The Most Precise Way to Understand Your Skin

The Most Precise Way to Understand Your Skin – What Your Iris Says About Your Constitution and Skin Health

Have you ever looked in the mirror and thought, “Why does my skin look so dull?” or “Why won’t these breakouts go away even after changing products?” Many people try to manage skin from the outside, but the real answer often lies within.

Your skin is not just an external layer—it’s a mirror of your internal health. When the liver is overworked, redness appears. When the stomach is weak, dullness shows. When the kidneys are tired, puffiness takes over. And to understand this mind-body-skin connection, we must first understand one thing: our constitution.

But how can we truly know our constitution? One of the most precise, non-invasive tools is iris diagnosis. And in Korea, one of the most respected experts in this field is Dr. Sung-Il Park.


Your Constitution Shapes Your Skin

  • People with heat-based constitutions tend to show more redness and breakouts → they need calming, cooling skincare
  • Those with cold-based constitutions often suffer from dryness and loss of elasticity → they need warming care that promotes circulation
  • Even if two people have acne, the cause—and the solution—can be entirely different based on constitution

Seeing Through the Iris – A Case from Dr. Park

One woman struggled with oily skin and chronic breakouts for years. Despite trying countless skincare products, nothing worked. After a simple iris scan with Dr. Park, she was diagnosed with a “heat” constitution—strong liver function but weak lungs and kidneys. With targeted herbal support and cooling skincare adjustments, her skin visibly improved within three months.

Dr. Park analyzes iris color, pattern, and subtle formations to assess each individual’s organ strength/weakness, autonomic nervous tendencies, and constitutional type. These findings are interpreted through the lens of Korea’s unique system of Sasang Medicine, leading to customized strategies for both health and skin.


What Is Sasang Medicine?

Sasang Medicine(4 types constitutional medicine), established in late Joseon(Middle century Korean) Dynasty by Lee Jae-Ma, categorizes people into four constitutional types: Taeyang(Dry), Taeeum(Wet), Soyang(Hot), and Soeum(Cold). Each type is characterized by differences in organ balance, psychological traits, and disease tendencies. Unlike generalized approaches, this system aims for personalized healing based on innate structure and response patterns.


Dr. Park Sung-Il and Youthence

Dr. Park has combined iridology and constitutional medicine over the past 25 years to help thousands understand their health from the inside out. Now, with Youthence, we bring his philosophy and insights to readers around the world.

“Skin is the voice of your body. The iris is the most precise dictionary for reading that voice.” – Dr. Park


In the next installment, we’ll dive deeper into Dr. Park’s diagnostic philosophy and introduce the concept of “R.A.S.I.(Dry,Wet,Hot,Cold)” iris types.

Stay tuned for Part 2.

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