AI-translated archive post
Limeeseok Theme Dermatology Clinic (Main Branch) · 임이석테마피부과의원 · May 30, 2020
Director Im Lee-seok of Imi-seok Theme Dermatology appeared on MBC’s *Good Day* in the segment “Spring Skin Lasts for a Year!” Spring skin lasts for a year! What is the first reaso...
AI translation notice
This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.
Clinic: Limeeseok Theme Dermatology Clinic (Main Branch)
Original post date: May 30, 2020
Translated at: April 25, 2026 at 8:52 AM
Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.
Director Im Lee-seok of Imi-seok Theme Dermatology appeared on MBC’s Good Day in the segment “Spring Skin Lasts for a Year!”
Spring skin lasts for a year!
What is the first reason skin gets damaged in spring?!
Fine dust! Skin that is continuously exposed to fine dust loses elasticity and develops more wrinkles. Fine dust is at its highest in spring, which makes it especially problematic. People often worry about fine dust only in relation to the respiratory system and blood vessels. It does affect respiratory diseases and vascular health, but it also affects the skin. Fine dust has a diameter of 2.5 μm or less, while the diameter of pores is about 20–50 μm, so because it is about one-tenth the size, fine dust particles can accumulate in pores. Fine dust that accumulates in pores causes skin inflammation. Fine dust also contains hazardous heavy metals and even carcinogens, which makes it dangerous. If the skin barrier is already damaged, it can penetrate through the barrier and into cells, making it even more dangerous.
The dermis contains a lot of collagen, which helps prevent loss of elasticity and wrinkles. When fine dust penetrates the dermis, it causes inflammation and destroys collagen. As a result, the skin loses elasticity and wrinkles develop.
What is the second reason skin gets damaged in spring?!
It is ultraviolet rays. Spring ultraviolet rays are about twice as strong as winter ones and similar to the ultraviolet rays of midsummer. However, people tend to pay attention only to summer ultraviolet rays and are unprotected against spring ultraviolet rays, which damages the skin. That is why sunscreen should be applied throughout all four seasons. Sunlight also comes in through windows, so in fact it is better to apply sunscreen at home as well, except when sleeping.
What is the third reason skin gets damaged in spring?!
It is the skin-dwelling mite Demodex folliculorum. Being nocturnal, Demodex mites cause itching and interfere with sleep. They also feed on sebum, so their numbers increase in spring when sebum secretion is high. They can cause various skin problems such as acne, enlarged pores, and pigmentation spots.
How many Demodex mites are considered normal?
Fewer than 10 mites per 1 cm² of skin surface is considered normal skin. If there are more than that, it is better to eliminate them. However, the number of Demodex mites varies widely, usually ranging from thousands to hundreds of millions. Since Demodex mites feed not only on sebum but also on sugar components in the blood, caution is needed in cases of diabetes and obesity.
Special solutions for eliminating Demodex mites
Sebum is secreted while you sleep and gets on bedding, so it is better to change bedding often. Washing is important, but drying is important too.
Wearing a mask for long periods can increase sebum secretion due to skin irritation. It creates a humid environment that is ideal for Demodex mites to live in. Because sebum and Demodex mites promote skin inflammation and aging, it is better to replace masks frequently.
The ideal skin acidity is pH 4 to pH 6.5.
Continue browsing
Return to the source archive for more translated posts, or open the Korean clinic profile to compare other public channels.