Introduction to “ingredient shopping” for Korean cosmetics | Reading retinol, CICA, and concentrations...
🌿 A Guide to Understanding Retinol, CICA, and Ingredient Concentrations
This is イェプリコ, your one-stop guide to Korea, where you can enjoy Korean beauty, travel, and food with peace of mind.
🎯 Do you know why Korean cosmetics are so strong?
When you look at the shelves at Olive Young, there is something you can understand at a glance.
“Retinol 0.1” and “CICA 95%”—both the ingredient names and concentrations are written directly on the packaging.
Japanese cosmetics mainly use experiential expressions such as “moisture care” and “feel the firmness.” Korean cosmetics put ingredient expressions such as “Retinol 0.1%” and “CICA 95%” front and center. This difference is the key to choosing products.
Once you understand this approach, the shelves at Olive Young will start to look completely different.
⚡ Trending ingredients reach store shelves quickly
In Korea’s beauty industry, new ingredients are said to be commercialized quickly after becoming popular in dermatology papers and on social media.
What’s more, it is characterized by a lineup of items that are affordably priced despite their high-concentration formulas.
✅ 3 Key Features of Innovation in Korean Cosmetics
・ Lightning-Fast Innovation: The latest findings in dermatology are quickly reflected in products
・ Affordable Even at High Concentrations: Many items are available at accessible price points, even with high ingredient concentrations
・ High Satisfaction: Because the correlation between ingredients and effects is easy to see, it is easier to choose items that suit you
※ How effects are experienced varies from person to person. We recommend a patch test before trying highly concentrated ingredients.
🇰🇷🇯🇵 Korea Takes an “Aggressive” Approach, While Japan Takes a “Protective” Approach
This is not about saying that Korean cosmetics are superior to Japanese cosmetics. Because the systems are different, the way cosmetics develop is also different. It is not about superiority or inferiority, but about differences in philosophy.
✅ Korea Takes an “Additive Care” Approach, While Japan Takes a “Subtractive Care” Approach
Korean cosmetics regulations are relatively flexible, with formulations containing high concentrations of active ingredients tending to be more readily approved. The underlying concept is to layer ingredients to “achieve the desired effects.”
While Japan has strict ingredient regulations, it excels at “subtractive” safety design that minimizes the risk of skin irritation. Formulations for sensitive skin and gentle formulas that can be used continuously for many years are areas in which Japan particularly excels.
Neither approach is inherently correct; it is practical to choose between them according to your concerns and skin condition. A common approach is to use Korean cosmetics when you “actively want to make a change” and Japanese cosmetics on days when you “want to protect your skin.”
🔍 Remember Just Two Things About How to Read Ingredient Labels
The packaging of Korean cosmetics often lists ingredient names and concentrations, and once you get used to them, you will be able to choose products intuitively. Here are the two key points to remember first.
✅ Point ① Check the Ingredient Names
・ Retinol: An ingredient used to promote skin turnover and for anti-aging care. When the concentration is indicated, 0.025–0.1% is generally considered the standard range.
・ CICA (Centella asiatica extract): An ingredient used for soothing and barrier repair. Many products prominently feature it at high concentrations, such as “95%.”
・ PDRN・EGF: Ingredients attracting attention for their ability to support skin recovery. They are also used in clinic cosmetics.
・ Niacinamide: A versatile ingredient widely used for brightening, minimizing the appearance of pores, and balancing sebum. Products containing over 10% are also available.
✅ Point ② Check the Order of the Ingredients
In both Korea and Japan, ingredient lists are required to be written in order of the amount included, from highest to lowest. Checking whether an ingredient you are interested in appears near the top of the ingredient list can give you an idea of its amount (when the concentration is not disclosed).
※ Some people may experience irritation from highly concentrated active ingredients (retinol, BHA, etc.). When using them for the first time, we recommend starting with a small amount.
✨ Summary
□ For Korean cosmetics, it is recommended to choose products based on “ingredient names and concentrations” rather than brands—this is known as “ingredient shopping”
□ Trending ingredients are commercialized quickly, and there is a tendency for even highly concentrated products to be accessible
□ Korea focuses on “additive care (targeted treatment),” while Japan focuses on “subtractive care (protection)”
□ Ingredient lists should be read as meaning that ingredients appearing higher up are present in greater amounts
□ Learning the roles of retinol, CICA, PDRN, and niacinamide makes it easier to choose products
□ Start with a small amount when trying highly concentrated ingredients for the first time
Move from “It’s popular for some reason” to “This ingredient is right for this concern.” That first step is the gateway to enjoying Korean cosmetics. Please look back at this article once more before your next trip to Korea.
We’ve brought you reliable Korean information from 『Yeppuriko』 to make Korea feel closer, safer, and more accessible.
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