Transform Skin. Transform Lives.
Learn the science of skin nutrition and become the go-to expert your clients rave about. Enrolment Open NOW!
LEARN MOREOUR FOUNDERS HAVE BEEN FEATURED IN:
ONLINE COURSES | ENROLMENT OPEN NOW
Functional Nutrition Skin Institute
Teaching estheticians and skincare professionals how to confidently integrate nutrition into their work and transform client results from the inside out.
Skin Nutrition Essentials
Learn the foundational nutrition strategies every skin pro needs to confidently support skin from the inside out.
Advanced Skin Nutrition
Go deeper into functional skin health with advanced tools, supplements, and real-world client strategies. Pre-Req: Skin Nutrition Essentials.
You're Inside-Out Skin Era Starts Now.
You're here to actually transform skin — and that starts from within.
Skin Nutrition Essentials gives you the tools, language, and confidence to finally bring inside-out healing into your work.
No overwhelm. No guessing. Just clear steps you can take today.
LEARN MOREMEET YOUR INSTRUCTORS
Hey, We're Katie & Cris.
Katie Stewart is a Registered Holistic Nutritionist, Functional Diagnostic Nutrition Practitioner, and CEO of KSW Inc. — the largest acne nutrition coaching company in the world. She’s also the founder of The Clear Skin Solution, a globally recognized program that’s helped over 3,000 women clear their skin using a root-cause nutrition approach.
Cris Brown is a Registered Holistic Nutritionist, Culinary Nutrition Expert, and Functional Diagnostic Nutrition Practitioner. She’s the Chief Program Officer at KSW Inc. and Head Coach inside The Clear Skin Solution, where she helps clients heal their skin through personalized nutrition and lifestyle support.
Together, Katie and Cris also co-host The Clear Skin Chronicles — the #1 nutrition podcast on Apple — where they share real-life strategies on skin and functional nutrition.
 At FNSI, their shared mission is to give skin pros the education they never got in school — so they can stand out in their field, build confidence, and support skin at the root.
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