Essence vs Serum: What's the Difference?

Aren't They Basically The Same Thing?

One of the most common skincare questions we hear is:

"What's the difference between an essence and a serum?"

Because both products are lightweight and applied before moisturiser, it's easy to assume they do the same thing.

In reality, essences and serums play very different roles within a skincare routine.

At ST.SAJ, we believe both steps can work together to support healthy, hydrated skin.

What Is An Essence?

An essence is a lightweight hydrating product designed to replenish moisture and prepare the skin for the products that follow.

Think of an essence as the bridge between cleansing and treatment.

The primary purpose of an essence is to:

• Deliver hydration

• Support the skin barrier

• Improve skin comfort

• Prepare the skin for treatment products

At ST.SAJ, Peptide Power Essence is designed to support hydration and healthy skin function while creating the ideal foundation for your treatment serum.

What Is A Serum?

A serum is designed to deliver targeted ingredients that address specific skin concerns.

Unlike an essence, a serum typically focuses on a particular skin goal such as:

• Hydration

• Brightness

• Clarity

• Skin texture

• Barrier support

Serums often contain more concentrated active ingredients than an essence.

Why We Use Both

One of the principles that inspires ST.SAJ is layering hydration before treatment.

Rather than choosing between an essence and a serum, we see them as complementary steps.

First, the essence helps replenish hydration.

Then, the serum delivers targeted ingredients based on your skin's needs.

Together, they create a more balanced and effective routine.

The ST.SAJ Routine

Morning

1. Water Rinse

2. Peptide Power Essence

3. Treatment Serum

4. Moisturiser

5. SPF

Evening

1. Glow Cleanse

2. Clear Cleanse

3. Peptide Power Essence

4. Treatment Serum

5. Moisturiser

Frequently Asked Questions

Do I need both an essence and a serum?

Not always, but using both allows you to focus on hydration while also targeting specific skin concerns.

What comes first, essence or serum?

Essence is generally applied before serum.

Can I skip essence?

You can, but you may miss out on the hydration and skin-prepping benefits that an essence provides.

Final Thoughts

While essences and serums may appear similar, they serve different purposes within a skincare routine.

At ST.SAJ, we believe healthy skin starts with hydration, which is why an essence remains an important step in our routine-first approach to skincare.