10 Best Hair Smoothing Serum in The UK

Last updated on 17/07/2025

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Best Choice

9.7

Exceptional

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COLOR WOW

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

28% OffFree Shipping

Why We Love It

Delivers epic shine brilliantly.
Repairs and enhances texture.
Adds spectacular shine inside-out.

Main Highlights

Sparkling high-gloss finish locks down the cuticle and temporarily seals split ends
Protects against UV rays and colour fade
Includes 3 levels of heat protection
Glossing serum instantly smooths frizz on wet or dry hair

Bed Head by TIGI - Straighten Out Anti Frizz Hair Serum - For Smooth Shiny Hair - 100 ml

33% OffFree Shipping

Why We Love It

Tames and smoothens frizzy hair.
Ensures glossy, shiny finish.
Offers efficient heat protection.

Main Highlights

Bed head's new straighten out serum with a frizz-free formulation
new on the outside and just as epic on the inside
Lightweight, anti-frizz serum helps fight frizz and smooth flyaway
Moisturises hair for a glossy and shiny finish
With heat protection
Great for smoothing unruly and frizzy hair

Goldwell Dualsenses Just Smooth 6 Effects Serum for Unruly Frizzy Hair, Frizz Control, 100ml

15% OffFree Shipping

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

Wella Professionals Oil Reflections Luminous Smoothening Hair Oil, Radiant Shine & Silky Smoothness, Professional Hair Care With Camelia Oil & White Tea Extract, 100ml

5% OffFree Shipping

Why We Love It

Ideal for professional hair care.
Effortless application process.
Priced for everyday use.

Main Highlights

Brand: Wella Professionals
Haircare product
Easy to Use
Affordable

Bare Anatomy Ultra Smoothing Hair Serum Powered By Carbohydrate Complex & Niacinamide | Serum for Smooth & Shiny Hair | For Dry & Frizzy Hair | Women & Men | 50 ml

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Why We Love It

Smooths out rough ends.
Restores hair's natural texture.
Deeply conditions and hydrates.

Main Highlights

RESTORES SMOOTHNESS : The Ultra Smoothing Serum reduces damage,locks in moisture, repairs damaged hair and restores smoothness
WHAT CAUSES COARSE AND DAMAGED HAIR ? : Dry hair is caused due to lack of natural oil & moisture that act as lubricants all along the hair fiber. This serum moisturizes hair and restores smoothness.
CARBOHYDRATE COMPLEX: It is the main source of nutrition for dry hair. Carbohydrate Complex prevents hair breakage and promotes hair growth.
NIACINAMIDE: It is a form of Vitamin B3 beneficial for hair health. It improves efficiency of keratin synthesis and regulates scalp and hair oil production.
ANTI-DEHYDRATION : Hydrates dry hair and moisturizes dry ends. Maintains overall moisture overtime.

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

3% OffFree Shipping

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

John Frieda Frizz Ease All-in-1 Lightweight Serum 50ml, Light Hair Serum for Fine to Medium Hair

35% OffFree Shipping

Why We Love It

Perfect for fine hair.
Works on wet hair.
Long-lasting frizz protection.

Main Highlights

For fine to medium 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

Bed Head by TIGI After Party Super Smoothing Cream – Anti Frizz hair styling product with humidity protection for frizzy, dull or coarse hair, 100ml

46% OffFree Shipping

Why We Love It

Salon-smooth hair at home.
Fights frizz, boosts shine.
Versatile for all hair types.

Main Highlights

For Smooth, Sleek, Frizz-Free Hair: Created with and used by salon professionals, this smoothing cream tames frizz, flyaways, and static, leaving hair silky, sleek, and effortlessly polished
The Ultimate Frizz Fighter: Formulated with an Anti-Frizz Complex, this lightweight cream blocks humidity and fights frizz, keeping hair under control while delivering a high-gloss, salon-smooth finish
Powered by Shine-Boosting Ingredients: Infused with light reflecting Shine Enhancers, lightweight conditioners and Castor Seed Oil, this formula softens, smooths, and amplifies shine without weighing hair down
With a Soft, Touchable Finish: This multitasking formula delivers smooth, glossy results without leaving hair heavy or oily. Plus, the Enchanting Summer Fruit fragrance will leave your hair smelling so good you’ll be turning heads
Wear It Your Way - Air Dry or Heat Style: Apply to damp hair for effortless styling or dry hair for a sleek, polished finish; Works with air-drying or heat styling for frizz-control and gloss
Salon-Approved for All Hair Types: Designed for straight, wavy, and curly hair, but especially good for frizzy, dull, or coarse textures that need extra smoothness and shine

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

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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

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

22% OffFree Shipping

Main Highlights

Biolage Smoothproof Deep Smoothing 6-In-1 Professional Hair Serum

9.0

Superb

Save 22%

We scanned 1595 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 COLOR WOW, TIGI, Goldwell, Wella Professionals, Bare Anatomy, John Frieda, Biolage, 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 7976 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:

The clear winner of our analysis is COLOR WOW Pop + Lock Frizz Control Serum: Prevent Colour Fade, Seal Split Ends, and Add Gloss - Get Silky, Shiny Hair!. We love many things about this product by COLOR WOW. What sets it apart from the competition is Delivers epic shine brilliantly, Repairs and enhances texture, Adds spectacular shine inside-out.
The best value product for most shoppers and where user satisfaction is continuously the highest is Bed Head by TIGI - Straighten Out Anti Frizz Hair Serum - For Smooth Shiny Hair - 100 ml by TIGI based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Hair Smoothing Serum and the best cost-to-value ratio is Bed Head by TIGI After Party Super Smoothing Cream – Anti Frizz hair styling product with humidity protection for frizzy, dull or coarse hair, 100mlat TIGI with a 46% discount.
Our list of the best Hair Smoothing Serum is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Hair Smoothing Serum in The UK

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We scanned 1595 products

We concluded that: