Welcome To Girlie
Empowering Women Through Cycle Awareness & Health Education
A world where every girl grows up understanding her menstrual cycle, every woman has access to trusted hormonal health education, and body literacy is recognized as an essential part of health education.
Our Vision
Girlie Foundation is a nonprofit organization providing accessible, science-based menstrual and hormonal health education through free digital tools, community workshops, and school and workplace pilot programs.
Our Mission
About Girlie Foundation
At Girlie Foundation, we believe every girl and woman deserves to understand her body through accessible, science-based education.
For generations, menstrual health education has focused almost entirely on periods and reproduction, leaving millions without an understanding of the hormonal changes that influence their mood, energy, focus, sleep, nutrition needs, athletic performance, and overall well-being throughout the month. As a result, many girls grow up believing their bodies are unpredictable or "wrong," when in reality, they simply were never taught how their menstrual cycle works.
Girlie Foundation was created to change that.
Our mission is to make comprehensive menstrual and hormonal health education free and accessible to all girls and women from a young age. Through educational workshops, digital learning tools, and the free Girlie app, we provide evidence-based resources that help individuals understand the four phases of the menstrual cycle and how hormones influence daily life.
We also partner with schools, community organizations, healthcare professionals, and employers to expand access to menstrual health education where it's needed most. By equipping people with practical, easy-to-understand knowledge, we hope to improve confidence, body literacy, mental well-being, and long-term health outcomes.
We envision a future where understanding the menstrual cycle is considered a fundamental part of health education.
Meet the Founder
Hi, I’m Skylynn Zastoupil, founder of Girlie Foundation—and this is the story that started it all:
Growing up without an understanding of my menstrual cycle, every month before my period I thought I was crazy. My mood would suddenly shift, I would cry more, feel anxious, and blame myself for having cravings.
When I started tracking my cycle for the first time at 22, I finally understood that there was real science behind the physical and emotional changes happening in my body throughout the month. I stopped blaming myself and wondering if there was something wrong with me.
I feel like this is when my life truly began. Instead of dreading half of the month—knowing there were symptoms before my period but not understanding why they were happening or how to work with them—I finally started enjoying my entire menstrual cycle. I learned how to work with my body and support myself through each phase.
Girlie Foundation was born as my deeper understanding of hormones began to align with my background in health and fitness coaching. Originally, I was building an app to help my clients track their cycles and receive guidance throughout the month based on their hormone phases.
As the app developed into something much bigger—providing education on each phase of the menstrual cycle, how hormones influence the body, and how to support yourself through nutrition, movement, rest, social connection, and daily tasks—I started asking myself: How life-changing would it have been to grow up with this knowledge?
That realization changed the purpose behind Girlie. I decided to transform the app into a nonprofit resource and expand our team to develop standardized hormone and menstrual health education that can be brought into schools and communities.
There is no reason for anyone to grow up disconnected from their body or unaware of the basic science behind how it works. Understanding your hormones shouldn’t be something you discover in your 20s—it should be knowledge you grow up with.
Girlie Foundation Programs and Initiatives
01
The Girlie App
Free nonprofit app offering cycle tracking, daily hormone insights, and personalized nutrition, fitness, and planning tools-powered by ethical, private technology.
02
School & Workplace Pilots
Cycle-aware education and wellness programs designed for scalable impact in schools and organizations.
03
Community Events & Support
Workshops, webinars, and peer spaces that build menstrual health literacy, connection, and confidence.
04
Cycle Syncing Education
Practical guidance that helps women align nutrition, movement, and life demands with their hormonal phases.
Year One Goals
01
Product & Platform
Launch the Girlie app with core cycle education, tracking, and personalized wellness tools, while continuously refining the platform based on user feedback and expert input.
02
Education & Impact
Deliver accessible menstrual cycle education to 50,000+ women across diverse communities, increasing cycle literacy, self-awareness, and confidence in health decision-making.
03
Community & Partnerships
Host 10–15 pilot workshops and community events and establish 5–8 strategic partnerships with schools, workplaces, and women’s health organizations.
04
Growth & Reach
Reach 100,000 engaged app users through organic growth and partnerships, establishing a strong foundation for national and global scale.
Board of Directors
Skylynn Zastoupil
Skylynn Zastoupil is the Founder and Executive Director of Girlie Foundation. Driven by a passion for improving girls' health education, she founded Girlie to ensure every girl has access to accurate, science-based education about hormones and the menstrual cycle. She leads the organization's vision, strategic partnerships, fundraising, and program development, with a mission to empower the next generation through education, confidence, and accessible resources.
Founder & Executive DirectorCassandra King
Cassandra King serves as Board Chair of Girlie Foundation, bringing more than 15 years of executive leadership experience in nonprofit management, behavioral health, and workforce development. She provides strategic guidance in governance, organizational growth, and board leadership, helping advance Girlie's mission to make hormone health education accessible, evidence-based, and empowering for girls everywhere.
Board ChairKathryn Mitropoulos, CPA, serves as Treasurer of Girlie Foundation, bringing more than a decade of experience in accounting, financial reporting, nonprofit finance, and audit. As a Certified Public Accountant, she helps ensure the organization's financial integrity, transparency, and long-term sustainability while supporting Girlie's mission to make hormone health education accessible to every girl.
TreasurerKathryn Mitropolis
NeededSecretary
Currently Hiring
Advisory Board
Dr. Sarah Hill
Dr. Sarah Hill serves on Girlie Foundation’s Advisory Board, bringing her expertise as an evolutionary social psychologist, author of The Period Brain, and educator focused on the relationship between hormones, the menstrual cycle, and women’s health.
Women's Health Expert 
Kayla Chey
Kayla is a founding board advisor for the Girlie Foundation and brings over 15 years of expertise in Fund Development, serving family-centered and social justice organizations across Ventura County. A graduate of the Ventura County Leadership Academy, she is also an active member of the Ventura High School Site Council, championing youth voice and equitable access in education.
Before her nonprofit career, Kayla spent years as a dancer, choreographer, director, and competitor in Ori Tahiti, carrying forward cultural artistry, discipline, and joy. As a single mother of two boys, she is committed to empowering girls and young women to lead with confidence, creativity, and courage.
Board AdvisorTechnology AdvisorMorry Belkin
Morry Belkin serves as Technology & App Development Advisor for Girlie Foundation. With more than 25 years of experience leading technology organizations and scaling startups, he brings deep expertise in product strategy, AI, software architecture, and engineering leadership. As a Chief Technology Officer, Morry has helped build innovative, secure, and scalable technology platforms from startup through rapid growth. He advises Girlie on app development, technology strategy, and AI integration, helping create a reliable, engaging, and accessible digital experience that empowers girls through hormone health education.
Our Team
Sadie Bazur-Leidy
Sadie Bazur-Leidy brings a background in public health and business, with a passion for menstrual health education and experience co-founding a Malawi-based initiative that empowered teens with reusable menstrual health solutions.
Program Advisor
Diana Nakawombe
Diana Nakawombe serves as Grants & Development Manager for Girlie Foundation, bringing more than 14 years of nonprofit leadership experience in program management, grant writing, donor relations, and community development. With a background in law and a Master's in Nonprofit Management in progress, she has successfully secured grant funding, led donor-funded initiatives, and built partnerships that create lasting community impact. Diana helps expand Girlie's reach by strengthening funding opportunities and advancing the Foundation's mission to make hormone health education accessible to girls everywhere.
Grants & Development Manager
Hormone Health Coach Kiera Davis
Kiera Davis serves as Hormone Health Advisor and Curriculum Developer for Girlie Foundation. With over 10 years of experience in health, fitness, nutrition, and behavior change coaching, she specializes in helping women understand their hormones and optimize their health through science-based education. Kiera brings her expertise in hormone health, women's wellness, and educational program development to help create Girlie's evidence-based curriculum, ensuring girls receive accurate, engaging, and empowering hormone health education.
Graduate Women's Health Researcher Savannah Hastings
Savannah Hastings, MS, is a graduate researcher specializing in psychology, women’s health, and menstrual cycle science, with experience studying the connection between hormones, behavior, and overall well-being. At Girlie Foundation, she supports curriculum development and community outreach by helping translate scientific research into accessible education that empowers girls and women to better understand their bodies.
Curriculum Development SpecialistLauren McCarty
Lauren McCarty, Ed.S., CALT, serves as Curriculum Development Specialist for Girlie Foundation. With a background in instructional leadership, speech-language pathology, and dyslexia therapy, Lauren specializes in creating engaging, research-based educational content that meets the diverse needs of learners. She brings extensive experience in curriculum design, educator training, and evidence-based instruction, helping develop Girlie's curriculum to ensure hormone health education is accessible, age-appropriate, and impactful for students of all learning styles.
NeededMarketing Director
Currently Hiring
NeededSocial Media Manager
Currently Hiring
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Most girls grow up learning that the menstrual cycle is only about getting a period, but the cycle affects much more — including energy, mood, sleep, focus, exercise, and overall well-being. Understanding how hormones work helps girls recognize changes in their bodies and feel empowered instead of confused or ashamed.
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Donations and grants allow Girlie Foundation to create and expand free hormone health education programs for girls and communities. Funding supports curriculum development, school and community workshops, educational resources, technology development, app accessibility, and program operations that help us reach more girls with reliable, science-based information.
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The luteal phase occurs after ovulation and before menstruation. During this phase, progesterone rises and then drops, which can influence mood, appetite, sleep, and energy levels. Many people experience increased cravings because the body may require additional energy while preparing for menstruation. Understanding these changes can help women recognize patterns and better support their bodies instead of feeling frustrated by them.
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You can support our mission by donating, partnering with us, bringing Girlie programs to your school or community, volunteering, or sharing our resources with others. Every contribution helps us expand access to free hormone health education for more girls.
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For many generations, menstrual health education focused only on reproduction and managing periods rather than understanding the full hormonal cycle. Cultural stigma, limited research on women’s health, and gaps in medical education contributed to many women growing up without learning how their hormones influence their daily lives. Girlie Foundation exists to make this knowledge accessible to the next generation.
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While painful period cramps have been normalized for generations, they are not something every person has to accept as an unavoidable part of having a menstrual cycle. A healthy menstrual cycle is not meant to leave you regularly suffering or unable to participate in daily life.
By understanding how your hormones change throughout the month and learning how to properly support your body through nutrition, movement, sleep, and lifestyle habits, it is possible to experience a more balanced cycle with fewer symptoms — and for some people, even pain-free periods.
Girlie Foundation is here to help you understand your body, recognize what your hormones are communicating, and learn practical ways to support your cycle with confidence.
Frequently Asked Questions
Help Advance Menstrual Health Education
Girlie Foundation relies on the support of donors, partners, and community members to expand menstrual health education and access to trusted resources. Your support helps more girls and women understand their bodies, reduce stigma, and make informed decisions about their health and wellbeing.
Ways to Support
Make a Donation – Invest in prevention-focused education, program development, and resource distribution for women and girls.
Partner With Us– Collaborate on school, community, or workplace initiatives that integrate menstrual health and wellness education.
Volunteer Your Skills – Support outreach, content development, events, or program delivery.
Host a Workshop or Training – Bring Girlie Foundation educational programs to your school, organization, or community group.
Together, we can build a world where menstrual health education is accessible, evidence-based, and treated as a fundamental part of women’s health and community wellbeing.