Split ends sneak up quietly. One moment your hair looks smooth, then suddenly you spot frayed tips that make everything look dry. If you style often or skip trims sometimes, you know that feeling too well. Using the best hair serums for split ends gives your hair an instant boost plus protects it from more damage.
A good serum glides on easily, seals the cuticle, plus adds shine without making your hair feel heavy. I’ve used several serums over the years, and some genuinely make a huge difference when you’re trying to hold things together between trims.
Top 3 Product Recommendations
- Best Overall: Olaplex No.7 Bonding Oil
- Best Budget: Garnier Fructis Sleek & Shine Anti-Frizz Serum
- Best for Thick Hair: Moroccanoil Treatment Original
1. Olaplex No.7 Bonding Oil

Olaplex No.7 Bonding Oil is one of the most popular serums for split ends, plus I’ve used it on my own hair. The texture feels light at first touch, but it still delivers strength and shine. It contains the famous Olaplex bonding technology that helps reduce breakage.
This serum works well for people who style with heat because it adds heat protection up to high temperatures. You only need a tiny amount, which makes the bottle last longer than expected. It also leaves your hair looking polished without feeling greasy.
On days when my ends looked dry, I used one drop and noticed the difference instantly. It smooths frizz and makes damaged ends look healthy again.
Pros
- Strengthens damaged hair plus adds shine.
- Lightweight formula that absorbs fast.
- Provides heat protection.
- A little product lasts a long time.
Cons
- The bottle is small.
- Slightly pricey.
Olaplex No.7 Bonding Oil is ideal if you want to strengthen fragile hair while smoothing split ends.
2. Moroccanoil Treatment Original

Moroccanoil Treatment Original uses argan oil plus a blend of nutrients that coat your hair with moisture. If your hair is thick or gets frizzy often, this serum is a great match. It helps soften the hair while reducing the appearance of split ends.
The scent is warm and comforting, and the texture feels a bit richer than most serums. Even though it’s rich, it still spreads easily and gives your hair a sleek finish. Many people love using it after washing because it makes detangling easier.
I tried it during a very humid week, and it kept my hair looking smooth longer than expected. It’s also popular for making hair look healthier over time.
Pros
- Rich formula that deeply nourishes.
- Helps reduce frizz plus dryness.
- Makes detangling easier.
- Adds long-lasting shine.
Cons
- Can feel heavy if you use too much.
- Has a strong scent some may not love.
Moroccanoil Treatment Original is a solid pick if you want hydration plus shine, especially for thicker hair.
3. Garnier Fructis Sleek & Shine Anti-Frizz Serum

Garnier Fructis Sleek & Shine Anti-Frizz Serum is a budget-friendly favorite with impressive performance. It uses argan oil from Morocco to smooth rough ends while adding shine. Despite its low price, it competes with some premium serums.
The texture feels silky and spreads quickly across the hair. You only need a small amount to get that smooth, glossy finish. It works especially well in humid places because it helps control frizz.
It’s also a great starter serum if you’re looking for something affordable while still caring for split ends.
Pros
- Affordable plus easy to find.
- Smooths hair and adds shine fast.
- Helps control frizz in humidity.
- Great lightweight texture.
Cons
- Can make fine hair look slightly oily if used heavily.
- Strong fragrance.
Garnier Fructis Sleek & Shine Anti-Frizz Serum gives you a glossy finish and smoother ends without stretching your budget.
4. Paul Mitchell Super Skinny Serum

Paul Mitchell Super Skinny Serum is loved for making hair smooth, soft, plus quicker to dry. The formula helps seal the hair cuticle, which reduces the appearance of split ends. It also adds slip, so your hair becomes easier to manage.
The serum spreads easily and doesn’t weigh your hair down. I noticed how fast it reduced puffiness after blow-drying. It also holds up well through the day without becoming sticky.
With consistent use, many say it helps their hair stay straighter and more polished.
Pros
- Makes hair smoother plus easier to style.
- Helps reduce drying time.
- Lightweight feel.
- Works well for daily use.
Cons
- Not ideal for very thick hair.
- Strong perfume-like scent.
Paul Mitchell Super Skinny Serum is great if you want something lightweight that smooths split ends while helping you style faster.
5. John Frieda Frizz Ease Extra Strength Serum

John Frieda’s Frizz Ease Extra Strength Serum is a classic. It helps manage stubborn frizz plus dryness while giving you smoother hair. People with coarse or thick hair especially love this formula.
It contains a mix of silicones and oils that coat the hair, making split ends appear softer. It also helps protect against humidity. I used it in the past when my hair felt unmanageable, and it really helped improve the texture instantly.
This one works best if you apply it to wet hair so it spreads evenly.
Pros
- Controls stubborn frizz.
- Adds shine plus softness.
- Protects against humidity.
- Works well on coarse hair.
Cons
- Heavy for fine hair.
- Can feel slippery.
John Frieda Frizz Ease Extra Strength Serum is a solid choice for thick or frizzy hair that needs extra smoothing.
6. BIOLAGE Smoothproof Smoothing Serum

BIOLAGE Smoothproof Smoothing Serum uses plant-based ingredients to tame split ends while giving your hair a silky feel. It’s popular among people who prefer cleaner formulas but still want a smoothing effect.
The serum feels lightweight and gives your hair a glossy finish without buildup. It spreads easily and works well before blow-drying. Many say it keeps their hair smoother all day.
I noticed how soft my hair felt after using it during dry weather. It also helped keep my ends from looking frayed.
Pros
- Lightweight formula.
- Adds shine plus softness.
- Works well for most hair types.
- Pleasant light scent.
Cons
- Not strong enough for very coarse hair.
- Needs reapplication sometimes.
BIOLAGE Smoothproof Smoothing Serum is ideal if you want a clean-feeling product that still smooths split ends.
Tips for Preventing Split Ends
It helps to fix the cause too. Here are a few habits that reduce split ends.
- Trim your hair every few months. Even small trims make a difference.
- Use a microfiber towel to reduce friction while drying.
- Apply heat protectant every time you style.
- Avoid brushing wet hair. Use a wide-tooth comb instead.
Pro tip: Warm your serum between your palms first. It spreads better and coats the ends more evenly.
Buying Guide: How to Choose the Best Hair Serum for Split Ends
Check the texture
Thicker serums work well if your hair is coarse or dry. Light, silky formulas match fine hair better because they don’t weigh it down.
Look at the ingredients
Ingredients like argan oil, keratin, plus silicone-based compounds help seal the cuticle. These reduce fraying and improve shine.
Think about your styling routine
If you use heat often, pick a serum that offers heat protection. It prevents more split ends.
Avoid heavy formulas if your hair is fine
A heavy serum can make your hair look greasy. Lightweight products usually blend better.
Look for frizz control
Serums that protect against humidity help your hair stay smoother through the day.
Frequently Asked Questions
1. How often should I use hair serums for split ends?
You can use a serum every day, but start small. Focus on the ends to avoid buildup.
2. Can serums fix split ends permanently?
Serums help seal the ends temporarily. You still need trims to fully remove split ends.
3. Should I apply serum to wet or dry hair?
Most serums work best on damp hair because they spread evenly. But you can use a tiny amount on dry hair to refresh the ends.
4. Do serums make hair greasy?
Only if you use too much or if the formula is heavy. Start with a small drop.
5. Are serums safe for colored hair?
Yes. Many serums protect color and reduce dryness, which helps colored hair stay healthy.



