Top 22 Best Serums for Hair Straightening [Reviews 2021]

Kaileigh Clemons
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Looking for the best hair straightening serum? Brace yourself because you’ll soon learn there are a ton of different serum types on the market these days. Between travel straightening serums and hair straightening serums you’ll find things like smoothing oil serums, keratin hair serums, repair keratin hair serums, and more. You’ll even see words like heat protecting keratin serum hair oil.

As you can see, choosing the right one for you can be a rather tough decision if you’re not that familiar with hair care products.

That is where I come in. I have scoped the market to create this list of the best hair straightening serum reviews for your convenience.

You’ll definitely find a product that suits you below.

NameCategoryProduct
It's a 10 Haircare Miracle Styling SerumBest OverallIt's a 10 Haircare Miracle Styling Serum
Garnier Fructis Sleek & Shine Anti-Frizz SerumBudget PickGarnier Fructis Sleek & Shine Anti-Frizz Serum
FOXTAIL Extraordinary Blowout Leave-In Hair SerumUpgrade PickFOXTAIL Extraordinary Blowout Leave-In Hair Serum

1. It's a 10 Haircare Miracle Styling Serum

Our rating: 9 / 10

It's a 10 Haircare Miracle Styling Serum

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Pros:

  • Great for damaged hair
  • Smells great
  • Gives your hair that little extra shine
  • Great for all hair types

Read more about the It's a 10 Haircare Miracle Styling Serum

2. amika Blockade Heat Defense Serum

Our rating: 9 / 10

amika Blockade Heat Defense Serum

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Pros:

  • Easy to use
  • Safe to use with your flat iron
  • Reduces hair frizz
  • Lightweight
  • Smells fantastic

Cons:

  • Expensive
  • Can be a little heavy for fine hair

This silk-based serum from american brand amika is a dream to use and leaves hair feeling silky smooth and silky straight. It contains organic keratin and a protein complex which is reusable.

The helpful tips on the back of this product are a great touch to help the user perfect their technique and use this product effectively. As this product is designed for both men and women, it can work for both genders. This product is perfect for anyone who want to style and straighten their hair with hair styling products.

It can be used on naturally curly and thick hair without causing damage making this product universal and safe for all hair types. It is lightweight and dries quickly which makes it easy to use. The sleek packaging design of this product is beautiful and helpful as it is easy to tell what the product does and how to use it.

Read more about the amika Blockade Heat Defense Serum

3. Herstyler Marula Oil Hair Serum

Our rating: 9 / 10

Herstyler Marula Oil Hair Serum

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Pros:

  • Long Lasting
  • This stuff works great, period. It really helps to straighten frizzy hair and also leaves your hair with a wonderful shine and smells great too.
  • Will definitely buy again
  • It's easy to apply.
  • This is really a good quality product. I can't say that it's a hair serum that works like magic or that will end your negative hair problems. I can only say that at least for my hair it gave my hair more shine.
  • Smells great and leaves my hair feeling very soft and shiny.
  • I use it to tame my naturally curly hair. It's not a strong product. It's more like a hair texture or something. I love it. I will definitely buy it again.
  • It straightened my hair without damaging the natural oils in my hair.
  • Great product. Helped tame my hair. Nice smell.

Cons:

  • Inexpensive and easy to use.
  • I've been using this for about a month and a half. I think it helps keep my hair smooth, and it does help keep the frizz away. I have naturally curly hair that I keep straightened using a flat iron. I love this product.
  • For a 60 ml spray bottle, the price is a bit steep.

Read more about the Herstyler Marula Oil Hair Serum

4. Garnier Fructis Sleek & Shine Anti-Frizz Serum

Our rating: 9 / 10

Garnier Fructis Sleek & Shine Anti-Frizz Serum

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Pros:

  • Overall, one of the best serum from Garnier
  • It supplies sufficient moisture to hair, preventing your hair from getting frizzy
  • It also comes with anti-frizz technology to prevent your hair from getting frizzy
  • It comes with light and pleasant fragrance.
  • Easy to apply
  • It is cost-efficient

Read more about the Garnier Fructis Sleek & Shine Anti-Frizz Serum

5. Paul Mitchell Super Skinny Serum

Our rating: 9 / 10

Paul Mitchell Super Skinny Serum

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Pros:

  • Takes less than 10 minutes to work
  • Very affordable
  • Great for all hair types
  • Doesn’t create any mess
  • Very smell-free
  • Creates silky hair with a natural shine

Cons:

  • The bottle is not much to look at
  • The serum takes a bit of time to work as it dries up so you need to be patient
  • The bottle is empty too fast

The Paul Mitchell Super Skinny Serum plus super skinny oil is a lightweight product ideal for those who are constantly on the move. It is inexpensive, and it delivers pretty quickly.

Paul Mitchell Super Skinny Serum delivers effective results in a short period of time. It is, however, important to take note that this works best on wet hair, unlike most serums.

When you want to use it, you first need to add water to it. The serum is available at salons, and online.

Read more about the Paul Mitchell Super Skinny Serum

6. Silk Drops Repair and Shine Serum

Our rating: 8 / 10

Silk Drops Repair and Shine Serum

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Pros:

  • The sleek and elegant design is a nice addition to any bathroom counter
  • It leaves hair shiny, healthy, and tangle-free

This is an award-winning leave-in conditioner that transforms dull, dry, and brittle hair into silk that’s tangle-free and shiny.

The moisture-intensive formula with silk protein fibers helps repair damage and replaces missing protein, while the water-soluble plant extracts help rejuvenate hair. This product helps to eliminate frizz, leaving hair smooth, soft, and silky.

This product uses gentle, conditioner-like consistency that doesn’t weigh your hair down, no matter how long of a day you’ve had.

Read more about the Silk Drops Repair and Shine Serum

7. John Frieda 11766 Frizz Ease Extra Strength Serum

Our rating: 8 / 10

John Frieda 11766 Frizz Ease Extra Strength Serum

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Pros:

  • Easy to apply
  • Hassle free
  • Good quantity for a good price
  • Adds shine to hair
  • Easy to brush and style after applying

Cons:

  • Affects color treated hair
  • Not for damaged hair
  • Has a smell which may take an effort to adjust to

And Frizz Control, for Beautiful, High Shine Hair.

John Frieda’s Frizz Ease Extra Strength Serum is a product that every person who likes clear, soft and smooth hair. It’s an incredible serum that will help you keep your hair healthy, shiny and manageable.

The product is manufactured in the United States, and it is free from parabens, gluten, and sulfates. The serum contains nourishing nutrients that will help you stop the scattering of hair strands. It has keratin amino acids, and it also softens and smoothens the strands.

Read more about the John Frieda 11766 Frizz Ease Extra Strength Serum

8. AG Hair Natural Glow Shine Infuse Serum

Our rating: 8 / 10

AG Hair Natural Glow Shine Infuse Serum

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Pros:

  • Eliminates the need for harsh chemicals
  • Natural ingredients
  • Has a smell that you will fall in love with
  • Fast results
  • Easy to apply
  • Strengthens and protects the hair
  • Works great for all hair types
  • 60-day money back guarantee

Cons:

  • There are better hair products available for this price
  • Some have had great experiences with the product but others not so much

AG Hair Natural Glow Shine Infuse serum is recommended by many stylists. This helps the hair retain its optimal moisture levels and shine while protecting it from the harmful heat.

This product features 100% organic and natural ingredients like essential oils that work in harmony with your hair and scalp.

Plus, unlike some other products, the manufacturer recommends that you don't use a blow dryer. Some users have complained that this product leaves a filmy residue.

Read more about the AG Hair Natural Glow Shine Infuse Serum

9. Bain de Terre Recovery Complex Anti-Frizz Silky Shine Serum

Our rating: 8 / 10

Bain de Terre Recovery Complex Anti-Frizz Silky Shine Serum

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Pros:

  • Great for all hair types
  • Contains organic ingredients

Coming from a company who has been around for several decades, and be trusted by people across the globe, there must be some reason for Bain de Terre Recovery Complex Anti-Frizz Serum to be on our list of the best products for hair in 2019.

After all, the company focuses on the best organic products which they produce in their own company. The product has a great quality. The organic Monoi oil prevents and improves hair breakage. So no need to worry about any side effects.

It damages the hair up to 90%. This formula acts against the dryness of hair, by which the frizz can also be reduced to a great extent. This is a non-sticky formula, which easily gets absorbed in hair. It protects it against any damage.

Read more about the Bain de Terre Recovery Complex Anti-Frizz Silky Shine Serum

10. Herstyler Hair Repair Serum

Our rating: 8 / 10

Herstyler Hair Repair Serum

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Pros:

  • Vegan & Cruelty Free
  • Affordable and fast working
  • No alcohol, parabens or sulfates
  • No harsh chemicals
  • The treatment is good for all hair types, even if it’s chemically processed
  • Reduces frizz
  • Easy to apply
  • Lasts for quite a long time

The Herstyler Hair Repair Serum is an anti-frizz, anti-vibration smoothing treatment used for straightening hair. It has limited ingredients and protects all hair types, including chemically processed hair.

This treatment contains just Argan Oil, Aloe Vera, and Vitamin E. It’s a 3-in-1 hair serum meant to smoothen, straighten and condition hair while reducing frizz and flyaway strands.

Read more about the Herstyler Hair Repair Serum

11. Coconut Oil Hair Serum

Our rating: 8 / 10

Coconut Oil Hair Serum

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Pros:

  • Does not leave hair greasy
  • Absorbs quickly
  • Removes frizz
  • Enhances natural shine
  • Decent price

Read more about the Coconut Oil Hair Serum

12. Design Essentials Protective Styles Moroccan Oil Finishing Thermal Serum

Our rating: 8 / 10

Design Essentials Protective Styles Moroccan Oil Finishing Thermal Serum

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Pros:

  • Protects hair from the heat of the flat iron or hair dryer
  • Helps to prevent damage from sleep rollers, curlers, and/or the use of clip-in hair extensions
  • Greats shine
  • Provides frizz control
  • Smells amazing
  • Not too heavy on your hair

The Design Essentials Moroccan Oil Finishing Serum is a great serum for smoothing out extensions, weaves, and wigs. If you have chemical extensions like clip-ins, locked styles or deep conditioning treatments you need a good finishing serum to make sure your hair is nice and smooth.

The finishing serum is a light and “creamy” formula that detangles the hair and offers superior shine. It is also perfect for use on wet or dry hair. You can use it daily or just on special occasions. It doesn’t matter if your hair is relaxed or natural, the serum is also light enough for use on natural and colored hair.

The Moroccan Oil Finishing Serum is extremely popular on hair forums and among hair professionals. The serum helps to protect your hair from flat irons, rollers, and clipping in extensions. The reviews speak for themselves.

Read more about the Design Essentials Protective Styles Moroccan Oil Finishing Thermal Serum

13. Evolution Argan Oil Serum

Our rating: 8 / 10

Evolution Argan Oil Serum

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Pros:

  • Long list of useful features, including:

What we like:

  • Grown hair well
  • Does not leave a stickiness, not greasy , fast-drying

Read more about the Evolution Argan Oil Serum

14. Nubi Boosting Hair Serum

Our rating: 8 / 10

Nubi Boosting Hair Serum

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Pros:

  • Lightweight and fast-absorbing
  • Soft and natural looking waves
  • Long lasting

This line won't weigh your hair down or make it oily after application. It will give you strong, full bouncy hair you never got from your hair products. The waves you make with this formula will last, also, unlike most of the other serums in the market.

This is a keratin-filled formula that will leave your hair feeling soft and healthy. It is designed to shield your hair from the damage of heat styling, sun damage and chemical abuse.

You can also use this serum to smooth down dry and frizzy hair. If you want smooth and shiny hair you can use this serum before shampooing your hair to add extra moisture.

Read more about the Nubi Boosting Hair Serum

15. GIOVANNI Repairing Super Potion Hair Serum Blackberry & Coconut Restoring Treatment

Our rating: 8 / 10

GIOVANNI Repairing Super Potion Hair Serum Blackberry & Coconut Restoring Treatment

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Pros:

  • Easy to use and not sticky
  • Keeps your curls looking messy but in control
  • Gives long-lasting curls
  • Also works great on short hair

Cons:

  • The smell can be a little too strong for some people
  • People have complained that it may not work well on textured hair
  • It can be a little difficult to wash it out if it gets too wet

The Giovanni Blackberry and Coconut Serum is a fantastic hair product for people who have both curly and long hair. It can also work for short hair to give waves and a little hold. In most cases your hair won’t feel sticky when using this product, which is great.

The people who created the product say that it is made of wild blackberries and coconuts. These natural fruits give your hair a great condition without making it strawlike. It is also paraben and silicone free which means there is no damage being done to your hair.

This product actually goes on smoothly and you don’t have to worry about wearing a hat to bed.

Read more about the GIOVANNI Repairing Super Potion Hair Serum Blackberry & Coconut Restoring Treatment

16. RUSK Designer Collection Thermal Serum

Our rating: 8 / 10

RUSK Designer Collection Thermal Serum

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Pros:

  • Provides ultimate protection and shine
  • Gives your hair a healthy and luxurious look
  • Prevents frizz and keeps hair straight for three days
  • Uniquely formulated with Argan Oil and botanicals
  • Apply a small amount of serum to wet hair
  • Blow dry with a flat iron for ultimate shine and long lasting straightness
  • When styling apply to damp hair to prevent fly-aways and static

Ideal for All Hair Types.

The Rusk Designer collection is an excellent choice for controlling and styling your hair. It leaves a soft, luxurious shine and smoothness without build up. From a distance, you can see the sheer elegance of the shine, while coming up close you feel the silkiness of the product. Get the extreme elegance and style with this new designer collection.

The Rusk Designer Collection Thermal Serum is composed of Argan Oil and botanical extracts for an incredible shine and smoothness that last for 3 days.

Read more about the RUSK Designer Collection Thermal Serum

17. Lionesse Vitamin E Hair Serum

Our rating: 8 / 10

Lionesse Vitamin E Hair Serum

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Pros:

  • Use for all hair types
  • It enhances the shine of the hair, bringing out and protecting the natural beauty of your hair
  • It helps fight frizz for a mane of touchable softness
  • It is packed with Aloe Vera and Vitamin E, which help restore luster and softness to your hair
  • It is an excellent moisture treatment for damaged, dry hair
  • It helps to repair split ends while also providing a protective barrier against external damage
  • It helps to strengthen your hair, leaving it stronger and shinier
  • It is great for all hair types
  • It is a lightweight formula with a pleasant scent
  • It leaves the hair silky, supple, and glossy

Read more about the Lionesse Vitamin E Hair Serum

18. Vitamins Keratin Protein Hair Serum

Our rating: 8 / 10

Vitamins Keratin Protein Hair Serum

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Pros:

  • Easy application and works fast
  • Glides on easily, works fast and gets the job done effectively
  • Provides extreme hydration
  • Leaves the hair fresh and shiny
  • Helps strengthen the hair
  • All day hydration for hair
  • Hair looks healthy …

Cons:

  • None whatsoever
  • Great bang for your buck – The fact that the product comes with a money back guarantee speaks volumes about the product and the usefulness customers are taking from it
  • Nothing better than the highest-grade keratin that offers anti-aging and stress protection to your hair….

You'll find it difficult to find a hair product that's more powerful than this hair smoothing serum.

Read more about the Vitamins Keratin Protein Hair Serum

19. OGX Smoothing + Liquid Pearl Luminescent Serum

Our rating: 7 / 10

OGX Smoothing + Liquid Pearl Luminescent Serum

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Pros:

  • Refreshing scent
  • Great for shiny, frizz-free hair
  • Helps Hair Last Longer

Cons:

  • The dropper can make it difficult to get the right amount of product
  • Too much product can leave your hair oily

The makers of OGX believe in the four pillars of beauty. These pillars include health, luxury, productivity, and sustainability. OGX’s Smoothing + Liquid Pearl Luminescent Serum is a product that lives up to the “luxury” pillar by giving you lusciously glossy and incredibly manageable smooth hair.

Read more about the OGX Smoothing + Liquid Pearl Luminescent Serum

20. FOXTAIL Extraordinary Blowout Leave-In Hair Serum

Our rating: 7 / 10

FOXTAIL Extraordinary Blowout Leave-In Hair Serum

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Pros:

  • Miraculous hair serum
  • Gives a smooth and silky finish with a matte texture
  • Reactive conditioning agent
  • Heat protectant
  • Controls frizz and prevents split ends
  • Protects the color of your hair from damage

Cons:

  • Doesn’t work very well on frizzy hair
  • Has a few bugs that can ruin the performance of the serum.
  • Might leave a few white flakes in your hair
  • Not very suitable for African American hair.

Color Silver, Fragrance Free.

FOXTAIL Extraordinary Blowout Leave-In Hair Serum infuses hair with keratin & pro-vitamin B5 to deliver salon-performance frizz control and volume. The lightweight styling serum works brilliantly on all hair types to protect, correct, and perfect from the root to the tip. It imparts last-lasting shine, holds your hair style in place, and controls frizz while preventing split ends. Fragrance : Color :

In all, if you looking for a hair serum that will prevent your hair from frizz and give it a silky texture with a matte finish, then this hair serum is a good choice.

Read more about the FOXTAIL Extraordinary Blowout Leave-In Hair Serum

21. TIGI Bed Head Control Freak Serum 3 8.45 oz

Our rating: 6 / 10

TIGI Bed Head Control Freak Serum 3 8.45 oz

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Pros:

  • The serum contains nylon fibers which smooth your hair after you blow dry it
  • It is semi-permanent
  • It has a formula that will react to your hair the more you use it
  • It isn’t too sticky and it leaves your hair with a silky smooth feel and a natural shine
  • Why we recommended: This product will help you achieve straight hair with a little texture.

Cons:

  • The quantity is small
  • Why we don’t recommend: If you carry out an excessive number of treatments, your hair may eventually become weighed down and greasy.

This product is excellent for touching up those fly-away elements but will produce absolutely uniform results.

This product promises to give you a silky look that lasts for up to seven days and contains argon oil. It says its one of the lightest products on the market.

Why we recommended: This product will help you achieve straight hair with a little texture.

Read more about the TIGI Bed Head Control Freak Serum 3 8.45 oz

22. Mixed Chicks Straightening Serum

Our rating: 5 / 10

Mixed Chicks Straightening Serum

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Pros:

  • Developed by a famous hairstylist
  • Natural formula
  • Leaves hair soft, shiny, and full of bounce
  • Controls frizz
  • Creates curls and smooths curls for hair that is large (African – American)
  • For all hair types

Cons:

  • Some find the smell a little off-putting
  • Can leave hair feeling a little crunchy, which some don’t like

Mixed Chicks Straightening Serum effectively straightens thick, curly, coarse, thick, kinky, and wavy hair. You can use it on smooth, wet hair or dry hair.

The uniquely formulated protein-based formula is also an ideal daily hair serum that protects hair from damage and helps maintain its natural moisture.

This serum targets all hair types, especially those that are thick/coarse/curly. Mixed Chicks’ hair serum doubles as a heat protectant. And it leaves your hair smelling fresh and clean.

Read more about the Mixed Chicks Straightening Serum

Conclusion

All hair straightening treatments, including serums, are designed to reduce the bonds that make up the hair shaft and loosen the curl. The waves and curls loosened by these treatments are stored in the cortex of the hair shaft by heat. As the bonds break down, the hair softens. Curl reduction is a result of broken bonds, not the straightening process itself. If the hair is shampooed and moisture is allowed to get back inside the cortex, the bonds will reform and restore the curl. This is why you’ll sometimes see curl return if the product is left in the hair too long and/or the hair is wet.

Our Recommendation

NameCategoryProduct
It's a 10 Haircare Miracle Styling SerumBest OverallIt's a 10 Haircare Miracle Styling Serum
Garnier Fructis Sleek & Shine Anti-Frizz SerumBudget PickGarnier Fructis Sleek & Shine Anti-Frizz Serum
FOXTAIL Extraordinary Blowout Leave-In Hair SerumUpgrade PickFOXTAIL Extraordinary Blowout Leave-In Hair Serum