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Redefining Women's Health from The Core.

We believe true wellness starts with knowledge, balance, and science. That's why The Core was founded — to empower women to take control of their health through smarter, simpler, and more effective nutrition.

Discover our sprays

At The Core, we believe wellness should be effortless — backed by research, designed for real life, and made to fit women’s needs. Our mission is to close the gap between what your body needs and what traditional supplements deliver. With clean, effective vitamin sprays, we make better health something you can feel every day.

Drs. Louse Lagendijk
Meet the founder

Founded by Louise Lagendijk, The Core We Care is the result of her pursuit to take women's health to the next level.

Integrative medical doctor and former Harvard researcher dr. Louise Lagendijk founded The Core combining years of scientific research with a passion for preventive and integrative women's health. She founded The Core We Care to make smarter, cleaner, and more effective nutrition accessible to women and their families — without the pills, pressure, or complexity.

In her women's clinic she observed the same nutrient deficiencies in the lab results of her patients. She also noticed how low the quality of most supplements on the market is, potentially doing more harm than any good.

She founded THE CORE as an educational platform for integrative women's health, and over the years developed THE CORE sprays after rigorous research and development with her team of therapists and collaborating laboratory.

Join the community

Clean and Hormone Safe

Designed to work with your body, not against it. Free from sugar, alcohol and unnecessary, hormone-disrupting ingredients.

Doctor Developed

Louise Lagendijk, medical doctor and integrative medicine specialist, believes prevention comes before intervention.

Optimal Absorption

Formulated with highly bioavailable ingredients and optimized delivery methods for maximum absorption.

Sharon Assher

Sharon, founder of 'Voeding maakt je beter', works across nutrition, hormonal health, gut function, and lifestyle, helping women understand what drives their energy, mood, metabolism, and long-term wellbeing. Her approach is science-based and focused on identifying root causes through practical, sustainable strategies.

Dr. Katrien de Vusser

Katrien de Vusser is a nephrologist, specialized in systemic diseases and founder of THRIVE85 CLINIC. She focuses on preventive and longevity medicine and trained at Cleveland Clinic and Harvard Medical School. She researched longevity pathways during her PhD and works at UZ Leuven and KU Leuven.

Frederique Huisman

Frederique, founder of Fred Health Studio — an all-in-one health and wellness concept for women, combining reformer, barre and yoga workouts and expert knowledge in one place so you don’t have to think about it. Frederique is a certified Pilates & Yoga instructor and orthomolecular gut and hormone therapist.

Dr. Marjolein Detiger

Marjolein Detiger is a holistic dentist and founder of 'de Holistische tandarts', trained at Academic Centre for Dentistry Amsterdam. She specializes in biological dentistry and has further training in reconstructive, biomimetic, and orthomolecular therapies. Her approach combines Western medicine with natural practices to support optimal oral and overall health.

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