How to Read a Moisturizer Ingredient List — A Beginner's Guide
Before comparing Korean Moisturizers vs. American-Market Moisturizers, let's learn how to read the ingredient list.
Have you ever picked up a moisturizer and looked at the back of the package, only to see a long list of ingredients you couldn't recognize?
You are not alone.
Names like Glycerin, Cetearyl Alcohol, Dimethicone, Ceramide NP, and Sodium Hyaluronate can look complicated at first. But you don't need to be a cosmetic chemist to understand the basics.
The first step is simply learning how to read the list.
1. Ingredients are usually listed in order
In the U.S., cosmetic ingredients are generally listed in descending order of predominance. In simple terms, ingredients used in larger amounts usually appear earlier in the list.
However, this does not mean that the first ingredient is always the most important ingredient for your skin.
Some ingredients are used in very small amounts but can still have an important role in a formula.
2. Don't judge an ingredient by its name
An unfamiliar ingredient is not automatically bad.
For example:
| Ingredient | Common role |
|---|---|
| Glycerin | Humectant |
| Hyaluronic Acid | Humectant |
| Squalane | Emollient |
| Dimethicone | Occlusive |
| Ceramides | Skin-conditioning ingredients |
| Petrolatum | Occlusive |
The important question is not simply:
“Is this ingredient good or bad?”
A better question is:
“What role does this ingredient play in the formula?”
3. Look at the formula as a whole
A moisturizer is usually made with a combination of ingredients that perform different jobs.
One ingredient may help attract and retain water. Another may help soften the skin. Another may help reduce moisture loss from the skin's surface.
That's why looking at one ingredient alone can give you an incomplete picture.
A simple example
Imagine you see this ingredient list:
Water, Glycerin, Squalane, Dimethicone, Ceramide NP...
You can start reading it like this:
| Ingredient | What you can learn |
|---|---|
| Water | Main base of the formula |
| Glycerin | Humectant |
| Squalane | Emollient |
| Dimethicone | Occlusive |
| Ceramide NP | Skin-conditioning ingredient |
You don't need to memorize every ingredient.
Start by recognizing a few common ones and understanding their basic roles.
What should you look for next?
Now that you know how to look at an ingredient list, the next step is understanding the three basic groups of moisturizing ingredients: humectants, emollients, and occlusives.
Once you understand these three groups, ingredient lists become much easier to read.