Core Four Analysis — 30 minutes, no pitch | OPTT
Core Four Analysis — 30 minuten

You know there's
meer in zit.

You’re functioning. Just not at the standard you set for yourself. In 30 minutes I’ll show you exactly where your system is stuck — and what we do about it.

Book your free analysis →
Alex Parengkuan
What you get

Three things you’ll
in 30 minuten weet.

No sales pitch. No generic advice. An honest conversation about your system — based on your Core Four Score.

1
Where your system is stuck
Not the symptoms — the biological layer beneath them. I’ll show you which of the three pillars (cell, stress response, biomechanics) is undermining your performance the most.
2
Why nothing has worked structurally
You’ve tried everything. Your bloodwork is fine. And yet something is off. I’ll explain why — and why you’ve been solving the wrong problem.
3
Whether Core Four REWIRED is the right next step
An honest answer. If it doesn’t fit, I’ll say so. If it does, I’ll show you what 90 days looks like — and what you’ll be doing differently at the end of it.
"You know there’s more in you. That feeling is correct. There’s a biological layer beneath your current performance that you haven’t touched yet. That’s where the next level begins."
Alex Parengkuan — Founder OPTT

30 minutes. No obligations. No pitch. We look together at whether this actually makes sense for you.

Book your free analysis →
Who this is for

This conversation is for you
if this resonates.

You’re functioning well — but you know that on your best days you’re a different version of yourself than on the rest.
You’ve tried everything. It helps temporarily. But nothing changes structurally.
Your energy, focus or recovery isn’t what it used to be — and you refuse to accept that as just part of getting older.
You’re a founder, CEO or entrepreneur. You know exactly what it costs when you’re not performing at your best.
You’re not looking for someone to tell you to think differently. You’re looking for a system that actually changes something.
You’re willing to be honest — with yourself above all. That’s the only condition for this conversation.
What others say

People who knew
there was more in them.

"Working with Alex was a complete reset. Of myself. Of how I show up."

Elbert van Dalen — CEO

"From numb and listless to sharp — back to performing at the standard I hold myself to."

Dennis Kuipers — Founder AnyLinQ BV

"Alex Parengkuan is the ultimate gift that every young adult should receive before turning 18. I only realised it 25 years later."

Tom van de Kamp — Entrepreneur
Alex Parengkuan
About Alex

Twee decennia
als professional.

Physiotherapist, sports physio and performance coach. Seven years as head therapist at Neptunus Baseball — six national championships, three European Cups.

Diagnosed with MS in 2019. Every symptom gone within weeks — without medication. What I do for my clients is exactly what I did for myself.

Physiotherapy from 1994, working as a physiotherapist from 2007. What I discovered in two decades of practice: most people treat the symptom. I go to the cell. How light, water and magnetism affect your cells determines how much energy you have, how you recover and how you decide.

400+
Individual programmes since 2017
5.000+
Treatments as physio (from 2007)
6x
6x national champion Neptunus
3x
3x European Cup winner
Book your analysis

Together to the cause —
and the solution.

Choose a time that suits you. 30 minutes. No obligations.