10 Reviews: Best Hair Serum for Straightening (Dec 2023)

Coconut oil is the main component in this leave-in serum, and because of its healing effects, it has long been considered a Black girl’s closest friend. Then there’s Acacia Senegal and coconut milk, which help to detangle curls, minimize frizz, and keep them straight and smooth for a long time. The nicest thing about this serum is that it’s free of potentially dangerous ingredients like petrolatum, dehydrating alcohol, parabens, and phthalates. It also doesn’t include silicone, which is known to weigh down your hair and is excellent for straightening it.

Honestly I’ve tried so much for my fine thing hair and when I put this in at night after a shower I wake up with soft straight beautiful hair . This really does work idk why but it just does not greasy at all it’s like magic in a bottle . I’m impressed

by Amazon Customer

Binta Beuty Organics’ hair serum is designed to rejuvenate, strengthen, and protect hair in both men and women, resulting in stronger, thicker, fuller, frizzy, and longer hair. This hair serum contains vitamins A, B, D, and E, as well as important fatty acids and proteins, all of which are good for your hair’s health, especially if you want to straighten it. The amber-brown bottle shields the contents from UV rays while also allowing you to spot treat hair as needed. It’s small enough to fit into a purse or workout bag. You can choose from four different sizes!

If you’re searching for the best hair serum for straightening your hair, this OGX hair serum might be the greatest alternative. The formula incorporates sea kelp extracts to protect your hair and pearl extracts to give your hair a glass-like sheen. This hair serum is ideal for smoothing hair so that it reflects light and brightness. Assist strands in feeling nourished and becoming sleeker and shinier. Our Smoothing + Liquid Pearl Luminescent line, infused with pearl extract and sea kelp, will have your strands looking shiny and smooth like the inner mermaid we all know you are!

It feels light and water based not sticky at all like others described. The scent isnt strong either like i read from others. I found the scent to be extremely light. There is very noticable shimmer in my hair in person. Its very pretty. I think it looks better probably on dark hair or artificial bright colors. It wouldnt show as well on light hair.....

by Salem

The composition is rich in emollients like glycerin, which nourish each strand and leave hair soft and silky. This is the ideal hair serum to use if you want to straighten your hair. This cream contains thermosetting polymers, which are activated when heated with a flat iron or a blow dryer. All you have to do now is apply this cream to damp hair and straighten it. It makes your hair look straighter, smoother, and easier to control.

Works perfect. My hair is so smooth soft and shiny. My hair looks so like I just left the salon after drying with my drying brush to straighten my hair. No other smoother worked as well.

by Danielle McBain

Demonstrate your smoothness. Biolage SmoothProof Serum, inspired by nature’s water-resistant camellia, helps you straighten your hair by providing humidity control, anti-frizz smoothness, and shine. Frizz and flyaways are tamed while shine is added. Protects hair from heat styling equipment and humidity while keeping it silky. Color-treated hair can also use this paraben-free product. If you’re seeking for the best hair serum for straightening your hair, try this one. With over 1500 ratings, you can rest assured that this one will not let you down.

Everything I ever wanted when I straighten my hair, absolutely love!!! Start with one pump and then you can try two by dividing your hair right down the middle and doing both sides evenly...don’t touch the roots :) Pics before straightening and after ;)

by Ely

The Body Shop Grapeseed Glossing Serum is an excellent choice if you want to add shine and gloss to your straight hair tresses. It contains grape seed oil and sesame seed oil, which nourish the strands while also preventing frizz. This hair serum is one of the most effective products for keeping hair straight in humid conditions. It contains silicones, which add a layer of glass-like sheen to your hair. 

One of the best smelling and most effective serum I’ve used. Very light on the hair but the difference is immediate. Will buy again!

by Connie

The texture of already straightened hair is usually preserved by straightening serums. They lengthen the life of your straight, textured hair and keep it from frizzing. However, this Wella product actually transforms curly hair into a straight, sleek mane. It’s dermatologically tested and has a cationic base that adds moisture to your tresses and makes them silky smooth, so you don’t have to worry if you want to try this hair serum for straightening your hair!

Easy to apply at home, quick and didn’t damage my already bleached hair!
Will buy again for sure!

by Maria Gubel

A nourishing overnight serum-containing Japanese red camellia oil that hydrates hair while you sleep, resulting in shiny, soft, and less-frizzy hair by morning, ready to welcome the new healthy straight hair. Because it is made with organic ingredients, it has a woody and earthy scent. It comes in a black bottle with a 3.3 oz/100 mL capacity that is portable and easy to bring anywhere to help you straighten your hair.

My waist length colored , fine texture hair has been breaking. Desperate to find an answer and stop. The breakages I tried this and was pleasantly surprised. It makes my hair soft, manageable and I eee less breaking while using this. Love it!

by freyaartemis

This one will protect your hair from heat styling while also leaving it smooth, hydrated, and silky (shout-out to the sea buckthorn berry in the formula). This one comes in very cute packaging in a pump bottle, making it safe to bring anywhere without worrying about it being proof. It is made of Dimethicone, which protects against thermal treatments, prevents moisture loss, and forms a barrier on the hair that smooths down the cuticle, providing excellent anti-frizz benefits. It is the best hair serum to choose from if you want to straighten your hair.

I absolutely love this ! I have fine straight hair but a lot of it and this makes me hair softer than any product I have ever used. Smells great and love that it protects my hair and makes it feel great.

by Madelynpalmer

It has a pleasant aroma and a low price, but we chose it for what it does: Its nourishing coconut oil and hydrating bamboo extract will help your hair become smooth and straight, increase shine, and maintain movement and fluidity. Because it’s so light, you can keep spraying it on throughout the day. With each use, it helps to generate hydrated hair that is soft, touchable, and healthier-looking; spritz on moisture and hydration for healthier looking hair, and say hello to your new straight hair with this exotic & appealing lightweight combination infused with coconut oil & bamboo extract.

I like this so much better than the hair serum I was using before that requires you to rub a small amount between your hands then apply to your hair. This you just spray a small amount and brush or comb through. It smells amazing and leaves my hair super soft, shiny, and no more frizzies!! ...

by KG