What Does Serum Do? | How & When to Use Face Serum | Noni Nectar

by Preet on Oct 13, 2026

Written by Preet at Noni Nectar

What does serum do? A face serum is a lightweight, concentrated skincare step that delivers a targeted cosmetic benefit, such as a brighter, smoother-looking complexion. Because it is thinner than a moisturiser, it is applied after toner and before cream, so it sits closest to the skin. The TeMana Noni Brightening Serum, made with pure Tahitian noni, enhances skin's radiance and softens the look of fine lines and wrinkles with just a few drops.

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If you have ever stood in front of a skincare shelf wondering whether you actually need a serum, you are not alone. Serums are one of the most asked-about steps in any routine. Below, we cover what a face serum does, how to use it, when to apply it, and how it differs from moisturiser and night cream, so you can build a routine that makes sense for your skin.

What Does Serum Do? | The Short Answer

Think of your routine in three jobs: clean the skin, treat the skin, then seal in hydration. Cleanser and toner handle the first job. Moisturiser and night cream handle the last. A serum is the treatment step in the middle.

Serums are typically thin, fast-absorbing liquids or light gels. That lighter texture means you can layer them easily under other products, and only a small amount is needed. Different serums focus on different goals, such as radiance, hydration or the look of texture. A brightening serum focuses on helping skin look more radiant and even.

In short, a serum does not replace your moisturiser. It adds a focused step that your other products are not designed to do on their own.

What TeMana Noni Brightening Serum Does | Key Benefits

TeMana Noni Brightening Serum is Step 3 of the five-step TeMana ritual. It is a lightweight brightening serum for anyone who wants a more radiant, smoother-looking complexion. According to the product details, it:

Boosts a radiant, glowing look
Visibly improves skin texture and the look of elasticity
Softens the appearance of fine lines and wrinkles
Layers easily under moisturiser or night cream, with just a few drops needed
Is made with pure Tahitian noni

How to Use Face Serum | Step by Step

Using a face serum is simple once you know where it fits. Here is the method we recommend for TeMana Noni Brightening Serum:

Cleanse. Start with a clean face so the serum is not sitting on top of daily buildup.
Tone. Apply toner as the step before serum to refresh skin and add a layer of hydration.
Apply a few drops of serum. Warm a few drops between your fingertips and press them gently into the face and neck. Pressing, rather than rubbing, helps you spread a small amount evenly.
Give it a moment. Let the serum settle for a short while before your next layer.
Finish with cream. Follow with moisturiser in the morning or night cream in the evening.

A common mistake is using too much. More product does not mean faster results; a few drops is enough to cover the face and neck. Another tip is to avoid the eye area and introduce one new active product at a time, so you can see how your skin responds.

When to Apply Serum | Morning, Night or Both

The rule for layering skincare is thinnest to thickest. Watery and light textures go on first, and richer creams go on last. That is why serum always comes after toner and before moisturiser or night cream.

As for time of day, it depends on the serum. TeMana Noni Brightening Serum is designed for use morning and night. Using it twice a day keeps your routine consistent, and consistency is what helps a brighter-looking complexion build over time. In the morning, remember that sunscreen is your final step after moisturiser.

Serum vs Moisturiser vs Night Cream | Comparison Table

These three products are often confused, but each has a different job. Here is how they compare in the TeMana routine:

Product	Main job	Texture	When to use
Serum	Targeted treatment step for a radiant, smoother-looking complexion	Lightweight; a few drops	Morning and night, after toner
Moisturiser	Locks in hydration and helps prevent dryness through the day	Lightweight cream	Morning, after serum and before sunscreen
Night cream	Rich overnight hydration for softer, smoother-looking skin by morning	Richer cream	Evening, as the final step

So, serum vs moisturiser is not an either-or choice. The serum handles the targeted job, and the moisturiser or night cream seals it in and keeps skin comfortable.

Morning vs Evening Routine | Where Serum Fits

Morning routine

TeMana Noni Brightening Cleanser: massage onto damp skin and rinse.
TeMana Noni Brightening Toner: sweep on with a cotton pad or press in with your palms.
TeMana Noni Brightening Serum: press a few drops into face and neck.
TeMana Noni Brightening Moisturiser: smooth a small amount over face and neck.
Your usual sunscreen.

Evening routine

Cleanser, to remove the day.
Toner, to refresh and prep.
Serum, a few drops pressed in.
TeMana Noni Brightening Night Cream: the last step before bed.

Want the whole routine in one box? The TeMana Skin Care Gift Set brings the steps together, and it makes an easy gift for someone who loves skincare.

Why This Product | TeMana Noni Brightening Serum

Lightweight texture: a few drops layer easily under moisturiser or night cream.
Focused on radiance: designed to boost a glowing, radiant-looking complexion.
Visible texture benefits: visibly improves skin texture and softens the appearance of fine lines.
Morning and night: one serum for both routines.
Part of a system: Step 3 of the TeMana ritual, made with pure Tahitian noni.

Why Choose Noni Nectar | Shop With Confidence

Genuine products, carefully chosen for our wellness and skincare range.
Tracked delivery Australia-wide, free on orders over $99.
Afterpay available at checkout.
Friendly support by email at noninectar@proton.me.

Looking for more? Browse the full Noni Nectar range.

Frequently Asked Questions | Face Serum

What does serum do for your face?

A face serum is a lightweight, concentrated step that delivers a targeted cosmetic benefit, such as a more radiant, smoother-looking complexion. It sits between toner and moisturiser so it can work closest to the skin.

How do you use face serum?

After cleansing and toning, press a few drops into the face and neck, let it settle for a moment, then follow with moisturiser in the morning or night cream in the evening.

When should I apply serum in my routine?

Apply serum after toner and before moisturiser or night cream. The general rule is thinnest to thickest texture, so serum comes before creams.

Should I use serum in the morning or at night?

Many serums, including TeMana Noni Brightening Serum, are designed for both. Using it morning and night keeps your routine consistent, which matters for a visible difference.

What is the difference between serum and moisturiser?

A serum is light and concentrated, focused on a specific skin goal. A moisturiser is creamier and helps hold hydration in the skin. Most routines use serum first, then moisturiser on top.

Can I use serum without moisturiser?

You can, but most people get a more comfortable result by following serum with a moisturiser or night cream, which helps keep skin feeling soft and hydrated.

How many drops of face serum should I use?

A few drops are enough for the face and neck. Press them gently into the skin rather than rubbing.

How long does it take to see results from a serum?

Skin can look more radiant soon after applying. Changes in the look of texture and fine lines build with consistent daily use, and results vary from person to person.

Can I use TeMana serum with my other skincare?

Yes. It layers well between toner and moisturiser. If you already use other active serums, introduce one new product at a time so you can see how your skin responds.

Is face serum suitable for sensitive skin?

Everyone's skin is different. Patch test before first use, avoid the eye area and stop using the product if irritation occurs.

Ready to Add a Serum to Your Routine? | Shop Now

If your routine stops at cleanser and moisturiser, a serum is the simplest way to add a focused step for radiant-looking skin. Start with a few drops of TeMana Noni Brightening Serum, morning and night, and give it consistent use.