10 Best hair smoothing serums of 2025

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Best Choice

1

Moroccanoil
Moroccanoil Intense Smoothing Frizz Control Serum, 1.7 Fl. Oz.
Main highlights

Frizz Control and Nourishment
Moroccanoil Intense Smoothing Serum effectively tames frizz and nourishes hair, leaving it smooth and manageable.

Ideal for Damaged Hair
Perfect for severely damaged, bleached, or textured hair needing intense moisture and repair.

Praised Gel-Like Consistency
Customers love the thicker, gel-like texture that provides excellent slip without greasiness.
9.8

Exceptional

Our Rating
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Value for Money

2

Olaplex
Olaplex No. 6 Bond Smoother, Leave-In Styling Hair Cream Treatment, Smooths, Conditions, & Strengthens, Frizz Control for Up to 72 Hours, For All Hair Types, 3.3 fl oz
Main highlights

Frizz Control and Softness
Olaplex No 6 Bond Smoother effectively tames frizz, leaving hair soft and manageable.

Ideal for Damaged Hair Restoration
Perfect for restoring hair health after neglect, making it look youthful and vibrant.

Highly Praised Frizz Control
Customers consistently praise its impressive ability to control frizz and improve hair texture.
9.7

Exceptional

Our Rating

9.3
Gentle

9.3
Aroma

9.1
Light weight
3

BioSilk
BioSilk Silk Therapy Original, Reconstructing Treatment For Adding Shine & Helping Prevent Split Ends, Sulfate, Paraben, & Cruelty-Free, 5.64 Oz

37% Off
Main highlights

UV Protection and Nourishment
BioSilk Silk Therapy Original offers UV protection while nourishing hair, keeping it healthy and shiny.

Perfect for Dry and Curly Hair
Ideal for restoring moisture to dry and curly hair, enhancing natural curls.

Shiny and Smooth Finish
Customers love its ability to leave hair shiny and smooth without greasiness.
Key specs
- Product Dimensions:10.5 L X 15.0 W X 5.6 H
- Heat Protection:Provides UV protection
- Frizz Control:N/A
- Moisture:N/A
- Ingredients:N/A
9.4

Excellent

Our Rating

9.5
Gentle

9.5
Aroma

9.5
Light weight
4

Garnier
Garnier Fructis Sleek & Shine Anti-Frizz Serum for Frizzy, Dry Hair, Argan Oil, 5.1 Fl Oz, 1 Count (Packaging May Vary)

12% Off
Main highlights

Frizz Control and Shine
Garnier Anti Frizz Serum with Moroccan argan oil for lasting smoothness and shine.

Ideal for Humid Climates
Perfect for taming frizzy, dry, unmanageable hair in humid conditions.

Praised Lightweight Formula
Customers love its lightweight feel and non-greasy texture.
9.2

Excellent

Our Rating

9.5
Drying ability

9.3
worth the money

9.3
Aroma
5

Biolage

BIOLAGE Smooth Proof Serum - Hydrates & Heals Brittle Strands, Frizz Control Hair Serum, For Frizzy Hair, With micro-dosed Camellia Oil & Glycerin, 3.4 Fl Oz, packaging may vary
9.0

Excellent

Our Rating
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6

Paul Mitchell
Paul Mitchell Super Skinny Serum Blowout Primer, Speeds Up Drying Time, Humidity Resistant, For All Hair Types, 5.1 fl oz
Main highlights

Frizz Control and Smoothing
Paul Mitchell Super Skinny Serum tames frizz, smooths hair, and speeds up drying time for a polished look.

Ideal for Humid Conditions
Perfect for frizzy or curly hair, especially in humid or coastal environments.

Lightweight and Non-Greasy
Customers praise its lightweight formula that leaves hair soft and manageable without greasiness.
8.9

Very Good

Our Rating

9.5
Gentle

9.5
worth the money

9.5
Aroma
7

HerStyler
HerStyler Hair Repair Serum - Argan Oil Hair Serum for Frizzy and Damaged Hair - For Frizz, Styling and Shine - 2 Fl Oz - Pack of 1
Main highlights

Complete Hair Care Solution
Reduces frizz, tames hair, loosens tangles, and restores shine.

Ideal for All Hair Types
Perfect for straight or curly hair, enhancing luster and softness.

Praised for Non-Greasy Formula
Leaves hair soft without greasy residue, ideal for daily use.
Key specs
- Application Method:Serum
- Hair Growth:Stimulates dormant follicles
- Suitable Hair Types:Straight or curly
- Deep Conditioning:Nourishes and conditions
- Moisturizing:Yes, locks in moisture
8.8

Very Good

Our Rating

9.1
Gentle

9.1
Light weight

8.7
worth the money
8

CHI
CHI Keratin K-Trix 5 Smoothing Treatment, Hair Serum For Creating Smooth, Frizz-Free Styles That Last, Sulfate, Paraben, & Cruelty-Free, 3.92 Oz

39% Off
Main highlights

Thermal Activation for Long-lasting Smoothness
Combines with styling iron heat to smooth hair, lock moisture, and seal out humidity.

Ideal for Frizz Control and Shine
Works best for smoothing fine, frizzy hair and adding shine.

Highly Praised for Hair Softness
Customers love how it makes hair softer and easier to manage.
Key specs
- effects:Smooths hair, locks moisture
- application:Styling iron
- function:Smoothing treatment
- weight:3.53 ounces
- ingredients:Keratix
8.5

Good

Our Rating

9.5
Simple to use

9.1
Aroma

8.9
Gentle
9

Nexxus
Nexxus Ultralight Smooth Frizz Defy Cream Serum for Frizzy and Dry Hair 4 fl oz
Main highlights

Frizz Control in Humidity
Nexxus Ultralight Smooth Hair Serum blocks frizz in 98% humidity.

Ideal for Frizzy Hair
Perfect for taming frizz and flyaways in humid climates.

Praised for Lightweight Formula
Customers love its weightless feel and non-greasy finish.
Key specs
- Product Dimensions:1.67 x 1.67 x 6.54 inches
- Heat Protection:Yes
- Frizz Control:Up to 72 hours
- Moisture:Revives dry hair
- Ingredients:Almond Protein, Jasmine Flower
8.4

Good

Our Rating
10

L'Oreal Paris
L'Oreal Paris Elvive Dream Lengths Frizz Killer Leave-In Serum, 3.4 Ounce

20% Off
Main highlights

Frizz Control and Heat Protection
This serum tames frizz, static, and flyaways while protecting against heat up to 450°F.

Perfect for Long Hair
Ideal for maintaining long hair, this product prevents split ends and enhances shine.

Lightweight and Pleasant Scent
Customers love its lightweight formula and sweet, floral, fruity scent.
8.3

Good

Our Rating

9.5
For untangling

9.1
Moisturizing

8.2
Aroma

10 Best hair smoothing serums of 2025

1

Moroccanoil Intense Smoothing Frizz Control Serum, 1.7 Fl. Oz.

How do we rank?

How do we rank?

Analyzing top stores

2

Olaplex No. 6 Bond Smoother, Leave-In Styling Hair Cream Treatment, Smooths, Conditions, & Strengthens, Frizz Control for Up to 72 Hours, For All Hair Types, 3.3 fl oz

9.3

9.3

9.1

3

BioSilk Silk Therapy Original, Reconstructing Treatment For Adding Shine & Helping Prevent Split Ends, Sulfate, Paraben, & Cruelty-Free, 5.64 Oz

9.5

9.5

9.5

4

Garnier Fructis Sleek & Shine Anti-Frizz Serum for Frizzy, Dry Hair, Argan Oil, 5.1 Fl Oz, 1 Count (Packaging May Vary)

9.5

9.3

9.3

5

BIOLAGE Smooth Proof Serum - Hydrates & Heals Brittle Strands, Frizz Control Hair Serum, For Frizzy Hair, With micro-dosed Camellia Oil & Glycerin, 3.4 Fl Oz, packaging may vary

6

Paul Mitchell Super Skinny Serum Blowout Primer, Speeds Up Drying Time, Humidity Resistant, For All Hair Types, 5.1 fl oz

9.5

9.5

9.5

7

HerStyler Hair Repair Serum - Argan Oil Hair Serum for Frizzy and Damaged Hair - For Frizz, Styling and Shine - 2 Fl Oz - Pack of 1

9.1

9.1

8.7

8

CHI Keratin K-Trix 5 Smoothing Treatment, Hair Serum For Creating Smooth, Frizz-Free Styles That Last, Sulfate, Paraben, & Cruelty-Free, 3.92 Oz

9.5

9.1

8.9

9

Nexxus Ultralight Smooth Frizz Defy Cream Serum for Frizzy and Dry Hair 4 fl oz

10

L'Oreal Paris Elvive Dream Lengths Frizz Killer Leave-In Serum, 3.4 Ounce

9.5

9.1

8.2

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