


ABOUT FLUXX
We're redefining
what it means to age
Menopause isn't a cliff: it doesn’t happen all at once.
It unfolds in phases - hormonal, physical, emotional - that often begin in your 30s or 40s and last for years.
Menopause isn't a cliff: it doesn’t happen all at once. It unfolds in phases - hormonal, physical, emotional - that often begin in your 30s or 40s and last for years.
About fluxx: The Hormonal Shifts
1 year without a period
PROGESTERONE
ESTROGEN
TESTOSTERONE
PET can mean two things here: Precision Endocrine Therapy - treatment that’s personalized to your hormone pattern - and the three core hormones at play in menopause: Progesterone, Estrogen, and Testosterone.
PROGESTERONE
ESTROGEN
TESTOSTERONE
PET can mean two things here: Precision Endocrine Therapy - treatment that’s personalized to your hormone pattern - and the three core hormones at play in menopause: Progesterone, Estrogen, and Testosterone.
PROGESTERONE
ESTROGEN
TESTOSTERONE
PET can mean two things here: Precision Endocrine Therapy - treatment that’s personalized to your hormone pattern - and the three core hormones at play in menopause: Progesterone, Estrogen, and Testosterone.
What is "fluxx"?
We use the word “fluxx” to describe what most of us weren’t taught to expect: phases of shifting hormones that touch nearly every part of the body.
What is "fluxx"?
We use the word “fluxx” to describe what most of us weren’t taught to expect: phases of shifting hormones that touch nearly every part of the body.
Menopause-related hormonal changes can affect physical, emotional, mental, and social well-being - and these impacts are often underestimated.
- World Health Organization (WHO)
Menopause-related hormonal changes can affect physical, emotional, mental, and social well-being - and these impacts are often underestimated.
- World Health Organization
Fluxx helps name what’s happening, why it matters, and what to do about it.
It’s the double-X chromosome shift we all deserve to understand.
FLUXX helps name what’s happening, why it matters, and what to do about it. It’s the double-X chromosome shift we all deserve to understand.
You should know:
Menopause doesn’t start the day your period ends. Read more about the day it actually begins.
Hormonal changes can begin as early as your 30s or 40s, and sometimes even earlier.
Hormone therapy is the most effective treatment for menopause symptoms and is safe for most women to start early.
You should know:
Menopause doesn’t start the day your period ends. Read more about the day it actually begins.
Hormonal changes can begin as early as your 30s or 40s, and sometimes even earlier.
Hormone therapy is the most effective treatment for menopause symptoms and is safe for most women to start early.
Why does Fluxx exist?
Because the healthcare system wasn’t designed for women in transition - and much of it wasn't designed for women at all.
Because too many women are left to google their symptoms in the dark - unsure what advice to trust.
Because misinformation about hormone therapy caused decades of confusion and suffering.
And because it's about damn time.
Why does Fluxx exist?
Because the healthcare system wasn’t designed for women in transition - and much of it wasn't designed for women at all.
Because too many women are left to google their symptoms in the dark - unsure what advice to trust.
Because misinformation about hormone therapy caused decades of confusion and suffering.
And because it's about damn time.
About Fluxx (The Company)
Fluxx is a women’s health education platform dedicated to improving how we understand, talk about, and move through menopause.
FLUXX is a women’s health education platform
dedicated to improving how we understand, talk about, and move through menopause.

Dr. Heidi Flagg
OB/GYN & FLUXX FOUNDER

Dr. Heidi Flagg
OB/GYN & FLUXX FOUNDER
Meet our Founder
Heidi Snyder Flagg, MD, is a board-certified OBGYN with over 30 years of clinical experience, with 23 years as managing partner of a women-led medical practice in New York City.
She’s a Menopause Society Certified Practitioner, an advocate for evidence-based care, and a fierce believer that women deserve better information - and a lot less shame - when it comes to hormones and aging.
Meet our Founder
Heidi Snyder Flagg, MD, is a board-certified OBGYN with over 30 years of clinical experience, with 23 years as managing partner of a women-led medical practice in New York City.
She’s a Menopause Society Certified Practitioner, an advocate for evidence-based care, and a fierce believer that women deserve better information - and a lot less shame - when it comes to hormones and aging.



Fluxx © 2025
Fluxx © 2025
Fluxx © 2025