Our Story

Built because of my daughter. Made for everyone who deserves the same chance she got.

---

The night everything changed

It started with a seizure.

My daughter was a young child — bright, curious, full of life. Then one night, without warning, her body seized. The world that had made complete sense the day before stopped making sense entirely.

What followed were years no parent should have to live through. Appointments. Tests. Conflicting opinions. Misdiagnoses. Each specialist offering a different theory, none of them an answer. She continued to deteriorate. Her neurological function declined. The seizures persisted. The child who had been thriving was slipping away, and the medical system, for all its expertise, could not explain why.

As the years passed, the outlook grew bleak. Her medical team feared a progressive brain disease. They used words like irreversible. They began preparing us for a future that looked nothing like the one we had imagined for her.

---

The answer was in a blood test

Then a single blood test changed everything.

Her homocysteine level was dangerously high — many times the upper limit of what the body can safely sustain — while test after test had come back labelled normal.

The cause was a severe MTHFR gene deficiency. Her body could not convert standard B vitamins into the active forms her brain needed. The damage had been accumulating quietly, year after year, because no one had known to look for it.

What her doctors put her on was not a new drug or an experimental procedure. It was methylated B vitamins, prescribed and monitored by her medical team — nutrients in the active forms her body could actually use.

Within two months, she began to recover. Within six, she walked out of hospital. She returned to school. She has been seizure-free ever since.

Today, she is thriving.

---

Why I built NeuroThrive™

I watched every stage of that journey — the fear, the helplessness, the years of searching, and finally an answer so simple it was hard to believe.

I felt two things at once: profound relief, and a deep, unshakeable anger.

Not at any individual doctor. Every clinician involved acted with skill and dedication. My anger was at a system that had no framework for what she had — one that tested for everything conventional medicine expected to find, and missed the one thing it didn't know to look for.

I had spent over a decade in frontline social care, working with developmentally traumatised children and with asylum seekers, seeing first-hand how profoundly neurological health shapes every dimension of a person's life. I hold a Diploma in Epigenetics and a Level 8 in Addiction Studies from Maynooth University. I understood, professionally and personally, that the brain is not separate from the body, and that neurological symptoms often have biochemical roots.

After her diagnosis I went deeper. I read the research on methylation, homocysteine and MTHFR. I worked with metabolic consultants to understand the full clinical picture. I learned which forms of nutrients the body can use, which it can't, and why so many supplements sold for MTHFR were missing the point.

What I found was a gap between what the research showed and what people were actually being handed off a shelf.

NeuroThrive™ is my answer to that gap.

---

The problem with most supplements

Estimates vary by population, but a substantial share of people carry at least one MTHFR variant, and most of them have no idea. Those who do find out are often told simply to take folic acid — the synthetic, inactive form of folate that people with MTHFR variants convert poorly.

The result is a supplement that does least for the people who need it most. Folic acid goes unused while the active methylfolate the cells need stays unavailable. The person takes their supplement faithfully. Nothing shifts. They conclude that supplements don't work — when the truth is that this supplement, in this form, doesn't work for them.

The same applies to B12. Standard cyanocobalamin has to be converted to methylcobalamin before the nervous system can use it, and that conversion runs through the same impaired pathway. Standard B6 has to be converted to P-5-P. Most supplements contain none of the active forms.

NeuroThrive™ MTHFR Support contains only active, methylated ingredients — methylfolate, methylcobalamin and P-5-P — in forms the body can use without conversion. It is formulated for people whose biology means standard supplements aren't enough.

---

What we stand for

---

For everyone who was told their results were normal

Her story is extraordinary in its severity. But the underlying pattern — a methylation problem going undetected, producing symptoms that don't fit the standard diagnostic framework, in someone whose bloods keep coming back normal — is not extraordinary at all.

It happens to people every day. People with persistent fatigue, anxiety, brain fog, migraines and low mood that don't respond to the usual approaches. People who have been told there is nothing wrong with them. People who have started to believe it.

NeuroThrive™ exists for them. For the person who has tried everything and still doesn't feel right. For the person who has just found out they have an MTHFR variant and doesn't know where to start. For the parent who recognises something of their own child in this. For anyone who deserves a real answer rather than a shrug.

I can't promise that methylated B vitamins will change anyone's life the way they changed hers. What I can promise is that everything we make is built with the same care, the same research, and the same refusal to accept that good enough is good enough.

James O'Neill
Founder, NeuroThrive™ Limited
Co. Louth, Ireland

---

NeuroThrive™ products are food supplements and are not intended to diagnose, treat, cure or prevent any disease. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Individual results vary. Consult your GP before starting any new supplement, particularly if you are pregnant, breastfeeding, or taking prescription medication.