What does your body actually need?
Sasang constitutional medicine reveals why the same food heals one person and harms another. Discover your type and finally understand your body's unique patterns.
사상체질 · 四象體質
What You'll Discover
Your constitution is the key to understanding why generic health advice never quite worked for you
Foods as Medicine
The same food can heal one person and harm another. Discover your constitutional foods - and why that "healthy" diet may be wrong for you.
K-Beauty Matching
Stop the skincare guessing game. Learn which Korean beauty ingredients are formulated for your skin's unique constitutional needs.
PopularRight Movement
Some constitutions need intense sweat. Others are depleted by it. Find exercise that builds energy instead of draining it.
Herbal Wisdom
Korean herbal teas and tonics matched to your type. Plus: which trending supplements could actually harm you.
Seasonal Strategy
Why you thrive in summer but struggle in winter (or vice versa). Align your life with your body's natural calendar.
Early Warning Signs
Each constitution has specific alarm signals. Learn to read your body before small imbalances become real problems.
Your Skin Has a Constitution Too
The 10-step routine isn't for everyone. Your constitutional type reveals exactly which ingredients, textures, and rituals your skin actually needs.
Cooling, calming ingredients. Centella, aloe, cucumber, green tea. Lightweight, water-based formulas.
Nourishing, warming ingredients. Ginseng, fermented extracts, rich oils. Occlusive, barrier-building formulas.
Three Minutes to Clarity
No account needed. No email required. Just answers.
Take the Assessment
10 questions about your body, digestion, temperature preferences, and energy patterns. Be honest - there are no wrong answers.
Get Your Constitution
Our algorithm matches your responses against 130 years of Sasang medical research to identify your constitutional type.
Receive Your Guide
Detailed, personalized insights on food, skincare, exercise, herbs, seasonal living, and your body's unique warning signs.
사상체질 · Sasang Constitution
Every person falls into one of four constitutional types, each with distinct physical traits, emotional patterns, and health needs
Tae-Yang
태양인The Visionary
Rare and intense. Brilliant pattern recognition, but prone to burnout. Needs cooling foods, gentle exercise, early sleep.
Tae-Eum
태음인The Enduring Builder
Most common type. Exceptional endurance and storage capacity. Needs vigorous exercise and sweating to stay balanced.
So-Yang
소양인The Passionate Catalyst
Quick, energetic, magnetic. Burns hot and depletes fast. Needs cooling foods and must absolutely avoid ginseng.
So-Eum
소음인The Wise Conservator
Thoughtful, perceptive, careful. Needs warmth in all forms. The one type where ginseng is genuinely beneficial.
130 Years of Korean Medical Research
Sasang constitutional medicine (사상체질의학) was developed by the Korean physician Lee Je-ma and published in his 1894 treatise Donguisusebowon (東醫壽世保元).
Unlike Western medicine's one-size-fits-all approach, Sasang recognized a fundamental truth: the same treatment that heals one person can harm another. Your constitution - determined by the relative sizes of your organs - shapes everything from your personality to your disease vulnerabilities.
Today, Sasang medicine is practiced in hospitals and clinics throughout Korea and is taught in Korean medical universities. Over a century of clinical observation has refined the constitutional classifications and treatment protocols.
Constitutional Insights
Practical guides on how your Sasang body type shapes diet, skincare, and health
Why Your Friend's Diet Works But Yours Doesn't
Keto, intermittent fasting, vegan — every popular diet has passionate fans and frustrated failures. Your body type explains the pattern.
Read article →Always Cold? Cold Hands and Feet Explained
If you're always freezing while everyone else is fine, your Sasang constitution — not just bad circulation — is the real answer.
Read article →Why Ginseng Makes Some People Sick
Korean red ginseng giving you headaches and insomnia? Two of the four body types should never take it. Find out which.
Read article →Hanbang Skincare Ingredients by Body Type
Ginseng, centella, mugwort — Korean herbal skincare isn't one-size-fits-all. Your constitution determines which ingredients help or hurt.
Read article →Frequently Asked Questions
Is this like blood type personality or MBTI?
No. Sasang constitution is a medical system, not a personality test. It's based on organ function ratios and has been used in Korean clinical practice for over 130 years. While it does correlate with certain personality tendencies, its primary purpose is determining physical health patterns, disease vulnerabilities, and appropriate treatments.
Can my constitution change over time?
No. Your constitutional type is determined at birth and remains constant throughout your life. However, your health within that constitution can improve or decline based on how well you live according to your type's needs. Think of it like height - it doesn't change, but you can be healthy or unhealthy at any height.
Why is ginseng dangerous for some people?
Ginseng is warming and tonifying - it adds energy and heat. For cold, deficient So-Eum types, this is exactly what they need. But for already-hot So-Yang and Tae-Yang constitutions, ginseng can cause headaches, insomnia, high blood pressure, and accelerate the depletion of their cooling yin energy. Many people have made themselves worse by taking ginseng thinking it would give them "more energy."
How does constitution affect my skincare?
Your constitution determines your skin's inherent tendencies (oily, dry, reactive, dull) and which ingredients will actually work for you. Hot constitutions need cooling, calming ingredients like centella and aloe. Cold constitutions benefit from warming, nourishing ingredients like ginseng and fermented extracts. This is why the same "holy grail" product works miracles for your friend but breaks you out.
How accurate is this online assessment?
Our assessment uses traditional Sasang diagnostic questions that have been refined over 130 years. For most people, it provides an accurate constitutional identification. However, for major medical decisions or if you're uncertain about your results, we recommend confirmation by a qualified Sasang medicine practitioner who can also assess physical characteristics and pulse.
Is this just for Korean people?
No. Constitutional types exist across all ethnicities. While Sasang medicine was developed in Korea and uses Korean terminology, the underlying organ patterns and constitutional archetypes are universal. People of all backgrounds have successfully used constitutional medicine to understand their health patterns.
Discover What Your Body Has Been Trying to Tell You
Stop fighting your nature. Start working with it.
Analyzing your pattern...
Comparing your responses against constitutional archetypes
Understanding Your Constitution
You might recognize yourself in these patterns...
Your Inner World
Your Body's Truth
Food as Medicine
Movement Protocol
Daily Rhythm
Constitutional Skincare
Herbal Support
Seasonal Living
Your Constitutional Tools
Check if specific foods work for your constitution
Quick check
About This Assessment
This assessment is based on Sasang Constitutional Medicine (사상의학), a traditional Korean medical system developed by Lee Je-ma in 1894. While rooted in over 130 years of clinical practice in Korea, this tool is for informational and educational purposes only.
Constitutional typing should be confirmed by a qualified Sasang medicine practitioner for medical decisions. Individual results may vary, and this assessment should not replace professional medical advice, diagnosis, or treatment.
Constitutional Matches
Products selected specifically for your constitution based on traditional Korean medicine principles and ingredient analysis
Products are recommended based on ingredient compatibility with your constitutional type. Always patch test new skincare products.