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Does sebum production increase by 10% every time the temperature rises by 1°C?
During seasons of hot and humid weather, skin can easily become tired and shiny. Research has even reported that sebum production increases by 10% every time the temperature rises by 1°C. In summer, the skin struggles with excessive secretion of sweat and oil. If you frequently use oil-absorbing sheets or wash your face excessively to control this shine, you may instead damage the skin barrier and experience the side effect of developing dehydrated oily skin, where the inside is dry but the surface is oily.
Excessive cleansing or over-removal of oil can wash away the essential lipid barrier on the skin’s surface. When the barrier is damaged, moisture inside the skin evaporates quickly, leaving the inside dry. To protect itself, the skin then produces more oil as a compensatory response. This condition is commonly referred to as “dehydrated oily skin.”
When oil and sweat increase, they can clog pores and cause breakouts. In addition, the skin’s supportive structure can become loose, making the entire face appear saggy. Simply wiping away the oil on the surface is only a temporary solution and cannot correct the imbalance of oil and moisture continuously produced within the skin. This is why a precise approach is needed—one that maintains the skin barrier’s moisture while selectively controlling unnecessary oil and sweat gland activity.

Can Skin Botox suppress secretion from the sebaceous and sweat glands?
Skin Botox can be used to manage summer sebum concerns from within the skin. Rather than being injected deeply into the muscle layer to paralyze facial expressions, the product is injected very thinly and evenly into the superficial skin layer to help stabilize the skin environment.
Botox (botulinum toxin) blocks the release of acetylcholine, a neurotransmitter. Acetylcholine not only causes muscles to contract; it is also a neurotransmitter that stimulates the sweat glands and sebaceous glands.
Therefore, when Botox is injected evenly into the superficial layer of the skin, or the dermis, signals traveling to the sebaceous and sweat glands are blocked. This can reduce sweat and sebum secretion and leave the face feeling less greasy.

The product that penetrates beneath the epidermis regulates the fine nerve signals traveling to the sebaceous and sweat glands, naturally suppressing excessive secretion. As less oil is released, the skin remains smoother and less greasy. At the same time, the elastic cells in the dermis are stimulated, helping tighten the facial texture that had become loose. As a result, moisture is maintained within the skin while the surface develops a fresh, dewy glow without excessive shine.
Main cause of the lifting effect
The main reasons the face looks firmer and the pores appear tighter after Skin Botox are that reduced sebum production causes the pore openings to contract, while the superficial fine muscle layer of the skin is relaxed, allowing the skin to appear tauter.
Collagen regeneration effect
Some studies have reported that botulinum toxin stimulates fibroblasts in the dermis and induces collagen synthesis. However, compared with laser treatments or skin booster procedures, this is difficult to regard as the primary purpose or mechanism. The skin-regeneration signal caused by the micro-needles themselves, known as the wounding effect, also contributes.

Because this procedure does not stimulate or intentionally damage the skin tissue, you can feel reassured that significant swelling or long-lasting marks are unlikely after treatment. However, individual differences can be substantial, and it is important to note that temporary marks, or embossed bumps, are inevitable. In general, you can quickly return to your daily activities without a separate extended recovery period, even with a busy schedule.

A skin environment disrupted by excessive oil production is difficult to restore simply by changing cosmetics or wiping the surface. The process should also include precise control of the flow of oil and moisture within the skin and recovery of superficial elasticity. At Bellevue Clinic near Gangnam Station, where customized treatments are performed after carefully measuring each individual’s sebum production and skin barrier condition, we invite you to comfortably care for clear, supple, radiant skin without excessive shine throughout all four seasons. Thank you!

“Focused on specialized skin analysis”
Bellevue Clinic
With the Mark-Vu skin diagnostic examination, you can check various skin concerns at once—including skin texture, pigmentation, pores, wrinkles, skin tone, dark circles, radiance, redness, melanin, sebum, and acne-causing bacteria—that are difficult to identify with the naked eye.
Bellevue Clinic scientifically analyzes the skin to determine the treatments that are needed. Through kind and detailed consultations, we will strive to provide the treatments that are most effective and beneficial for each patient.


💎Bellevue Clinic💎
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Use of genuine products in the prescribed amount
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Experienced medical staff with many years of treatment experience
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Open for consultations on Sundays and public holidays
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Customized treatments after Mark-Vu skin analysis
🌸Botox · fillers · thread lifting · lifting · obesity treatments
🌸Scars · pores · various types of pigmentation · acne · hair removal
🌸Contour injections · CoreSculpt · NobleShape
HPL · V-Olet injections
🌸Diet medication prescribed after an InBody measurement
🌸Hair-loss medication and Viagra prescriptions
📱Treatment inquiries and appointments
02-533-1200
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