Best Hair Smoothing Serum of 2026

Last updated on 03/04/2026
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1
Moroccanoil Intense Smoothing Frizz Control Serum, 50ml
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Moroccanoil Intense Smoothing Frizz Control Serum, 50ml

Moroccanoil
Why we love it
  • Versatile for damp or dry hair.
  • Enhances shine, reduces frizz.
  • Convenient 50ml single pack.
Main Highlights
  • Distribute on damp hair from mid-length to ends, then style. Use on dry hair for added shine and frizz reduction.
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9.7
Exceptional
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9.7
Exceptional
Moroccanoil

Moroccanoil Intense Smoothing Frizz Control Serum, 50ml

Why we love it
  • Versatile for damp or dry hair.
  • Enhances shine, reduces frizz.
  • Convenient 50ml single pack.
Main Highlights
  • Distribute on damp hair from mid-length to ends, then style. Use on dry hair for added shine and frizz reduction.
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Value for Money
2
Olaplex Nº.7 Bonding Oil: Concentrated High Shine Oil | Heat Protectant, Visibly Smooths & Softens Hair, Added Color Vibrancy, Up to 72 Hour Frizz Control | For Coily, Curly, Straight, and Wavy
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Olaplex Nº.7 Bonding Oil: Concentrated High Shine Oil | Heat Protectant, Visibly Smooths & Softens Hair, Added Color Vibrancy, Up to 72 Hour Frizz Control | For Coily, Curly, Straight, and Wavy

OLAPLEX
30% Off
Why we love it
  • Revives and repairs damaged hair.
  • Boosts strength, protects hair structure.
  • Enhances shine, softness, and vibrancy.
Main Highlights
  • Repairs damaged and compromised hair
  • Strengthens and protects hair structure
  • Increases shine, softness, and vibrancy
  • Model number: 20140640
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9.6
Superb
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9.6
Superb
OLAPLEX

Olaplex Nº.7 Bonding Oil: Concentrated High Shine Oil | Heat Protectant, Visibly Smooths & Softens Hair, Added Color Vibrancy, Up to 72 Hour Frizz Control | For Coily, Curly, Straight, and Wavy

30% Off
Why we love it
  • Revives and repairs damaged hair.
  • Boosts strength, protects hair structure.
  • Enhances shine, softness, and vibrancy.
Main Highlights
  • Repairs damaged and compromised hair
  • Strengthens and protects hair structure
  • Increases shine, softness, and vibrancy
  • Model number: 20140640
Show More
3
COLOR WOW Pop & Lock Anti-Frizz Hair Serum: Prevent Colour Fade, Temporarily Seal Split Ends, and Add Gloss - Get Silky, Shiny Hair!
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COLOR WOW Pop & Lock Anti-Frizz Hair Serum: Prevent Colour Fade, Temporarily Seal Split Ends, and Add Gloss - Get Silky, Shiny Hair!

COLOR WOW
25% Off
Why we love it
  • Delivers epic shine brilliantly.
  • Repairs and enhances texture.
  • Adds spectacular shine inside-out.
Main Highlights
  • Pop and lock shellac penetrates the colour with moisturising ingredients helps seal the cuticles to capture colour and moisture and block dryness
  • The colour is protected and optimised with an incomparable brightness as a mirror application
  • Apply after combing the hair to get extra shine
  • Element display volume: 550 ml
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9.4
Superb
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9.4
Superb
COLOR WOW

COLOR WOW Pop & Lock Anti-Frizz Hair Serum: Prevent Colour Fade, Temporarily Seal Split Ends, and Add Gloss - Get Silky, Shiny Hair!

25% Off
Why we love it
  • Delivers epic shine brilliantly.
  • Repairs and enhances texture.
  • Adds spectacular shine inside-out.
Main Highlights
  • Pop and lock shellac penetrates the colour with moisturising ingredients helps seal the cuticles to capture colour and moisture and block dryness
  • The colour is protected and optimised with an incomparable brightness as a mirror application
  • Apply after combing the hair to get extra shine
  • Element display volume: 550 ml
Show More
4
COLOR WOW Dream Coat Supernatural Spray. The Anti-frizz GOAT with amazing humidity-proofing powers, 200ml
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COLOR WOW Dream Coat Supernatural Spray. The Anti-frizz GOAT with amazing humidity-proofing powers, 200ml

COLOR WOW
30% Off
Why we love it
  • Activates with simple blow-drying.
  • Innovative weatherproofing formula.
  • Three-day magical protection.
Main Highlights
  • Advanced anti-frizz formula leaves hair super glossy, glassy, ultra smooth
  • Groundbreaking humidity-blocking technology stops moisture from wrecking your style
  • Long-lasting results: sleek style stays intact through 3–4 shampoos
  • Ultra-lightweight anti-humidity spray feels like nothing is on the hair — no buildup, no grease
  • Colour-safe, sulphate-free and cruelty-free — suitable for all hair types, even keratin-treated
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9.3
Superb
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9.3
Superb
COLOR WOW

COLOR WOW Dream Coat Supernatural Spray. The Anti-frizz GOAT with amazing humidity-proofing powers, 200ml

30% Off
Why we love it
  • Activates with simple blow-drying.
  • Innovative weatherproofing formula.
  • Three-day magical protection.
Main Highlights
  • Advanced anti-frizz formula leaves hair super glossy, glassy, ultra smooth
  • Groundbreaking humidity-blocking technology stops moisture from wrecking your style
  • Long-lasting results: sleek style stays intact through 3–4 shampoos
  • Ultra-lightweight anti-humidity spray feels like nothing is on the hair — no buildup, no grease
  • Colour-safe, sulphate-free and cruelty-free — suitable for all hair types, even keratin-treated
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5
Goldwell Dualsenses Just Smooth 6 Effects Serum, For Unruly & Frizzy Hair, Anti-Frizz & Humidity Control, 100ml
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Goldwell Dualsenses Just Smooth 6 Effects Serum, For Unruly & Frizzy Hair, Anti-Frizz & Humidity Control, 100ml

Goldwell
25% Off
Why we love it
  • Provides instant humidity control.
  • Manages and smoothens hair.
  • Ideal for daily usage.
Main Highlights
  • Controls frizz and adds shine to hair
  • Nourishes and smooths for a sleek finish
  • Protects against heat and environmental damage
  • Strengthens hair for a healthy, manageable look
  • Ideal for all hair types, especially frizzy hair
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9.3
Superb
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9.3
Superb
Goldwell

Goldwell Dualsenses Just Smooth 6 Effects Serum, For Unruly & Frizzy Hair, Anti-Frizz & Humidity Control, 100ml

25% Off
Why we love it
  • Provides instant humidity control.
  • Manages and smoothens hair.
  • Ideal for daily usage.
Main Highlights
  • Controls frizz and adds shine to hair
  • Nourishes and smooths for a sleek finish
  • Protects against heat and environmental damage
  • Strengthens hair for a healthy, manageable look
  • Ideal for all hair types, especially frizzy hair
Show More
6
Matrix Biolage Smoothproof Avocado Deep Smoothing Serum Smoothes and Controls Frizzy hair - 100ml
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Matrix Biolage Smoothproof Avocado Deep Smoothing Serum Smoothes and Controls Frizzy hair - 100ml

Biolage
10% Off
Main Highlights
  • Biolage Smoothproof Deep Smoothing 6-In-1 Professional Hair Serum
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9.3
Superb
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9.3
Superb
Biolage

Matrix Biolage Smoothproof Avocado Deep Smoothing Serum Smoothes and Controls Frizzy hair - 100ml

10% Off
Main Highlights
  • Biolage Smoothproof Deep Smoothing 6-In-1 Professional Hair Serum
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7
L'Oréal Paris Elvive Extraordinary Oil Miracle Hair Serum, Intense Nourishment, Up to 6x more Shine, up to 230° heat protection, suitable for all hair types, 100ml
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L'Oréal Paris Elvive Extraordinary Oil Miracle Hair Serum, Intense Nourishment, Up to 6x more Shine, up to 230° heat protection, suitable for all hair types, 100ml

L'Oreal Paris
25% Off
Why we love it
  • Transforms dry, dull hair.
  • Provides luxurious shine.
  • Offers heat protection.
Main Highlights
  • Nourish your dry hair with Elvive Extraordinary Oil: Dry hair can lack nourishment leaving it feeling rough, dull and lifeless. Bathe your hair in nourishment from root to tip for rich, shiny hair.
  • Formula made with luxurious oils: 6 flower oil extracts with nourishing properties for luxurious shine & no flyaways. Leaves your hair feeling beautifully nourished, soft and supple. A non-greasy formula and gives a weightless finishing touch designed for use by all hair types.
  • Leaves your hair feeling beautifully nourished, soft and supple. A non-greasy formula and gives a weightless finishing touch designed for use by all hair types.
  • Heat protection from up to 230°C protection: Use this product with heat appliances or take it on holiday to protect hair from sun damage.
  • Mutli-purpose and ultra-versatile product: It can be used before shampooing for nourishment, before styling to help protect and transform your hair, or as a finishing touch for exceptual shine.
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9.2
Superb
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9.2
Superb
L'Oreal Paris

L'Oréal Paris Elvive Extraordinary Oil Miracle Hair Serum, Intense Nourishment, Up to 6x more Shine, up to 230° heat protection, suitable for all hair types, 100ml

25% Off
Why we love it
  • Transforms dry, dull hair.
  • Provides luxurious shine.
  • Offers heat protection.
Main Highlights
  • Nourish your dry hair with Elvive Extraordinary Oil: Dry hair can lack nourishment leaving it feeling rough, dull and lifeless. Bathe your hair in nourishment from root to tip for rich, shiny hair.
  • Formula made with luxurious oils: 6 flower oil extracts with nourishing properties for luxurious shine & no flyaways. Leaves your hair feeling beautifully nourished, soft and supple. A non-greasy formula and gives a weightless finishing touch designed for use by all hair types.
  • Leaves your hair feeling beautifully nourished, soft and supple. A non-greasy formula and gives a weightless finishing touch designed for use by all hair types.
  • Heat protection from up to 230°C protection: Use this product with heat appliances or take it on holiday to protect hair from sun damage.
  • Mutli-purpose and ultra-versatile product: It can be used before shampooing for nourishment, before styling to help protect and transform your hair, or as a finishing touch for exceptual shine.
Show More
8
Bed Head by TIGI - Control Freak Anti Frizz Hair Serum - For Smooth Shiny Hair - 255 ml
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Bed Head by TIGI - Control Freak Anti Frizz Hair Serum - For Smooth Shiny Hair - 255 ml

TIGI
39% Off
Why we love it
  • Tames unruly, frizzy locks seamlessly.
  • Imparts luxurious shine with mica.
  • Delivers intense hydration for softness.
Main Highlights
  • Anti-frizz hair serum
  • With mica for incredibly glossy and shiny hair
  • Smooths frizz, flyaways and static
  • Moisturises and conditions hair for a smooth, soft look
  • Bed Head by Tigi Control Freak Serum is great curly hair, frizzy hair and coarse hair
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9.1
Superb
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9.1
Superb
TIGI

Bed Head by TIGI - Control Freak Anti Frizz Hair Serum - For Smooth Shiny Hair - 255 ml

39% Off
Why we love it
  • Tames unruly, frizzy locks seamlessly.
  • Imparts luxurious shine with mica.
  • Delivers intense hydration for softness.
Main Highlights
  • Anti-frizz hair serum
  • With mica for incredibly glossy and shiny hair
  • Smooths frizz, flyaways and static
  • Moisturises and conditions hair for a smooth, soft look
  • Bed Head by Tigi Control Freak Serum is great curly hair, frizzy hair and coarse hair
Show More
9
John Frieda Frizz Ease All-in-1 Extra Strength Serum 50ml for Thick Coarse Hair
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John Frieda Frizz Ease All-in-1 Extra Strength Serum 50ml for Thick Coarse Hair

John Frieda
Why we love it
  • Suitable for thick, coarse hair.
  • Approved for wet/dry application.
  • Offers substantial frizz protection.
Main Highlights
  • For thick, coarse hair
  • For application on wet or dry hair
  • Provides 72-hour frizz protection
  • Resists 90 percent humidity
  • Heat protection up to 220°C
  • Safe for colour-treated hair
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9.1
Superb
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9.1
Superb
John Frieda

John Frieda Frizz Ease All-in-1 Extra Strength Serum 50ml for Thick Coarse Hair

Why we love it
  • Suitable for thick, coarse hair.
  • Approved for wet/dry application.
  • Offers substantial frizz protection.
Main Highlights
  • For thick, coarse hair
  • For application on wet or dry hair
  • Provides 72-hour frizz protection
  • Resists 90 percent humidity
  • Heat protection up to 220°C
  • Safe for colour-treated hair
Show More
10
Bed Head by TIGI After Party Smoothing Cream - Anti Frizz Hair Styling Smoothing Cream, Air Dry or Wet Styling for Straight, Wavy or Curly Hair with Caster Seed Oil for Ultimate High Shine Hold
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Bed Head by TIGI After Party Smoothing Cream - Anti Frizz Hair Styling Smoothing Cream, Air Dry or Wet Styling for Straight, Wavy or Curly Hair with Caster Seed Oil for Ultimate High Shine Hold

TIGI
44% Off
Why we love it
  • Salon-smooth hair at home.
  • Fights frizz, boosts shine.
  • Versatile for all hair types.
Main Highlights
  • YOUR FLYAWAY SOLUTION – Bed Head's After Party Smoothing Cream tames flyaways and frizz for sleek, glossy hair. Whether you have natural curly hair, or you're looking for pin straight sleekness, our smooth styling butter will perfect your style.
  • GLOSS WITH HOLD – Formulated with lightweight and hydrating castor seed oil, to tame static, and light-reflecting shine enhancers our long lasting finishing cream will leave hair soft and bouncy whilst moisturising strands for silky shine.
  • HAIR SETTING CREAM - No matter the weather, TIGI's ultimate style smoothing cream keeps your hair protected from humidity. No flyaway, no frizz, made for all hair types and every style from straight, to wavy, to curly - your haircare must have!
  • STYLE YOUR WAY – Apply to damp hair for blow-dried perfection or smooth dry hair to tame static and flyaways. Air-dry, straighten, or curl – After Party gives total control and salon-professional, high-gloss results for men and women.
  • WET OR DRY STYLING FLEX – Use After Party Cream on damp hair to air-dry into soft, frizz-free waves, or smooth onto dry hair to tame flyaways and add high-gloss shine. The ultimate anti-frizz finishing cream for any look - day or night!
Show More
9.0
Superb
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9.0
Superb
TIGI

Bed Head by TIGI After Party Smoothing Cream - Anti Frizz Hair Styling Smoothing Cream, Air Dry or Wet Styling for Straight, Wavy or Curly Hair with Caster Seed Oil for Ultimate High Shine Hold

44% Off
Why we love it
  • Salon-smooth hair at home.
  • Fights frizz, boosts shine.
  • Versatile for all hair types.
Main Highlights
  • YOUR FLYAWAY SOLUTION – Bed Head's After Party Smoothing Cream tames flyaways and frizz for sleek, glossy hair. Whether you have natural curly hair, or you're looking for pin straight sleekness, our smooth styling butter will perfect your style.
  • GLOSS WITH HOLD – Formulated with lightweight and hydrating castor seed oil, to tame static, and light-reflecting shine enhancers our long lasting finishing cream will leave hair soft and bouncy whilst moisturising strands for silky shine.
  • HAIR SETTING CREAM - No matter the weather, TIGI's ultimate style smoothing cream keeps your hair protected from humidity. No flyaway, no frizz, made for all hair types and every style from straight, to wavy, to curly - your haircare must have!
  • STYLE YOUR WAY – Apply to damp hair for blow-dried perfection or smooth dry hair to tame static and flyaways. Air-dry, straighten, or curl – After Party gives total control and salon-professional, high-gloss results for men and women.
  • WET OR DRY STYLING FLEX – Use After Party Cream on damp hair to air-dry into soft, frizz-free waves, or smooth onto dry hair to tame flyaways and add high-gloss shine. The ultimate anti-frizz finishing cream for any look - day or night!
Show More

We scanned 336 products

We reviewed these offers relevant to the Hair Smoothing Serum within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Moroccanoil, OLAPLEX, COLOR WOW, Goldwell, Biolage, L'Oreal Paris, TIGI, John Frieda, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.
For the best Hair Smoothing Serum in the market, we considered we took a deep dive into 1681 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that: