Isabella Mainwaring I Author & Speaker

Isabella Mainwaring

AUTHOR I SPEAKER I CEO, POWER HAUS

Your Guide to Nervous System Health, Hormone Balance & Sustainable Success

The Movement
Power Haus is a sanctuary for high-performing women who are done burning out and ready to succeed in a way that feels sustainable, embodied, and in flow.

This is where nervous system work becomes your strategy. Where hormone balance isn’t just about symptoms - it’s about how you show up. And where your power isn’t something you’re striving for. It’s something you live, every single day.

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The Podcast
[COMING SOON]

Power Haus will be the space where powerful women come home to themselves.

Hosted by Isabella Mainwaring, each episode will help you rewire your nervous system, balance your hormones, and build a life that actually feels good.

This isn’t just a podcast. It’s a frequency and identity shift.
The Books
Hormone Balance for Dummies is Isabella's debut book with Wiley - a groundbreaking guide that brings nervous system healing, trauma-informed education, and hormone intelligence to the mainstream.

Isabella's second book, The Power We Hold, with Hay House, is due out in November 2025.
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MEET ISABELLA

Isabella Mainwaring is a former strategy consultant to FTSE 100 and Fortune 500 companies, including KPMG, global leaders at the World Economic Forum and clients at the forefront of scientific research such as Elsevier. With a background in corporate innovation and leadership strategy, she advised CEOs on growth, positioning, and transformation at the highest levels of business.

Alongside her corporate career, Isabella spent 18 years immersed in personal healing - eventually leaving consulting to study psychology, trauma recovery, hormone science, and nervous system regulation. She went on to develop the ThetaSomatics™ method and the Root Restoration Hormone Healing Model. Two evidence-based frameworks designed to help high-performing women address the root causes of burnout, regulate their stress response, rebalance their hormones, and achieve sustainable, biology-led success. Today, Isabella helps ambitious women stop operating in overdrive and start building lives, careers, and health systems that work with their body - not against it. Her approach combines neuroscience, somatics, hormonal health, and subconscious reprogramming to create lasting, grounded transformation.

More About Isabella

Isabella knows what she is doing and is slaying it

Isabella always meets me right where I'm at and whenever she provides new content all I think is ‘f$@k YES!!’. And then whenever I waver, she adds this extra stuff and suddenly the fire is relit again. How she keeps meeting me where I am at on my journey, is a testament to the path she is on. She knows what she is doing and is slaying it. I wish this was taught in schools, imagine the world if her work was part of the curriculum! Isabella deserves all the positivity, success, internal peace and happiness life has to offer. Thank you, Thank you, Thank you - Debbie, Australia

This is the first thing that's made an impact...

"My dad passed away about 8 years ago and since then I've been suffering from panic attacks and high levels of stress. l've been doing extensive research and looking for solutions ever since and I can honestly say this is the first thing I've done that has been made an impact...I can't tell you how good that feels! I had also gone off of birth control back in April 2023 and lost my period for about 6 months. I started spotting at around day 26 of the program!" - Laina, California

Cured my 'incurable' migraines

I did The Restore Challenge in December and I had a record of 30 days without a migraine attack. This hasn't happened to me in years - normally I get 2-5 migraines a week! I haven't experienced anything like this before. It's a miracle :) - Essi, Australia

I got my period back after 2 years of being told I was infertile

I've got my period back and just had my third 28 day cycle in a row. This feels insane! You've changed my life. I want people to know that a big white man behind a desk doesn't actually know sh*t. - Beth, UK

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