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From Model to Skincare Researcher – Sonmi's Passionate Delivery of "Life-Changing Skincare"

2025.05.06
There are many people who struggle with skin concerns and beauty-related complexes. Even those with stunning looks who thrive in the entertainment industry seem to have their own complexes.
For those lacking confidence, there's a brand that insists, "When your skin is beautiful, your life changes," and is committed to delivering results in just seven days. This is "meeth" created by skincare researcher Sonmi. This time, we asked Sonmi about how to tackle complexes starting from the skin.

PROFILE

Sonmi

CEO of meeth Corporation
Skincare Researcher
Instagram

From Disappointment & Jealousy to Skincare Researcher

Sonmi, once a thriving model who frequently appeared on variety shows, also faced her own complexes amid the glamorous world she navigated. These experiences seem to have fueled the development of her results-driven skincare brand "meeth" that delivers outcomes in just seven days.
"I have had complexes in the past and continue to do so now. As I age, new concerns arise as well. In my 20s, while pursuing my entertainment career, I often found myself feeling down or envious when comparing my appearance to that of other models and actors.
"During that time, my lifestyle was also irregular, and I wasn't able to maintain proper skincare or a healthy diet. When my paycheck came in, I would spend it on trendy clothes and skimp on cleansing products... I was constantly battling acne, enlarged pores, and dullness, with some skin issue always on my face."
Amid her busy life, Sonmi began to shift her mindset in her late 20s.
"I realized this couldn’t continue, so I started experimenting with drugstore items and gradually moved on to department store cosmetics and salon-exclusive products. I have sensitive skin, but over time, I began to figure out what worked for me."
By adhering to usage amounts and methods, she could tell within one to two days whether a product suited her. Through trial and error, Sonmi discovered items that resonated with her, leading her to share her favorites on social media.
"Many people reached out to me on social media, saying, ‘My skin has improved! Thank you!’ These words of appreciation encouraged me and helped me gain confidence."
Sharing her skin's transformation on social media and receiving positive feedback from many inspired the creation of Meeth.

100% Satisfied Products! The No-Compromise Development Philosophy of Meeth

Meeth was launched with a desire to deliver quality

Sonmi has consistently shared valuable information on social media through trial and error with her own skin. However, she struggled to find the perfect product.
“Even with items I liked, there were always things I thought could be improved, so I never found something I was 100% satisfied with. When I mentioned this to my husband, he suggested that I try developing something myself, which led me to decide to launch my original brand around the age of 28.”
The motivation for her startup was not a desire to shift from celebrity to entrepreneur.
“Meeth was started out of the genuine desire to deliver really great products to everyone. Thanks to the voices I receive from everyone, I gradually gained confidence. I want our brand to enrich lives and guide people in a positive direction, just like it has for me, through skincare.”
Meeth carries the message, “Having beautiful skin changes your life,” and “Beautiful skin is the best jewelry.”
“When I struggled with skin troubles, I used heavy makeup. I realized I was putting in a lot of effort. When I saw beautiful people on the street, they looked gorgeous even in simple outfits like jeans and t-shirts. That made me realize that beautiful skin is indeed the best jewelry.
"When I'm with friends, there are times when, even without bad intentions, I'm pointed out for my skin troubles, or I notice others looking at my skin. When my skin is calm, I naturally want to meet people or go out, and my demeanor changes, even affecting my personality. I want to share these experiences with many people.”

Only Items that All Employees Are Satisfied with Are Released

Meeth focuses on developing products that deliver results in seven days.
“The reason for the seven-day timeline is that, after using many cosmetic products, I found it hard to sustain a routine for a month. If I don't see results quickly, I can't stay motivated with skincare. But seven days is manageable, and if the results are noticeable in that time, I can keep motivated with skincare beyond it.
"Therefore, at Meeth, all employees test prototypes, and we won’t release anything that doesn’t show a difference in seven days. We have many projects that have been put on hold, and the non-chemical sunscreen we started creating in 2019 hasn't reached the pass mark yet, so it hasn’t been released.”
The sunscreen is also in development with no compromises, ensuring it is non-chemical, does not leave a white cast, and uses advanced UV scattering agents.
What might seem natural to Sonmi is said by others to be “an extraordinary level of dedication.” Each item is crafted with meticulous care, selecting factories for specific qualities, and Sonmi personally visits raw material exhibitions both domestically and internationally to validate each ingredient.
“Different factories excel in different areas, such as emulsification or unique technologies. I search for the best factory to create the products I want, which means the supplier varies for each item.
The water used as a raw material might be the same in ingredient listings, but the best water for skin is different from that for hair. I want to deliver something that I find truly moving, which is why I pursue these details meticulously.”
Sheet mask
The sheet mask that sold out immediately after its release was initially not intended for launch by Sonmi.
“I previously thought sheet masks were unnecessary for skincare, and I said I would never use one. But the employees wanted a sheet mask, and they created something that moved me!”
The sheet mask, utilizing fermented soybean extract and minimizing preservatives while avoiding liquid drips, impressed even the uncompromising Sonmi. It was released in limited quantities and surprisingly sold out within a week. Meeth is focused on developing items at an emotional level, rallying the strength of the employees around Sonmi.
MORERICH ESSENTIAL LOTION
Many people report that indulging in careful skincare with Meeth leads to noticeable changes in dryness and a natural glow within two to three days. The lotion has even received anti-wrinkle evaluations, with numerous voices noting that the fine lines around the eyes become less prominent.
“I would love for everyone to use the entire Meeth line, but if I had to recommend just one product, it would be the ‘MORERICH ESSENTIAL LOTION.’ I have studied dermatology and understand how critical it is to use the right products immediately after washing your face.
"To truly feel results in seven days, I encourage using both the lotion and cream. I hope people can assemble their products according to their concerns and budget.”
Sonmi transformed her own insecurities into confidence through skincare. Why not experience the transformation of both skin and life with the uncompromisingly developed Meeth?

Text by Rie Tsugita (Beautician / Writer)

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