First published: 2023-12-18 / Last reviewed: 2026-05-28
This is a guide to skin booster injections compiled by Dr. Choi Byeong-geun of SHINE U Clinic Konkuk (3 minutes walk from Konkuk Univ. Station Exit 1).
Many people feel that their skin becomes rough and loses its glow when the weather gets cold and dry. If your skin still feels tight and dry inside even after applying moisturizing products, there are limits to surface care alone. In this article, we will examine why inner dryness occurs and how "mulgwang" (dewy glow) injections use hyaluronic acid to replenish moisture.
Why Does Inner Dryness Occur?
When the oil-water balance is disrupted due to climate change, the skin not only on the surface but also deep inside becomes dehydrated.
- Skin becomes rough due to a lack of both oil and moisture.
- Skin tone darkens and appears dull.
- Continued dryness can easily lead to an increase in fine wrinkles.
Inner dryness is difficult to address with surface moisturizing alone, so an approach from the perspective of the dermal layer is considered.
What Hyaluronic Acid Does
Hyaluronic acid is a substance naturally found in the skin that has the property of attracting and holding moisture. Mulgwang injections utilize this hyaluronic acid to replenish moisture in the skin and help improve fine wrinkles, pores, and rough texture.
Consult about whether your skin has inner dryness
Why We Address the Dermal Layer, Not Just the Epidermis
If only the epidermal layer is treated, the effects may not last long. Skin boosters with a high concentration and low molecular weight are designed to deliver hyaluronic acid directly to the dermal layer to aid absorption, aiming for more sustained hydration and radiance.
It is reported that even with the same ingredient, absorption and duration can vary depending on molecular size and injection depth.
Duration and Cycle
The duration of mulgwang results varies depending on the formulation and skin condition, and there may be individual differences. Therefore, rather than a one-time treatment, consistent management over a regular cycle is sometimes recommended. If you are concerned about pain, it is advisable to inform us during the consultation.
Conclusion
Inner dryness can show improvement when approached from the perspective of dermal layer hydration, rather than just the surface. The appropriate formulation and cycle vary depending on your skin condition, so a diagnosis is essential first.
Inquire if you are curious about hydration and mulgwang care
Related information can be found in the skin booster injection and skin booster package guides.
Authored by: Dr. Choi Byeong-geun (Chief Director of SHINE U Clinic Konkuk / Member of the Korean Academy of Laser Dermatology and Hair, the Korean Academy of Aesthetic and Plastic Surgery Lasers, the Korean Filler Society, etc.) Last reviewed: 2026-05-28
This article provides general information about procedures and does not substitute for diagnosis or treatment. The suitability and results of procedures may vary individually.