Understand your skin and build a routine that works.
If your skin feels greasy by lunchtime or your make-up never seems to stay put, you're in the right place.
Oily skin is one of the most common skin types, but it's also one of the easiest to misunderstand.
Many people try to scrub away the oil or skip moisturiser altogether. Unfortunately, that can sometimes make things worse.
The good news is that oily skin doesn't need harsh products. It needs the right balance.
In this guide, we'll explain what oily skin is, what causes it, which ingredients are worth looking for and how to build a simple routine that helps keep excess oil under control.
Oily Skin at a Glance
Short on time? Here's the quick version.
- Oily skin is caused by excess sebum (natural oil).
- Oil isn't bad — your skin actually needs it.
- Gentle skincare usually works better than harsh products.
- Ingredients like Niacinamide and Salicylic Acid can help balance oily skin.
- A simple routine is often more effective than using lots of products.
Quick Facts
| Skin Type | Oily |
|---|---|
| Main Concern | Excess sebum (natural oil) |
| Often Looks Like | Shine, enlarged pores, blackheads |
| Best Ingredients | Niacinamide, Salicylic Acid, Green Tea |
| Avoid | Over-cleansing and harsh alcohol-based products |
| Routine | Simple and consistent |
What Is Oily Skin?
Let's clear up one of the biggest myths first.
Oil isn't bad.
Your skin naturally produces an oil called sebum.
Think of it as your skin's built-in moisturiser. It helps protect your skin barrier, prevents moisture loss and keeps your skin feeling comfortable throughout the day.
Oily skin simply means your skin produces more sebum than it needs.
That extra oil can leave your skin looking shiny and may contribute to enlarged pores, blackheads and occasional blemishes.
The aim isn't to remove every drop of oil. It's to help your skin stay balanced.
💡 Did You Know?
Oily skin can still become dehydrated.
Producing more oil doesn't always mean your skin has enough water, which is why lightweight hydration is still important.
How Do You Know If You Have Oily Skin?
You may have oily skin if you notice:
- Your face becomes shiny during the day.
- Your make-up doesn't last as long.
- Your pores appear larger than you'd like.
- You regularly get blackheads.
- You experience occasional spots or congestion.
Many people only notice oil around their forehead, nose and chin — often called the T-zone — while others have oily skin across their whole face.
Both are completely normal.
Why Is My Skin So Oily?
There's rarely one simple answer. For most people, it's a combination of genetics, hormones and everyday habits.
Genetics
Sometimes it's simply inherited. If oily skin runs in your family, there's a good chance you will have it too.
You can't change your skin type, but you can choose products that help keep it balanced.
Hormones
Hormones have a big influence on oil production. That's why oily skin often becomes more noticeable during puberty, around your menstrual cycle, during pregnancy or during stressful periods.
Warm Weather
Ever noticed your skin feels oilier during summer? You're not imagining it. Heat and humidity can make excess oil much more noticeable.
Washing Too Often
This is one of the most common mistakes. Washing your face too often can strip away your skin's natural oils.
Your skin then tries to replace what it's lost by producing even more oil.
Heavy Skincare Products
Rich creams aren't always the best choice for oily skin. Lightweight products are often more comfortable and less likely to leave your skin feeling greasy.
Ingredients Worth Looking For
You don't need ten different active ingredients. A few well-chosen ones can make a real difference.
- Niacinamide — helps balance excess oil while supporting your skin barrier.
- Salicylic Acid (BHA) — helps clear blocked pores and blackheads.
- Centella Asiatica — helps calm and support the skin barrier.
- Green Tea — rich in antioxidants and helps soothe the skin.
- Hyaluronic Acid — provides lightweight hydration without feeling heavy.
Ingredient Guide
| Ingredient | Helps With | Best For |
|---|---|---|
| Niacinamide | Excess oil | Everyday use |
| Salicylic Acid | Blackheads and congestion | Oily skin |
| Centella | Calming and barrier support | Sensitive oily skin |
| Green Tea | Soothing | Combination skin |
| Hyaluronic Acid | Hydration | Oily but dehydrated skin |
Common Mistakes
These mistakes are more common than you might think.
- Washing your face several times a day
- Skipping moisturiser
- Using harsh alcohol-based products
- Picking spots
- Changing products every week
🌿 Skin Be You Tip
Healthy oily skin shouldn't feel tight after cleansing.
It should feel clean, comfortable and balanced.
Build Your Oily Skin Routine
You don't need ten different products. For most people, these five steps are more than enough.
1. Cleanse
Use a gentle cleanser morning and evening to remove excess oil and impurities without stripping your skin.
Recommended:
COSRX Low pH Good Morning Gel Cleanser
A gentle cleanser that helps remove excess oil and impurities without leaving your skin feeling stripped.
2. Balance
Choose a lightweight toner that refreshes without drying your skin.
Recommended:
Some By Mi AHA BHA PHA 30 Days Miracle Toner
A lightweight toner that helps refresh oily and congested skin.
3. Control
Apply a serum containing ingredients such as Niacinamide.
Recommended:
Beauty of Joseon Glow Serum (Propolis + Niacinamide)
A balancing serum that fits well into an oily skin routine.
4. Hydrate
Keep your skin hydrated with a lightweight gel or lotion moisturiser.
Recommended:
iUNIK Centella Calming Gel Cream
A lightweight gel moisturiser that helps keep skin comfortable without feeling heavy.
5. Protect
Finish every morning with a broad-spectrum SPF.
Recommended:
MISSHA All-Around Safe Block Soft Finish Sun Milk SPF50+ PA+++
A lightweight SPF to help protect oily skin every day.
Lifestyle Tips for Oily Skin
Skincare is only part of the picture. These habits can also help support healthier-looking skin:
- Wash make-up brushes regularly.
- Change your pillowcase every week.
- Avoid touching your face throughout the day.
- Stay consistent with your routine.
- Be patient — most skincare products take several weeks to show results.
When Will I See Results?
This is one of the questions we're asked most often.
Some products leave your skin feeling fresher within a few days.
Visible improvements in excess oil and congestion usually take a little longer.
As a general guide, give your routine around six to eight weeks before deciding whether it's working.
Consistency almost always beats constantly changing products.
Frequently Asked Questions
Can oily skin still become dehydrated?
Yes. Oily skin can produce plenty of oil while still lacking water.
Should I moisturise if I have oily skin?
Absolutely. Choosing the right lightweight moisturiser helps support your skin barrier.
Should I wash my face more than twice a day?
Usually not. Cleansing morning and evening is enough for most people.
Does oily skin always cause acne?
No. Oily skin can increase the chance of blocked pores, but not everyone with oily skin develops acne.
Ready To Build Your Routine?
Finding the right skincare doesn't have to be confusing.
Explore our carefully selected Oily Skin Collection and discover products chosen to help keep your skin balanced, comfortable and healthy every day.
Skin Be You — helping you learn first, buy second.