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Best Smoothing Hair Masks of 2026

Charlotte Powell Avatar
Charlotte Powell

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If you're looking for a way to keep your hair looking healthy and shiny, then smoothing hair masks might be the perfect solution for you. These masks are designed to help nourish and hydrate your hair, leaving it feeling soft and silky. They also help to reduce frizz and flyaways, making your hair more manageable and easier to style. Whether you have curly or straight hair, a smoothing hair mask can help to improve your hair's overall texture and appearance. So if you're looking for a way to give your hair a little extra TLC, then why not give one of these masks a try?

At a Glance: Our Top Picks

TRESemmé Keratin Smooth Deep Smoothing Mask Cover #TOP 1

TRESemmé Keratin Smooth Deep Smoothing Mask

9.9
Read Review
Kérastase Resistance Strengthening Mask for Long Hair Cover #TOP 2

Kérastase Resistance Strengthening Mask for Long Hair

9.8
Read Review
L’Oréal Professionnel Metal Detox Hair Mask Cover #TOP 3

L’Oréal Professionnel Metal Detox Hair Mask

9.6
Read Review

Top 4 Smoothing Hair Masks

#TOP 1 Best Keratin Oil Hair Mask

TRESemmé Keratin Smooth Deep Smoothing Mask

  • TRESemmé
  • 0W-H04Y-0ZDF
  • White
  • 440 ml (Pack of 1)
TRESemmé Keratin Smooth Deep Smoothing Mask Cover

TRESemme Keratin Smooth Deep Smoothing Mask rinse-out hair treatment with hydrolysed keratin for soft, shiny, frizz-free hair 440 ml

The TRESemmé Smoothing Mask provides instant smoothness and long-lasting shine, making it ideal for those seeking sleek, healthy hair. With its advanced formula containing hydrolysed keratin and marula oil, you can enjoy up to 72 hours of frizz control, ensuring your hair stays manageable throughout the day. This treatment effectively detangles knots, enhancing shine and softness while protecting your hair from humidity. Experience salon-quality results at home by using this mask alongside the TRESemmé Keratin Smooth Shampoo and Conditioner for optimal care.

9.9
FTB Score
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What We Like

  • Instant smoothness and shine
  • Long-lasting frizz control
  • Detangles knots easily
  • Protects from humidity
#TOP 2 Best Kerastase Hair Mask

Kérastase Resistance Strengthening Mask for Long Hair

Kérastase Resistance Strengthening Mask for Long Hair Cover

Kérastase Resistance, Strengthening & Smoothing Mask, For Long Hair, With Creatine R & Amino Acid, Masque Extentioniste, 200ml

The Kérastase Resistance Mask is designed to enhance hair growth and fortify long hair. Enriched with Creatine, Ceramides, and Maleic Acid, it deeply repairs the hair fibre, reducing split ends and minimising the risk of breakage. By applying a small amount to damp hair, you can easily protect your lengths from external damage. This mask not only strengthens your hair but also provides essential nourishment, helping you achieve a healthier look with minimal effort.

9.8
FTB Score
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What We Like

  • Strengthens long hair effectively
  • Repairs damaged hair fibres
  • Reduces split ends
  • Protects against external damage
  • Easy application process
#TOP 3 Best Hair Mask Cream

L’Oréal Professionnel Metal Detox Hair Mask

L’Oréal Professionnel Metal Detox Hair Mask Cover

L’Oréal Professionnel Metal Detox Hair Mask 250ml, Prevent Breakage & Colour Fade from Hard Water, Moisturising Conditioner Treatment for Smooth, Shiny Hair, Prevent Damaged Hair

The Metal Detox Hair Mask by L’Oréal Professionnel is designed to protect your hair from harmful copper deposits that can affect colour treatments. This mask safeguards the hair fibre from particles that can accumulate after colouring, balayage, or lightening services. It features patented technology enriched with Glicoamine, ensuring your hair remains smooth and strong. For best results, use it after the anti-metal cleansing cream shampoo, applying it evenly on towel-dried hair for just one minute. This quick treatment helps maintain the vibrancy of your colour while reducing breakage.

9.6
FTB Score
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What We Like

  • Protects coloured hair from damage
  • Reduces breakage from copper deposits
  • Easy to use after shampooing
  • Quick one-minute application
#TOP 4

Biolage SmoothProof Smoothing Treatment Mask 100ml

  • Biolage
  • E2887700
  • BIOLAGE
  • 100 ml (Pack of 1)
Biolage SmoothProof Smoothing Treatment Mask 100ml Cover

Biolage ,SmoothProof ,Deep Treatment Pack ,Smoothing Deep Treatment Mask ,for Frizzy Hair 100 ml

The Biolage SmoothProof Mask is an excellent solution for managing frizz, split ends, and fly-aways, helping you achieve an overall smooth finish. This vegan-friendly hair mask contains camellia extract, known for its nourishing properties, which can leave your hair feeling soft and manageable. The light and easy-to-squeeze packaging makes application a breeze, allowing you to enjoy a spa-like experience at home. With this treatment, you can take control of your hair’s appearance and enjoy a polished look every day.

9.4
FTB Score
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What We Like

  • Reduces frizz effectively
  • Suitable for vegans
  • Easy to apply packaging
  • Contains nourishing camellia extract

Frequently Asked Questions (FAQs)

1. Are hair masks good for frizzy hair?

While the shampoo and conditioners you use are certainly important, one of the best ways to prevent frizz from occurring is with a hair mask. Since one of the main causes of frizz is a lack of moisture, the best hair masks for frizzy hair will boast heavy-duty moisturizing formulas that restore hydration.

2. What is smoothing hair mask?

Hair smoothing or smoothening is a temporary chemical treatment aimed to treat unruly, frizzy, and unmanageable hair. It uses a formaldehyde [1] solution to saturate your hair strands, which is then dried out and set in a straight position with the help of a flat iron.

3. Which mask is best for dry frizzy hair?

Priano says anyone with thick, coarse, curly, dry, or damaged hair should look for a mask with oils like macadamia, jojoba, coconut, Moroccan, or argan.

Editor's Notes

During our smoothing hair mask research, we found 101 smoothing hair mask products and shortlisted 4 quality products. We collected and analyzed 99,553 customer reviews through our big data system to write the smoothing hair masks list. We found that most customers choose smoothing hair masks with an average price of £11.62.

The smoothing hair masks are available for purchase. We have researched hundreds of brands and picked the top brands of smoothing hair masks, including Biolage and more.

Written by

Charlotte Powell Avatar

Charlotte Powell

Charlotte Powell is a dermatologist and a licensed cosmetologist from Westminster, London. However, she was first a cosmetologist from London Beauty Training School. According to Charlotte, she needed better insight into the human skin, hence the dermatology degree. Long before she acquired her degree, she wrote and edited articles, eBooks, and editorials for companies and websites. Charlotte combines her skill and knowledge in providing DIY Beauty tips amongst other fashion related topics.