White enoki mushrooms captured against a black background, emphasizing their delicate structure and vibrant texture.

Unsure? So were we...

but not anymore.

Take the 60-sec Quiz
Our story in 3 minutes

Built in waiting rooms.
Built on standards.

Antioxi didn’t start as a brand. It started when someone we love was fighting cancer and one question wouldn’t leave us alone: how do I know this is safe? We chose the tortoise path. Brick by brick. Test by test. Proof over promises.
• Why we slowed down in an industry built for hype
• Why we publish tests and explain the boring details
See the Antioxi Standard →
The tortoise path. No rush. 100,000+ customers.
If you’ve ever looked at a supplement and thought “Okay, but how do I know?” you’re exactly who we built this for.
antioxi tremella mushroom farm

ANTIOXI WAS FOUNDED

2018

One line: This is where we stopped accepting “good enough” and started building the standard we wanted to buy ourselves.

  • Deep research: Meetings, papers, expert calls, and rabbit holes until the details finally made sense.
  • Farm hunts: We travelled and tested, chasing growers and extraction partners that actually met our bar.
  • The standard: Clinical-grade quality thinking from day one: identity, purity, and measurable actives.
  • Personal fuel: We were building something we wished existed when we needed it most.
  • A classic mistake: We named the page wrong… and yes, we’re still paying rent in Zuckerberg’s world.

Closer: If you’re here now, you’re already part of what we started back then.

antioxi supplements testing procedures

THE LEARNING CURVE

2019

One line: The year we learned the ropes the hard way, with no safety net.

  • Bootstrapped reality: We built with what we had, not what we wished we had.
  • Brexit punch: Our early EU community got harder to reach overnight, so we adapted fast.
  • Ops discipline: We tightened sourcing, extraction, and logistics so quality didn’t slip under pressure.
  • Money lessons: We made mistakes you only make once… because you can’t afford to repeat them.
  • Google Ads meltdown: £500 spent, confidence shaken, and a very quiet “what have we done?” moment.

Closer: Every brand has a highlight reel. This was our “become real” year.

GRIT HAPPENS

2020

One line: The year the world changed, and we chose to keep going anyway.

  • All in: Every resource went back into the business. No shortcuts, no backup plan.
  • Brexit finalised: The door to the EU tightened even more, and we had to re-route our future.
  • COVID chaos: Supply chains broke, fear spiked, and uncertainty became the default setting.
  • Endurance built: We learned how to operate under stress without compromising standards.
  • First funding win: Our first loan came through after relentless follow-up (and more than a few HSBC emails).
  • Ransom reminder: A hard lesson in backups when our website got held hostage.

Closer: This year didn’t just test us. It forged us.

antioxi supplements mushroom coffee

LOCKDOWN LESSONS

2021

One line: Quiet years reveal what you’re really made of. This was ours.

  • Lockdown life: We worked through isolation, long days, and the mental load no one sees.
  • Logistics chess: Global supply issues meant precision planning, patience, and a lot of problem-solving.
  • Range expansion: We broadened the lineup (hello mushroom coffees) and kept the quality bar high.
  • Unexpected spotlight: Our first Vogue and GQ feature landed, which still feels surreal.
  • Party panic: New Year’s Eve organising… then the site crashed. Daniela and Marko upstairs, guests downstairs.

Closer: Not glamorous. Not easy. But it moved us forward.

antioxi pet supplements

PAWS & PROGRESS

2022

One line: Growth got more complex, and the mission got bigger.

  • Inflation squeeze: Every decision had to be smarter as costs climbed everywhere.
  • Pet range begins: We launched pets after repeated demand from vets, pet parents, and shelters.
  • Global shockwaves: Ukraine war impacts hit supply and pricing, especially for Chaga sourcing.
  • Organic win: We achieved UK Organic Certification, a milestone we worked hard for.
  • Traceability upgrade: Batch tracking improved so accountability wasn’t a claim, it was a system.
  • Royal farewell: A moment the whole UK paused together.

Closer: More responsibility. More people relying on us. We levelled up.

BEATING BREXIT BLUES

2023

One line: The year we widened our reach and strengthened the foundation.

  • Global reach: Expansion into the EU and South Africa, building on the years of groundwork.
  • Cost-of-living era: Budgeting mattered more than ever, for customers and for us.
  • AI wave: ChatGPT arrived and changed the world’s expectations of speed, trust, and transparency.
  • Media spotlight: Features in the Evening Standard and The Independent gave us a bigger stage.
  • Deeper craft: We joined the British Mycological Society and leaned further into the science.

Closer: Bigger audience, higher standards. We chose higher standards.

antioxi supplements podcast

VALUE OVER PRICES

2024

One line: This is the year we doubled down on what matters: trust, support, and real-world value.

  • Customer first: We chose long-term trust over short-term tactics.
  • Team growth: Theo and Elanda joined, adding heart and horsepower to the mission.
  • Advisor board: We built our Board of Advisors to keep us sharp, grounded, and accountable.
  • Podcast launch: We started telling the stories behind the supplements and the humans using them.
  • New products: We launched teas and kept refining how people actually use the range day-to-day.
  • More press: Women’s Health and The Telegraph featured the brand.
  • To be continued: Because this story isn’t finished.

Closer: If you’ve followed along, thank you. If you’re new, welcome in.

antioxi supplements mushroom tinctures

THE YEAR OF CHARACTER BUILDING

2025

One line: The year we got tested on every front: growth, regulation, logistics, and identity, and we kept the bar high anyway.

  • USA launch shock: We pushed hard into the US and started getting real traction, then a de minimis policy shift hit and hundreds of orders sat stuck in customs and FDA processing for months. Painful, expensive, and a crash course in patience.
  • Chicago base: We registered Antioxi LLC and officially became operational in Chicago, building a stronger foundation for the US long game.
  • UK compliance curveball: A competitor triggered scrutiny and we had to reformulate and tighten up fast. The hardest part: pulling back on human marketing for Turkey Tail in the UK, even though it’s the product that started this whole company.
  • Tinctures launched: We expanded into tinctures and became the only brand we know offering 16 mushroom extracts in every format: powders, capsules, tinctures.
  • Beyond mushrooms: We launched a supplement line starting with creatine, bovine collagen, and marine collagen, built with the same Antioxi mindset: clean inputs, clear standards, no shortcuts.
  • Back to China, with cameras: We went back again, this time filming and documenting more of the sourcing story so customers could see the real world behind the products.

Closer: If you’ve ever felt like your health journey forces you to build character, this year made us understand that deeply. You’re not just buying supplements. You’re joining the story.

Free • Private • 15 minutes

Book a Free 1:1 Consultation

Feeling unsure what to choose or how to stack? Book a short call and we’ll make it simple. In this call, you’ll get:

  • A clear starting point based on your goals
  • A simple routine you can stick to
  • Safety-first guidance (no guesswork)

Takes 30 seconds to book. No pressure. Cancel or reschedule anytime.

Check Availability

As seen in

As featured in VOGUE magazine – trusted wellness brand press mentionAntioxi featured in The Evening Standard logoAntioxi featured in GQ logoAntioxi featured in Women's Health logoAntioxi featured in The Telegraph logoAntioxi featured in The Independent logo
As featured in VOGUE magazine – trusted wellness brand press mentionAntioxi featured in The Evening Standard logoAntioxi featured in GQ logoAntioxi featured in Women's Health logoAntioxi featured in The Telegraph logoAntioxi featured in The Independent logo
As featured in VOGUE magazine – trusted wellness brand press mentionAntioxi featured in The Evening Standard logoAntioxi featured in GQ logoAntioxi featured in Women's Health logoAntioxi featured in The Telegraph logoAntioxi featured in The Independent logo
As featured in VOGUE magazine – trusted wellness brand press mentionAntioxi featured in The Evening Standard logoAntioxi featured in GQ logoAntioxi featured in Women's Health logoAntioxi featured in The Telegraph logoAntioxi featured in The Independent logo
As featured in VOGUE magazine – trusted wellness brand press mentionAntioxi featured in The Evening Standard logoAntioxi featured in GQ logoAntioxi featured in Women's Health logoAntioxi featured in The Telegraph logoAntioxi featured in The Independent logo
As featured in VOGUE magazine – trusted wellness brand press mentionAntioxi featured in The Evening Standard logoAntioxi featured in GQ logoAntioxi featured in Women's Health logoAntioxi featured in The Telegraph logoAntioxi featured in The Independent logo
As featured in VOGUE magazine – trusted wellness brand press mentionAntioxi featured in The Evening Standard logoAntioxi featured in GQ logoAntioxi featured in Women's Health logoAntioxi featured in The Telegraph logoAntioxi featured in The Independent logo

our journey

Our journey to bring top-quality mushroom supplements to you.

An illustration of a mushroom with a long stem and red cap, with mushroom mycelium that is growing from the stem of the mushroom.
01

Rooted in nature

We meticulously searched farms across the Americas and Asia to ensure we source only the highest quality functional mushrooms available globally.

An illustration of a glass, capsule shaped, container on a podium. The container is standing upright on the podium and has a mushroom growing on the inside.
02

Refined by Science

Blending the best of nature with scientific rigor, we crafted premium mushroom supplements to provide maximum health benefits, ensuring every product is of the highest quality.

An illustration of a small mushroom looking into a mirror and seeing a big mushroom.
03

The Anti Difference

Each batch of our mushroom supplements undergoes stringent third-party testing to verify its purity and safety, maintaining our commitment to excellence.

An illustration of a mushroom with a guarantee seal in front of the mushroom, symbolizing the assurance and quality of Antioxi's premium mushroom products.
04

Our promise to you

We will stay independent. Free from investor pressures, we maintain complete control over our quality, ensuring it remains uncompromised by cost-cutting demands.

01

Rooted in nature

We meticulously searched farms across the Americas and Asia to ensure we source only the highest quality functional mushrooms available globally.

02

Refined by Science

Blending the best of nature with scientific rigor, we crafted premium mushroom supplements to provide maximum health benefits, ensuring every product is of the highest quality.

03

The Anti Difference

Each batch of our mushroom supplements undergoes stringent third-party testing to verify its purity and safety, maintaining our commitment to excellence.

04

Our promise to you

We will stay independent. Free from investor pressures, we maintain complete control over our quality, ensuring it remains uncompromised by cost-cutting demands.

An illustration of a mushroom with a long stem and red cap, with mushroom mycelium that is growing from the stem of the mushroom.An illustration of a glass, capsule shaped, container on a podium. The container is standing upright on the podium and has a mushroom growing on the inside. An illustration of a small mushroom looking into a mirror and seeing a big mushroom.An illustration of a mushroom with a guarantee seal in front of the mushroom, symbolizing the assurance and quality of Antioxi's premium mushroom products.

Meet the Team

Real people. Real support. Built around Safe, Potent, Personal.

Marko

Co founder, Ops

Here for:
Standards, safety, systems

If you ever wonder “how do you verify this” it’s Marko.

Daniela

Co founder, Marketing

Here for: Clarity, story, community

If you’ve ever felt overwhelmed by wellness info, Daniela built this for you.

Elanda

Operations and B2B

Here for: Smooth, reliable, organised

The reason things just work in the background.

Theo

Customer Support Lead

Here for: Help, calm, real answers

The human in the chat. No scripts. Just care (and a pun).

Josh

Video & Marketing

Here for: Better videos, faster learning

Turns big topics into simple, watchable moments.

Rebecca

DACH Localisation

Here for: German that feels native

So you never have to “translate in your head.”

Michael

DACH Community

Here for: Local support, real feedback

Brings DACH voices into the Antioxi community.

 896 × 1152

• 1.37 MB

Zalea

Chief Canine Connoisseur

Here for: Pet taste tests

Quality control, but fluffy.

Carmen, one of the guests on the What's Wrong With You (WWWY) podcast, is seated at a wooden table, engaged in a lively conversation with Antioxi co-founder Marko Grensemann. The table is adorned with bowls containing various mushrooms, emphasizing the podcast's focus on health.

Antioxi PODCAST

A podcast exploring the highs, lows, and breakthroughs of health - breaking isolation and building a community through real, unfiltered stories.

Tune In

WHY CHOOSE US

THE ANTIOXI DIFFERENCE

Pencil drawing of a lock in front of a mushroom, symbolizing Antioxi's commitment to the purity and safety of mushroom supplements.
01

Safety First

We prioritize your peace of mind. Rigorously third-party tested, our supplements deliver quality - so you can feel confident in every scoop.

LEARN MORE

Drawing of a lab coat in front of a mushroom, showcasing Antioxi's dedication to uncompromising quality and rigorous testing.
02

We're Obsessed

From farm to extraction, we obsess over every detail to ensure the finest quality. Guided by our expert advisory board, we craft mushrooms with precision, care, and a commitment to excellence.

LEARN MORE

Lightbulb drawing in front of a mushroom, representing Antioxi's personalized and innovative approach to customer support and health.
03

Real Help, 7 Days a Week

Your journey is unique, and so is our support. Chat with a real person, seven days a week, or book a 1:1 chat for product advice tailored just for you.

BOOK A 1:1 CONSULT

01

Safety First

We prioritize your peace of mind. Rigorously third-party tested, our supplements deliver quality - so you can feel confident in every scoop.

LEARN MORE

02

We're Obsessed

From farm to extraction, we obsess over every detail to ensure the finest quality. Guided by our expert advisory board, we craft mushrooms with precision, care, and a commitment to excellence.

LEARN MORE

03

Real Help, 7 Days a Week

Your journey is unique, and so is our support. Chat with a real person, seven days a week, or book a 1:1 chat for product advice tailored just for you.

BOOK A 1:1 CONSULT

Pencil drawing of a lock in front of a mushroom, symbolizing Antioxi's commitment to the purity and safety of mushroom supplements.Drawing of a lab coat in front of a mushroom, showcasing Antioxi's dedication to uncompromising quality and rigorous testing.Lightbulb drawing in front of a mushroom, representing Antioxi's personalized and innovative approach to customer support and health.