Best Flat Iron Sprays – 2020 Complete Review

| Last Updated: January 3, 2021

Being a girl, you would love to make new hairstyles. Heating tools are essential parts of your beauty bag to either curl your hair or straighten them or flip them up. However, with excessive heat comes hair damage. For this purpose, you need a good heat protectant for your hair.

Comparison Chart of the Best Flat Iron Sprays


HSI Professional Argan Oil Heat Protector

  • Suitable for various kinds of hair
  • Infused with argan oil to nourish the hair
  • Forms a protective barrier against heat
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ArtNaturals Thermal Hair Protector Spray

  • Promises results that last for longer
  • Rich in antioxidants thanks to the argan oil
  • Contains castor oil, sunflower seed oil, and vitamin B5
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L'Oréal Paris Advanced Hairstyle SLEEK IT

  • Best for the money
  • This heat protecting spray is light
  • Provides frizz-free and sleek hair for three days
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HSI Professional Top 5 Heat Hair Protector & Conditioner

  • It is a good heat protectant
  • Best flat iron spray for natural hair
  • Works as a wonderful leave-in conditioner
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RUSK Thermal Shine Spray, with Pure Argan Oil

  • This spray is a superfine aerosol
  • Best Rusk thermal flat iron spray
  • It has silicones for protection and conditioning hair
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When Would a Flat Iron Spray Come in Handy?

A heat protectant must be applied to your hair before you use hair styling tools. Before using a straightening iron or curling iron, ensure you have the maximum amount of moisture stored in your hair, so your hair remains protected. Here’s when such a spray would come in handy: 

Hair Types

Hair protectant spray must be applied thoroughly all over. Your tresses should be coated so that their natural moisture is retained. A heat protectant is a must for thin or fine hair. Although, this also applies to coarse and thick hair. 


Your heat protectant must contain humectants like propylene glycol and panthenol for locking the moisture. It must also contain silicones like dimethicone and amodimethicone for providing insulation against high temperatures. Use hair sprays with some hold to retain your straightened or curled hair for a longer time. These hair sprays must contain PVP/DMAPA acrylates copolymer, Hydrolysed wheat protein, Quaternium 70, and silicones. With such ingredients, a heat protectant spray will serve to keep your hair smooth and straight. 


Heat protectant sprays are essential for providing non-greasy looks. Plus, skipping out on the heat protectant can also give rise to flyaways. 

What Should I Look For When Buying a Flat Iron Spray? 

It is very important to choose the right flat iron spray so it can match the needs and protection for your hair. 

Hair type

First, you need to consider your hair type correctly. Some of the flat iron sprays contain a big amount of dimethicone. This is a detangling conditioner that helps in giving silkier and slicker hair when they are harder to be straightened like curly and thick hair. Blow out heating foam is essential when it comes to working with curly hair. However, fine and damaged hair will need heat protectant sprays to contain a lot of Cyclomethicone and conditioning elements. It needs extra protection from heat. The serum is required for coarse hair to remove frizz. Coarser hair will need to leave in conditioner for providing protection from heating as well as for moisturizing the hair. 


Silicon is a must to provide a protective layer to the hair for its protection against heat while using a flat iron. The hair cuticles are also sealed with it, and hair is prevented from drying. Hair sprays with protein will help retain the natural protein of the hair. With the application of high heat, the natural keratin of the hair breaks away. Oil-infused sprays are good for moisturizing the hair, providing vitamins for shine and make it healthy-looking. Your hair can nourish with essential oils like Morocco oils, Argan oils, or Obliphica berry. Some are good for adding volume to your hair too. 

Review of the Best Flat Iron Sprays

There are many best flat iron sprays in the market, but you must choose the right one so it can take care of your hair. After all, it is the matter of the health of your hair. We have done an ultimate review of the best flat iron sprays that you can get today.

HSI PROFESSIONAL Argan Oil Heat Protector | Protect up to 450º F from Flat Irons & Hot Blow Dry | Sulfate Free, Prevents Damage & Breakage | Made in the USA | 8 Ounce, Packaging May Vary


  • Heat resistant up to 450 degrees
  • Can be used on dry and wet hair both
  • It gives a weightless feeling to the hair
  • Made in the USA and free from animal testing
  • Argon oil in it promises healthier and shinier hair


  • It has an extremely strong smell
  • Performance of the sprayer is not good

What Recent Buyers Report 

Many of the buyers reported in favor of this Argon oil. They find it extremely effective for hair straightening and report getting a sleek look. It is sulfate-free, paraben-free, and phosphate-free, which made the users feel more satisfied. They were very satisfied with the results of the product, and they find the brand to be a reputable name in the industry too. 

Why it Stands Out to Us 

This Argon oil marked its excellence over other competitors because of its effective results, and it can be used on all hair types. The protection created by it against all hair types is very strong as it can create heat resistance up to 450F. It gives the hair a sleek and smooth look. The product is simply outstanding and made with perfect and premium ingredients. It is made in the USA with pure and rich antioxidants of Argan Oil containing vitamins A, B, C, and D. 

Who Will Use This Most 

It is extremely good for people who are experiencing great hair loss due to over usage of hair styling tools for curling, straightening, or styling. The usage of this hair spray ensures that the Argon oil does not let its users loose more hair follicles than its growth. Your scalp is stimulated with the use of Argon Oil for more hair growth.

Bottom Line 

In a nutshell, this product is extremely good for heat protection because it can provide heat resistance against 450F. However, few buyers criticized it for strong smells, but still, its overall results marked its excellence over all other products. It can be easily used on any hair type, and whether they are wet and dry, it will give equally well results. 

ArtNaturals Thermal Hair Protector Spray - (8 Fl Oz / 236ml) - Heat Protectant Spray against Flat Iron Heat - Argan Oil Preventing Damage, Breakage and Split Ends - Sulfate Free


  • The elasticity of hair will be great
  • You will have a natural feeling with it on your hair
  • After applying it, you can easily comb out your hair
  • Hair remains in the best condition because of the essential oils used in it
  • Curls will last longer, no split ends or tangling because of the Argon Oil present in it


  • The smell is not good
  • Leaves behind a film on the hair when the proper amount is not used

What Recent Buyers Report 

According to the recent buyers' report, this hair protection spray is very good for all hair types because it is rich in antioxidants and has Argon Oil. Along with that, it also claims to have sunflower oil, Vitamin B5, castor oil and coconut oil to protect the hair. It satisfies the buyers with its outstanding results. The natural ingredients ensure shiny, hydrated, and clean hair free from sulfates and paraben. Buyers love the natural look it gives to their hair. 

Why it Stands Out to Us  

This product is extremely good for buyers as it provides them with definite and strong hair protection. It does not just protect your hair against heat and satisfy you, but also works at its maximum to satisfy you fully. It provides a full money-back guarantee if the customer is not satisfied after its usage. In addition, it can be easily returned and get back the money if the user is not 100% satisfied. 

Who Will Use This Most  

It is extremely good for people who are experiencing great hair loss due to over usage of hair styling tools for curling, straightening, or styling. The usage of this hair spray ensures that the Argon oil does not let its users loose more hair follicles than its growth. Your scalp is stimulated with the use of Argon Oil for more hair growth. 

Bottom Line 

To sum up, this hair spray is just as good as the best one. Customers are fully satisfied and can purchase it easily because they know they are guaranteed a 100% money-back guarantee. With the plethora of beneficial ingredients, it promises users a great look. 

L'Oréal Paris Advanced Hairstyle SLEEK IT Iron Straight Heatspray, 5.7 fl. oz. (Packaging May Vary)


  • It creates frizz-free hair
  • Gives heat protection up to 450F
  • Can keep sleek hair for three days
  • Packaging is travel-friendly and appealing
  • Provides great quantity at a nominal price


  • Has an unpleasant smell
  • It leaves behind a greasy residue on the hair after multiple uses

What Recent Buyers Report

According to the recent buyers' report, this product gave satisfactory results to its users. The hairs can have a sleek look maintained for 3 days. They felt that it was lightweight. Its usage was easy and made their hair easily manageable. Despite being wet, this humidity-resistant spray protects hair effectively. You will experience no damaging. 

Why it Stands Out to Us? 

It has been greatly praised by its users because it can maintain their hairstyle for three days. Users don’t need to apply it again and again. Its feature of retaining and maintaining the sleek look makes it the best hair spray in the market. Moreover, it offers a great quantity at nominal prices to its users. 

Who Will Use This Most? 

This can be used by travelers because it will help to maintain the sleek look for complete three days as claimed by the product. The frizz is removed, moisture is locked, and the ends are maintained to give dead gorgeous and sleek, shiny hair to the users. It has made its users happy and content with the essential oils contained in this spray to provide heat protection up to 450F. 

Bottom Line 

Overall, it is a great spray that fits in your budget too. It is well-known not just for its performance merely but also famous for improving hair fall and maintaining its sleekness for 3 days. It is available in good quantity for a nominal price that makes it budget-friendly too.

Best Flat Iron Spray for Natural Hair:
HSI Professional Top 5 Heat Hair Protector & Conditioner

HSI PROFESSIONAL Top 5 Heat Hair Protector & Conditioner | Flat Iron & Hot Blow Dry Thermal Guard | With Argan, Coconut, Macadamia, Olive Oil & Vitamins | Made in the USA | 8 Ounce


  • Mild formula that is color safe
  • The shine of your hair is revitalized
  • Free from sulfates, parabens, and phosphates
  • Made in the USA with premium quality ingredients
  • Extra light product available in a convenient spray bottle
  • You may not get the desired results when used on wet hair


  • It is good for wet hair only
  • Sensitive people may dislike it because of its intense smell

What Recent Buyers Report 

The majority of the recent buyers showed great support for it because of its 5 action formula. It is used as a hair protectant for protecting your hair. It is also a smoothing serum and conditioning that can be left on the hair and continue with styling. Along with that, it works as a transformative serum as it boosts your hair shine, quickens your drying time, and detangles your hairs quickly. It can also be used as a sunscreen. It is infused with Argan oil and vitamin to make your hair radiant for the whole day. The strands are strengthened after replenishing and sealing moisture, revitalizing the shine, and stimulating the follicles. 

Why it Stands Out to Us  

Given its 5-action formula, it is a must-have product. It can protect the hair from damage and make it frizz-free. It can even be used as a detangler because, after its application, you can have radiant hair in one go. It is a perfect sunscreen as well, which soothes the scalp and repairs your damaged hair. It is a perfect solution that works both as a hair protector and a leave-in conditioner. 

Who Will Use This Most  

The gentle conditioner in it makes this product highly preferable and outstanding in the market. It is perfect for daily use. It is liked by buyers because it can be used on all types and textures of hair. The formula is free from color, sulfates, parabens, and phosphates. It is ideal for sensitive and allergic people too. 

Bottom Line 

This is truly the best hair spray for you because of its five-action formula. It is not only a hair protector but it is an equally effective leave-in conditioner too. It can protect your hair from further damage if applied right before you start straightening your hair. 

Best Rusk Thermal Flat Iron Spray:
RUSK Thermal Shine Spray, with Pure Argan Oil

Rusk Thermal Shine Spray, Pure Argan Oil, 4.4 oz


  • The frizz is removed
  • Has a short drying time 
  • Hair is protected from heat stress
  • It is ideal for both dry and wet hair
  • Cuticle and hair shafts are protected with its usage


  • Sprays like a dry oil
  • It made hair bit greasy
  • The smell is not too good

What Recent Buyers Report 

According to the recent buyers' report, the majority of its users liked the product and found it to be perfect to be used on their hair for straightening. They liked the spray because it shortened the drying time, restored the moisture in the high humidity, and made the hair sleek, straight, and super shiny. It stopped the hair from any damage when it is applied properly on the hair.

Why it Stands Out to Us 

This spray is designed to add body, volume, and shine to your hair without any buildup. It greatly protects the hair cuticles and hair shaft. It is highly enriched with silicones for conditioning and protecting your hair where it is needed most. It has the best formula for eliminating frizz, which will leave behind shiny, smooth, sleek, and straight hair. This spray has Argon oil that makes it great for incredible shine and conditioning. 

Who Will Use This Most  

This can be easily used by people with long and dull hair. This will shorten the drying time of long hair. The dull hair will get shine and volume too. It can be used by girls and women excessively straighten and curl their hair. Hairstylists can enjoy working with it because it will give the best results to its clients after its usage. 

Bottom Line  

To sum up, this product is ideal for all the hair types and textures. All the buyers show their complete satisfaction and trust in the product because it has silicones and argon oil. Both of these ingredients protect the hair from damage and let you enjoy all the hairstyling due to curling and straightening without the fear of any damage.

Aspects to Consider Before Buying

With so many different oils and products that claim to be the best for protecting hair, it becomes tough to choose the right one. However, before you purchase a flat iron spray, make sure you know the following:

Argan Oil

This Argon Oil is found in Morroco, originally. Staple hair products for women have argon oil as a must. With this, hair can easily be protected from the high heat along with high temperatures of up to 360 degrees. Argon oil is good for protecting and nourishing hair from the outside and inside because of Omega 6 fatty acids, vitamin E and Omega 3 Fatty acids.

Coconut Oil

Coconut has been greatly praised for its moisturizing benefits and high smoke point. Coconut oil is used as a natural and effective heat protectant for hot styling tools and flat irons. 350 degrees is ideal for thin and fine hair. Temperature above that is not recommended for such hair. It is also a good anti-dandruff as well as anti-microbial. Continuous usage of coconut oil will protect and heal up your damaged hair health. Hair will grow luscious long with its usage.

Avocado Oil

Avocado oil is simply loved when we need heat protectant for repairing and nourishing hair. Your hair will look shiny and soft because of the healthy fats in avocado oil. It does not just protect from the heat of flat irons but also provides protection from the sun. It acts as a sunscreen that protects from UVB and UVA rays of the sun. Avocado has a smoke point of 520 degrees.


Protecting your hair from heat damage will help to keep it looking luscious and healthy. Heat protection sprays and serums can provide that protection while penetrating the hair with varying vitamins, proteins, and nourishing components.

While protection sprays like this work wonders to help prevent heat damage, try to make sure you limit the use of high-temperature instruments such as flat irons, as continuous use will always do a little damage, no matter the precautions you take.

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Hi I'm Emilia! I like to think of myself as the "crash-test-dummy" of the hair world. Whether that means testing out the newest curling iron or going with fresh hair styles. I like to mix it up. I share my thoughts on Caffe Hair based on my first hand experience!