for digestion and natural energy.
Contains probiotics, organic acids and polyphenols that support the gut microbiome, enhance digestion and provide gentle, sustained energy. Kombucha is the living heart of the Authentic Brew formula — a fermented foundation that makes every other ingredient more effective.
Why it matters:
Contains probiotics, organic acids and polyphenols that support gut health and balanced energy.
Benefits
- Supports gut microbiome balance
- Enhances digestion and reduces inflammation
- Provides gentle, natural energy
- Antioxidant protection
- Supports overall wellbeing
Grape Juice *
Vitis vinifera — a note on transparency
Natural base — no added sugar
We chose this ingredient with total transparency and a clean conscience — here's exactly why.
We use deionised grape concentrate as the natural, functional base of our precision-brew formula. Deionising removes colour and aroma compounds from grape juice, leaving a clean, neutral base that retains the grape's natural nutrients and mouthfeel — without excess sugars or additives.
This allows our botanical infusions and adaptogenic extracts to shine through clearly and cleanly. It provides natural structure, balance and gentle sweetness — with no added sugar and none of the synthetic alternatives found in mainstream drinks.
Why it matters:
We provide deionised grape concentrate as the natural, low-calorie sweetener — removing natural sugars to meet our pioneering ethos, without the need for any added sugar or synthetic additives.
Benefits
- Provides natural, clean energy
- Supports cognitive performance
- Rich in polyphenol antioxidants
- Aids hydration and electrolyte balance
- Zero added sugar — naturally sweet
*
At Authentic Brew, transparency and integrity are at the heart of everything we do, down to every ingredient we use.
We proudly use deionised grape concentrate within our formulation as the natural, functional base that provides the balance, structure and gentle sweetness to our pioneering brews, without the need for any added sugar or any synthetic additives you will find in mainstream.
Deionising removes colour and aroma compounds from grape juice, leaving a clean, neutral base that still retains the grape's natural nutrients and mouthfeel. This allows our botanical infusions and adaptogenic extracts to shine through clearly and cleanly, letting our unique flavours and functions lead the experience rather than excess sugars and additives.
Fun Fact
This ingredient was hand selected for all the reasons above and also to reduce waste: the deionised grape concentrate is produced from surplus European wine grapes that would otherwise go unused. Happy days!
The science, simply.
Modern life keeps most of us locked in states of high stress and overstimulation - fuelled by caffeine, added sugar, digital overload and relentless demands. Our brains spend too much time in high-alert Beta and Gamma states. We feel wired, anxious, exhausted and flat.
Authentic Brew works differently. Rather than adding more stimulation, our precision-brew formula is designed to guide you back into the natural brain states where you feel your best - calm, clear, creative and energised. Exactly as Mother Nature intended.
Beta / Gamma — where most of us are
High alert. Stressed. Reactive. Mentally overloaded. Fuelled by caffeine and synthetic stimulants.
Alpha — where Authentic Brew takes you
Calm. Clear. Alert. Creatively focused. Present. Natural, sustained energy with no crash.
Theta — deep restoration
Restorative sleep. Deep recovery. The state where mind, body and soul genuinely rebuild.
Every ingredient in Authentic Brew is selected to support this natural rhythm - helping you perform when you need to, and recover when you should. Mind, body and soul in harmonious flow.
And just to be crystal clear about what's not in it.
Feed your authentic
Now you know what's in it.
Time to feel what it does.
17 natural ingredients. One precision-brew formula. Functional energy for mind, body and soul - from the only 100% natural drink that actually delivers.