Why Skin Becomes Sensitive with Every Seasonal Transition and How to Cope

"It was fine yesterday, but today it suddenly broke out." This is a phrase often seen in dermatology consultations or community posts when the seasons change. Even when no particularly new product has been used, if the face feels hot or flaky, it's likely a natural skin reaction to the changing season in most cases. However, during this period, it's easy for things not to stop at sensitive skin alone—dryness and irritation can repeat, leaving the skin texture rough and giving the impression of reduced elasticity. That's why seasonal skin changes need to be addressed not just with on-the-spot soothing care, but also within one's regular elasticity and wrinkle care routine.

In this article, we'll look at the background behind why skin becomes especially sensitive during seasonal transitions, what changes appear at different stages, and the care steps that can be practiced in daily life.

Why skin becomes sensitive during seasonal transitions

Skin is an organ that adjusts its own balance of moisture and oil to match changes in external temperature and humidity. However, during seasonal transitions, temperature differences can be large even within a single day, and humidity can also swing widely, so there are cases where the skin can't keep up with this pace.

In particular, the stratum corneum acts as a barrier that protects the skin from external stimuli, but rapid changes in temperature and humidity can lower this barrier's moisture-retaining ability. When the barrier is weakened, the skin can react more sensitively even to stimuli that wouldn't normally be a problem, such as cleansing, UV exposure, or indoor air.

Also, during seasonal transitions, the autonomic nervous system's process of adapting to temperature changes can make blood vessel responses more sensitive. Because of this, some people experience their face flushing or feeling hot easily, though this varies greatly depending on individual skin condition and overall state.

The Relationship Between Heating/Cooling and Skin Dryness

Seasonal transition periods often overlap with the switch from cooling to heating, or vice versa. Heating and cooling devices tend to rapidly lower indoor humidity, which can cause moisture on the skin's surface to evaporate faster than usual.

Frequently moving between environments with large indoor-outdoor temperature differences can also burden the skin. Repeatedly going from a warm indoor space to sudden cold wind, or the reverse, can easily throw off the skin's oil and moisture balance.

During periods when these environmental factors overlap, it's easy to feel tightness or flaking on the skin, which can be seen as a signal from the skin barrier.

Sensitivity Symptoms That Differ by Timing

During spring and fall, when the daily temperature range is large, tightness and redness in the skin tend to stand out. This is because chilly mornings and evenings combined with dry winds during the day repeat continuously.

Between late fall and early winter, as heating begins, indoor humidity drops sharply, leading more people to experience flaking or fine cracks in the skin.

During the transition from summer to fall, temperatures begin to drop while UV exposure has already accumulated, sometimes leaving the skin exposed to fresh irritation without a chance to recover. In this way, even within the same 'seasonal transition,' the type of burden the skin experiences differs slightly depending on the direction of the season.

A Step-by-Step Care Routine — Try Organizing It Like This

Step one, keep cleansing to a minimum. Washing briefly with lukewarm water and choosing a low-irritation formula rather than a strong cleanser can help.

Step two, reduce the number of skincare steps. Rather than layering multiple new or functional products, simplifying to just the essential moisturizing steps during this period can help reduce burden on the skin.

Step three, focus on barrier care. Products containing ingredients like ceramide, panthenol, and allantoin are known to either resemble the lipids that make up the skin barrier or help with soothing and moisturizing, making them a good option during sensitive periods.

Step four, finish with solid moisturizing. Finishing with a cream containing oil-based ingredients that help lock in moisture can help protect the skin's surface even in dry environments.

Step five, manage indoor humidity. Simply using a humidifier or ventilating frequently can reduce the burden on the skin.

Seasonal Transition Care, Viewed Through Ingredients

Seasonal transition skin care can be approached by focusing on three main categories of ingredients. First, look after ceramide NP, cholesterol, and palmitic acid, which belong to the same lipid family that makes up the skin barrier. Then consider ingredients like trehalose and betaine that help hold onto moisture, along with soothing and moisturizing ingredients like panthenol and allantoin that help calm irritated skin. Checking whether these three categories are evenly covered is the basic checkpoint for managing skin condition during seasonal transitions.

Ingredients derived from centella asiatica have also long been used as a category of ingredients aimed at soothing sensitized skin. However, since the felt effect of these ingredients can vary depending on individual skin condition and usage environment, it is recommended to first test a small amount with a low-irritation product.

Why finishing moisturizer, cream selection, matters

During times like seasonal transitions when the skin barrier is easily unsettled, the last step of skincare, that is, the role of the cream, becomes more important. This is because after the moisture-supplying step, the cream's basic function is to form a layer with oil so that moisture doesn't escape.

에르쯔틴 리제너레이티브 실트 크림 is a rich-type cream that contains barrier lipid family ingredients like ceramide NP, cholesterol, and palmitic acid together with panthenol, allantoin, and centella asiatica-derived ingredients, and can be considered as an option for the finishing moisturizing step during seasonal transitions. However, during periods of heightened sensitivity, it is recommended to test with a small amount first and gradually expand the scope of use.

Reviewed by 아비쥬의원 의료진. (August 31, 2026)