LEVEL 1
Seasonal & Environmental Skincare
"I use the same lotion and moisturizer all year round" — sound familiar? But think about it: you change your clothes with the seasons, so why wouldn't you change your skincare?
In reality, your skin's condition changes dramatically with the seasons. Temperature, humidity, and UV levels — every time these three environmental factors shift, your skin faces different stresses and needs different care.
Spring seems like an easier season for skin as temperatures rise after winter's dryness. However, new stressors like pollen and yellow sand appear. Large temperature fluctuations make skin prone to sensitivity, and barrier function becomes unstable.
Summer is when UV levels peak, sebum production increases, and sweat washes away the skin's moisture components — a true triple threat. Add air conditioning dryness on top. "My skin is oily so I don't need moisturizer" is a major misconception.
Autumn is when summer UV damage surfaces as dark spots and dullness. Simultaneously, humidity drops rapidly, making it a preparation period for winter dryness. You need to recover from damage while strengthening hydration — a surprisingly busy season.
Humidity drops below 30% in winter. Transepidermal water loss (TEWL) increases and barrier function declines. Heating further dries indoor air, and skin loses moisture from both inside and outside. Rich moisturizing care is essential.
When the skin's environment changes this much, a constant care routine cannot keep up. Using heavy winter cream in summer causes stickiness and breakouts. Using only light summer lotion in winter provides insufficient moisture. Adjusting care to the season is fundamental to maintaining skin health.
In the next level, we focus on summer skincare with specific strategies for UV, sweat, and sebum.
KAIAN develops skincare products based on scientific evidence.
Feel free to ask questions about ingredients and formulations.
