10 Best Hair Smoothing Finishing Serum in The UK

Last updated on 07/08/2025

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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!

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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

ghd Dramatic Ending - Smooth & Finish Serum (30ml)

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Why We Love It

Transforms dull hair into shiny.
Effortlessly tames and defines curls.
Controls static-induced flyaway effectively.

Main Highlights

Use to smooth, shine and define
Perfect for high impact shine
Lightweight serum that smooths split ends
Taming and defining curls and waves
Controlling flyaway hair caused by static

Goldwell StyleSign Smoothing Serum Spray, Hair Serum for Frizz Control and Heat Protection, 100ml

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Why We Love It

Instant heat protection guaranteed.
Achieve silky-straight hair effortlessly.
Reduces hair breakage significantly.

Main Highlights

Value for money
Good product with excellent quality
Easy to use

Glaze MirrorGlaze Super Sleek Hair Shine Spray – Transforms Frizz to Glass-Like Shine, Protects from Heat, Blocks Humidity + Repairs Bonds – 190ml

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Why We Love It

Adds mirror-like shine instantly.
Fights frizz for weeks.
Strengthens and hydrates hair.

Main Highlights

Adds Glass-Like Shine: In just one use this ultimate frizz-fighting formula blocks humidity, repairs damaged bonds, protects against heat up to 230º C & adds mirror-shine; spray liberally on towel-dried hair and blow dry with heat & tension to activate
Fights Frizz & Smells Great: Powered by anti-frizz Glosslock Technology that lasts up to 3 washes to leave your hair super sleek, all week; MirrorGlaze also works like a hair perfume, with a pleasant Vanilla/Black Coffee scent
Repairs Damage: Supercharged with a unique combination of 10x bond-building amino acids, MirrorGlaze helps strengthen, hydrate, condition and prevent frizz for smoother, healthier looking hair
Proven Results: 80% agree it instantly reduces frizz, 81% agree hair looks glossier after 1 use & 78% agree hair gloss lasts up to 3 washes in a study of 82 women in June 2023
Your Best Hair Days Start with Glaze: Glaze products are easy to use, 100% Vegan, Cruelty Free, Paraben Free, Sulfate Free, Silicone Free & suitable for all hair types, textures and tones; the best hair days of your life are about to begin

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

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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

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

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Main Highlights

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

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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Why We Love It

Transforms dry, dull hair.
Provides luxurious shine.
Offers heat protection.

Main Highlights

Leaves your hair feeling beautifully nourished, soft and supple, Weightless finishing touch designed for use by all hair types
How to use: Rub 3 or 4 drops on hair, Apply evenly through wet or dry hair, Apply before shampoo to nourish, before styling to protect and transform, or as a finishing touch for sumptuous softness
Non greasy formula made with luxurious oils: 6 flower oil extracts with nourishing properties for luxurious shine & no flyaways, Heat protection from up to 230°C protection

Avon Advance Techniques Absolute Nourishment Argan Hair Serum 30ml, Multi-Tasking Hair Treatment, Formulated with Argan Oil, Restores Shine and Health to Damaged Hair, Cruelty Free

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Why We Love It

Infused with nourishing argan oil.
Hydrates without weighing hair down.
Smooths flyaways and strengthens hair.

Main Highlights

INSTANTLY RESTORES SHINE AND HEALTH TO DAMAGED HAIR - Looking for the ultimate treatment for your dry, damaged hair? Want sleek luscious hair that looks and feels healthy? Our Absolute Nourishment Argan Treatment Serum is infused with argan oil to instantly restore shine and health to dry and damaged hair.
NOURISHING ARGAN - The Absolute Nourishment Argan Treatment Oil leaves hair feeling soft, strong and nourished and is suitable for all hair types. Designed to instantly revitalise dry and damaged hair.
HOW TO USE - Apply product evenly through damp or dry hair, from lengths to ends. Do not rinse. Use pre-blow dry for easy styling and a smooth finish.
CRUELTY FREE - We don't test a single product or ounce of ingredient on animals. In fact, we're actively against it, campaigning for acceptance on non-animal testing methods for more than 3 decades.
AVON - We're passionate about keeping you at the centre of beauty, creating products that embrace the latest trends and cutting-edge technology, alongside everyday essentials that will be the staples of your beauty kit.

Wella WP Oil Reflections Smoothing Oil, 30 ml

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Why We Love It

Versatile oil for glossy reflections.
Infused with luxurious oils.
Leaves hair smooth, healthy-looking.

Main Highlights

Versatile oil for glossy reflections
With macadamia and Avocado oil
Leaves hair smooth and healthy-looking

Charles Worthington ShinePlex Glass Shine Serum, Vitamin C to Hydrate and Nourish Hair, Salon Smoothing Treatment for Women, 50 ml

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Why We Love It

Boosts shine and hydration.
Frizz-free, silky results.
Eco-friendly and vegan-friendly.

Main Highlights

ShinePlex Vitamin C Serum: achieve softer, frizz-free hair with smooth and shiny results which last all day
Benefits: designed to hydrate and nourish hair for glossy results which are smoother and healthier than ever, while boosting shine
Vegan-friendly coming in recyclable packaging, to help care for one's hair and the environment
Made with Vitamin C to hydrate and replenish hair while enhancing shine. Lightweight smoothing hair serum for frizz-free, silky results

8.7

Excellent

We scanned 1595 products

We reviewed these offers relevant to the Hair Smoothing Finishing 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, ghd, Goldwell, glaze, TIGI, Biolage, L'Oreal Paris, Avon, Wella, Charles Worthington, 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 Finishing 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 ghd Dramatic Ending - Smooth & Finish Serum (30ml) by ghd based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Hair Smoothing Finishing Serum and the best cost-to-value ratio is 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, 100mlat L'Oreal Paris with a 50% discount.
Our list of the best Hair Smoothing Finishing 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 Finishing Serum in The UK

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We scanned 1595 products

We concluded that: