Hair Serum

How to Use Hair Serum for Stunning Results: Do’s and Don’ts

By Upasana KakatiAug 14, 2025 4 min read

What is Hair Serum?

Top 5 Benefits of Hair Serum

How to Apply Hair Serum?

When Do You Use Hair Serum?

Tips for Using Hair Serum

What is the Difference Between Hair Serum and Hair Oil?

Frequently Asked Questions

Healthy, beautiful hair is something most of us dream about. With so many hair care products and tips out there, it can be hard to know what really works. One product that can make a big difference is hair serum. It’s known for adding shine, reducing frizz, and protecting hair from damage, all in just a few drops.

The demand for hair serums is growing fast, with the market expected to reach $1,612.9 million by 2026. A big reason for this rise is the belief that healthy, glossy hair helps maintain a youthful look, something many people value.

In this article, we’ll talk about how to use hair serum, what it does, and which types work best for different hair needs. With the right tips, you can get smoother, shinier, and more manageable hair every day.

What is Hair Serum?

Hair smoothing serum coats the outside of the hair to add shine, smoothness, and protection. It’s especially useful for taming frizz, reducing dullness, and shielding hair from heat styling and environmental damage. Most serums contain silicone-based ingredients that leave hair soft, glossy, and more manageable.

There are 3 main kinds of hair serums:

Smoothing Serums: These help control frizz by keeping moisture in the hair and preventing dryness.
Hydrating Serums: Made especially for dry hair, these serums provide extra nourishment and moisture.
Protective Serums: These create a shield around your hair to protect it from heat damage caused by styling tools like straighteners and blow dryers.

Top 5 Benefits of Hair Serum

With regular use, hair serum can make a noticeable difference in the look and feel of your hair. It smooths, softens, and makes styling easier, all while adding a healthy shine. Here are the top 6 benefits of hair serum you can expect:

Top 5 Benefits of Hair Serum

1. Strengthens Hair: Using a hair serum for damaged hair can help repair weak strands, reduce breakage, and restore shine. Some serums, especially oil-infused ones, also add nutrients and fatty acids to repair weak spots and keep hair stronger.

2. Controls Frizz: Serum can help lock in moisture and smoothen the hair cuticle, thus controlling frizz. This extra hydration keeps hair soft, manageable, and less likely to puff up in humid conditions.

3. Adds Shine: Serum gives hair a glossy finish that makes it look healthier and more polished. Whether indoors or in sunlight, your hair will catch the light beautifully.

4. Protects from Heat: A good serum acts as a shield against heat tools, sun exposure, and pollution, helping you maintain smooth, healthy strands even with regular styling.

5. Prevents Color Fading: UV rays can dry out and fade hair color. Serum with UV protection helps lock in moisture and preserve the vibrancy of color-treated hair, keeping it fresh for longer.

Did you know: Many people now choose vegan hair serums, which offer nourishment, frizz control, and shine while being free from animal ingredients and cruelty-free.

How to Apply Hair Serum?

Using hair serum correctly helps you get the most out of the product and achieve smooth, shiny hair. Follow these steps for best results:

1. Start with Clean, Damp Hair

Wash your hair as usual, then gently towel-dry it until it’s damp but not soaking wet. Applying serum on damp hair helps lock in moisture and makes it easier to distribute the product evenly.

2. Use a Small Amount

Pour a pea-sized amount of serum into your palm. It’s better to start small because too much serum can make your hair look greasy and heavy.

3. Warm the Serum Between Your Hands

Rub your palms together to spread the serum evenly and warm it up slightly. This helps the serum apply smoothly and evenly through your hair.

4. Apply to Mid-Lengths and Ends

Begin applying the serum from the middle of your hair strands down to the ends. These areas tend to be drier and more damaged. Avoid the scalp or roots to prevent weighing your hair down or making it look oily.

5. Work the Serum Through Your Hair

Use your fingers to gently comb the serum through your hair. This also helps detangle any knots and spreads the product evenly. For an even finish, run a wide-tooth comb or a soft brush through your hair to distribute the serum thoroughly.

6. Dry and Style as Desired

You can either let your hair air dry naturally or use a blow dryer. Then style your hair as usual. The serum will protect your hair from heat and keep it looking smooth and shiny.

Pro Tip: If you feel like your hair needs extra hydration, you can add a tiny bit more serum, just be careful not to overdo it. Once applied, serum isn’t easy to remove without washing.

When Do You Use Hair Serum?

Understanding when to apply hair serum makes a big difference. Some of the most recommended times to use serum are:

When Do You Use Hair Serum?

Right after washing your hair: When your hair is clean and still damp, serum helps lock in moisture and smooth the strands.
Before using heat tools: If you style your hair with a dryer, straightener, or curling iron, applying serum first protects your hair from heat damage.
Every day if needed: If your hair feels dry or looks dull, you can use serum daily.

For daily styling and protection, try Hi-Vibes Vegan Hair Serum. Its vegan formula works on all hair textures and protects against heat and pollution.

Tips for Using Hair Serum

Keep these tips in mind to make the most of your hair serum.

Use the right amount: A small amount is usually enough. Using too much can make your hair heavy and greasy.
Choose according to your hair type: Finding the best hair serum depends on your hair type and needs. You must look for one that nourishes, smooths frizz, and protects against heat. Read on to know the ideal hair serum as per your hair type.

Hair Type	Ideal Serum	Ingredients
Fine hair	Lightweight, non-greasy formulas that add volume and shine without weighing hair down	Lightweight oils like argan
Curly or coarse hair	Rich, moisturizing serums that tame frizz, define curls, and add hydration	Nourishing oils like coconut, olive, or shea butter
Color-treated hair	Color-safe serums that protect hair color, prevent fading, and add shine	UV filters for sun protection; antioxidants and color-safe ingredients

Experiment with different products: Not every serum works the same for everyone. Try a few brands to find the one that feels best for your hair.

For a serum that provides nourishment, shine, and frizz control without weighing your hair down, Moehair Hair Growth Serum is a trusted choice for all hair types.

What is the Difference Between Hair Serum and Hair Oil?

Though hair serums and oils may look similar, they serve different purposes in your hair care routine. Know the difference between hair serum and hair oil:

Feature	Hair Serum	Hair Oil
Purpose	Targeted treatments for issues like damage, frizz, dullness	Deep hydration and moisture
Key ingredients	Proteins, peptides, antioxidants	Fatty acids
Texture	Lightweight, fast-absorbing	Heavier, richer
Use	Ideal for styling and quick treatment	Best for deep conditioning or adding shine

Hair serum can be a game-changer in your hair care routine, helping you achieve smooth, shiny, and healthy-looking strands. However, choosing a serum that suits your hair type is key regardless of whether you need lightweight hydration, deep frizz control, or color protection.

For a formula that ticks all the boxes, Moehair USA hair growth serum offers the perfect blend of nourishment, shine, and protection without weighing your hair down.

Shop hair growth serum today and transform your hair care routine into a salon-worthy experience.

Frequently Asked Questions

Q1. What does hair serum do?
Hair serum is a lightweight hair product designed to improve the look, feel, and health of your hair. It adds shine, controls frizz and protects your hair from heat.

Q2. Do you put serum on wet or dry hair?
It’s best to apply hair serum on damp, towel-dried hair. This helps lock in moisture and spreads the product evenly. You can also use a small amount on dry hair to smooth frizz or add shine.

Q3. When should you put hair serum in your hair?
Apply serum after washing and conditioning your hair, when it’s still damp. You can also use it before heat styling or anytime your hair feels dry or frizzy.

Q4. Do I use hair serum before or after shampoo?
Hair serum should be used after shampooing and conditioning, not before. It’s a finishing product that seals in moisture and protects your hair.

Q5. How long does it take for a hair serum to work?
You’ll usually see results immediately, like smoother, shinier hair. With regular use, your hair can become healthier and more manageable over time.

Q6. What happens if I apply hair serum on dry hair?
Applying serum on dry hair can help tame flyaways and add shine. But avoid using too much, or it can make your hair look greasy.

Q7. How to massage serum into the scalp?
Most serums are meant for hair strands, not the scalp. But if you have a serum designed for scalp care, gently massage it with your fingertips in small circles to improve circulation.

Q8. Is hair serum harmful?
Hair serum is generally safe when used as directed. Using too much or applying it to the scalp may cause greasiness.

Q9. What are the disadvantages of hair serum?
If overused, serum can weigh hair down or make it look oily. Some serums with heavy silicones might cause buildup if not washed out regularly.

Q10. Is leave-in conditioner or serum better?
Leave-in conditioner moisturizes and detangles, while serum smooths, adds shine, and protects from heat. Many people use both for best results.