10 Budget Kerastase 8H Magic Night Serum Dupes in 2025

How About Kerastase 8H Magic Night Serum?

The Kerastase 8H Magic Night Serum is the brand’s newest product. It is a beauty sleep serum for dry hair, leaving hair feeling smooth for up to 8 hours overnight. This overnight hair treatment contains anti-dryness polymers for immediate care with a lightweight feeling texture.

The nourishing overnight hair serum works for up to 8 hours to smooth and strengthen dry hair and help protect from pillow friction.

Fragrance Description: This serum smells like a fresh and floral composition, with top notes of ylang, royal jelly, and violet leaves for a clean scent, middle notes of wild rose, jasmine, and tonka bean to capture the floral aroma, and bottom notes of sandalwood, white cedarwood, and cinnamon.

Price: $59 (3.04 oz / 90 ml)

Key Ingredient: Plant-Based Proteins,Niacinamide,Glycerin

Hair Type:Dryness,Shine,Damage, Split Ends, and Breakage,All Hair Types

Key Benefits:

• Protects from pillow friction

• Restores fiber hydration with deep 8-hour action

• Restores radiant, youthful fiber by morning

• Helps restore natural hydration level

Where to buy Kerastase 8H Magic Night Serum?

You can get Kerastase 8H Magic Night Serum at below websites:

• Kerastase: Up to 7% Super Cash Back

• Walmart: Up to 4% Super Cash Back

• Sephora: Up to 4% Super Cash Back

• Adore Beauty: Up to 6% Super Cash Back
  

Money Saving Tip: If you want to buy any hair mask online, Sign up at Extrabux first，(What is Extrabux?), then book through these websites,  so you can enjoy up to 7% cashback from Extrabux! Sign-Up Bonus: Free to join it & get a $20 welcome bonus!

Extrabux.com cooperates with many merchants, such as:Sephora（4% -5% cash back)，Dior (Up to 6% cash back), Moosejaw (5% -6% cash back), LOOKFANTASTIC (Up to 10% cash back), Microsoft (Up to 7% cash back) and so on.

10 Best Kerastase 8H Magic Night Serum Alternatives 2025

1.HerStyler Hair Repair Serum

Price: $16@herstyler.com;$18.88@walmart.com

Review:  You don’t have to break the bank to add a game-changing serum to your arsenal. This $12 serum recently went viral after thousands of stellar reviews hit the internet. This product is a no-brainer dupe for the Kerastase Nutritive 8H Magic Night Serum. Save yourself some cash and get your hands on this dupe.

Both of the HerStyler and Kerastase hair serums transform dry, damaged hair and leave it looking glossy and healthy. They are formulated with powerful natural ingredients that instantly nourish the hair. And This HerStyler  hair serum is Argan Oil with Provitamin E formula for healthier hair and instant shine. 

Key Ingredients: Argan Oil | Size: 2 Fl. Oz / 60 Ml | Cruelty-Free: No

For Hair Type: Curly, Dry Hair

Key Benefits:

• Helps reduce frizz

• Contains Aloe and Argan oil extracts

• Ii is suitable for straight and curly hair

2.Redken Frizz Dismiss Instant Deflate Oil-In-Serum

Price: $32@redken.com;$30.45@walmart.com

Review:  Redken's Frizz Dismiss Instant Deflate Oil-in-Serum controls puffiness and frizz caused by humidity. Suitable for all hair types. Best for moderate frizz. Sodium chloride-free and sulfate-free. And it just at $32 for 125ML， which is more cheaper than Kerastase 8H Magic Night Serum.

  This rich oil-serum hybrid is brilliantly effective when it comes to calming the unwanted volume that humidity and unexpected showers can induce. Frizz occurs when moisture reaches the hair strands, reverting them back to their natural texture. The lightweight silicones in this formula wrap around each individual strand, preventing moisture from penetrating and thus preventing frizz from occurring. Trust it to keep curls defined and smooth blow-dries intact.

Key Ingredients:  babassu oil | Size: 125ml  | Cruelty-Free: Yes

For Hair Type: All Hair Types

Key Benefits:

•  Frizz-fighting for all hair types

•  Protects hair from heat and humidity

• Dismisses unwanted volume and adds a glossy shine

• Provides lasting frizz control, smoothness, and humidity protection

• Protects from heat styling up to 446 degrees

3.L'Oréal Professionnel Série Expert Inforcer Night Anti-Breakage Serum

Price: $14@lookfantastic.com; $33.98@walmart.com

Review:  If you’ve been patiently waiting for your hair to grow longer but it feels like your strands just won’t budge, chances are good you’re dealing with breakage. Help your mane reach its full potential by adding L’Oreal Professionnel’s Serie Expert Inforcer Night Anti-Breakage Serum to your hair care routine.Simply glide the lightweight serum through dry locks before bed and leave in hair overnight. The potent formula utilises Biotin and Vitamin B6, which work harmoniously to detangle difficult knots, treat current breakages and prevent future damage. The infusion of Vitamin B6 stimulates protein metabolism to promote healthy hair growth and strengthen the fiber, while Biotin encourages healthy hair development.

Key Ingredients: Biotin, Vitamin B6 | Size: 5.1 oz/150ml | Cruelty-Free: Yes

For Hair Type: Breakage, Dry Hair

Key Benefits:

• Overnight serum-gel

• Strengthens hair

• Reduces breakage

4.Olaplex No. 9 Bond Protector Nourishing Hair Serum

Price: $30@olaplex.com;$30@sephora.com

Review:  Olaplex’s No.9 serum is on the Kerastase 8H Magic Night Serum dupes list because it does it all-hydrates, protects, adds shine—for all hair types. 

It's a weightless, leave-in styling serum that’s rich in antioxidants to help protect from pollution, heat, and future damage for shine, bounceback curls, and anti-static and anti-tangle action. Can be used on clean, damp hair and reapplied between washes.

Key Ingredients: Red algae extract, bond-building technology  | Size: 3 oz.  | Cruelty-Free: Yes

For Hair Type: All Hair Types

Key Benefits:

• Delivers shine, style retention, and bounce

• Reduces tangles and static

• Protects against environmental aggressors and heat

5.Garnier Fructis Sleek & Shine Anti-Frizz Serum

Price: $7.99@garnierusa.com; $5.99@walgreens.com

Review:  If you are looking for cheaper Kerastase 8H Magic Night Serum dupes, Garnier’s Sleek & Shine serum is a prime example that you don’t have to compromise your budget for a good hair day. Whether you have curly, straight, or dry hair, its blend of apricot and argan oils will provide you with a smooth finish—all for under $8.

Fructis Sleek & Shine Anti-Frizz Serum with sustainably sourced Argan Oil from Morocco plus Kera-System soaks into frizzy, dry, unmanageable hair for lasting smoothness and shine. 

Key Ingredients: Argan oil, apricot oil | Size: 5.1 Fl Oz/150ml  | Cruelty-Free: Yes

For Hair Type: Dull, Wavy, Curly, Straight,Coarse, Frizzy Hair

Key Benefits:

• Up to 72 hours of frizz control, even in 97% humidity, with our hair serum infused with argan oil plus Kera-System+

• Paraben Free

• Leaping Bunny certified, Cruelty Free and Vegan

6.Alterna Haircare CAVIAR Anti-Aging Restructuring Bond Repair Leave-In Overnight Serum

Price: $40@sephora.com; $40@dermstore.com

Review:  Split ends can take your blowout from sleek and smooth to raggedy and tragic in no time. If you don’t have time to head into the salon for a trim or think Kerastase 8H Magic Night Serum is too expensive but also want a beautiful hair, use the Alterna Haircare CAVIAR Anti-Aging Restructuring Bond Repair Leave-In Overnight Serum to temporarily seal and mask the appearance of split ends.

This unique treatment absorbs quickly to provide a deep level of repair and moisture overnight. Caviar Bond Enforcing Technology strengthens each strand and helps to reconstruct damaged hair while you sleep.

Key Ingredients: Caviar extract, phytantriol| Size: 3.4 oz/100ml | Cruelty-Free: No

For Hair Type: Coarse Hair, Color-Treated Hair, Curly Hair, Dry or Damaged Hair, Fine Hair, Normal Hair, Oily Hair

Key Benefits:

• Helps to repair and replenish damaged hair while you sleep.

• Reduces breakage by up to 99%.

• Helps smooth cracks and fissures in the cuticle layer.

• Increases shine and helps to restore moisture.

7.OGX Nourishing + Coconut Milk Anti-Breakage Serum

Price: $8.39@target.com; $5.92@walmart.com

Review:  Another pick for the best affordable Kerastase 8H Magic Night Serum dupe is the OGX Coconut Milk Anti-Breakage Serum. It contains a unique blend of organic weightless coconut oil and silk and keratin proteins to instantly repair dry, damaged, coarse, and chemically treated hair. This luxurious serum helps resurface the hair, repair damaged hair and cuticles, and mend split ends and frizziness.

Coconut Milk Anti-Breakage Serum adds strength and elasticity to weak, brittle, and damaged hair and promotes longer hair by helping reduce everyday damage. Plus, the light, refreshing coconut milk scent will leave your hair smelling amazing!

Key Ingredients: Coconut Milk & Coconut Oils | Size: 4 fl oz/118ml  | Cruelty-Free: Yes

For Hair Type: All Hair Types, Coarse

Key Benefits:

• Suitable for all hair types & textures, this coconut hair treatment promotes strength & elasticity

• Fresh creamy coconut, white peach & shea butter scent leaves tresses smelling irresistibly good

• The sulfate-free surfactant haircare system is paraben-free, gentle & leaves hair feeling nourished

• This moisturizing leave-in hair treatment softens and smooths hair leaving it glowing and soft

8.Mizani Therma Strength Heat Protecting Serum

Price: $22.50@mizani.com;$13.22@walmart.com

Review:  If you love heat styling your hair, you need this heat protecting serum in your arsenal. The Mizani Thermastrength Heat Protecting Serum is the perfect primer for all of your heat styling needs. Formulated with shea butter and ceramide, it helps prevent breakage from heat styling.

It is specifically formulated with patented advanced strengthening and anti-breakage ceramide technology to dramatically improve the hair's tensile strength, leaving the hair feeling strong, shiny and full body, when using any heat application.

Key Ingredients: shea butter and anti-breakage technology | Size: 5 Fl Oz/148ml  | Cruelty-Free: No

For Hair Type: Coily, Curly Hair

Key Benefits:

• This hair styling cream works best with curly to tightly coiled strands. 

• Lowdry assistance and heat protection for higher texture types.

• Heat tools are able to glide easily, taming hair and making it super manageable.

9.Pureology Hydrate Shine Max Weightless Flyaway Serum

Price: $23.19@fashionandbeautystore.com; $18.20@lookfantastic.com

Review:  Pureology ShineMax helps protect color for long-lasting shine and smoothness. Instantly smoothes flyaways and adds vibrant shine while keeping color radiant.  And it's more cheaper than Kerastase 8H Magic Night Serum which also can help you to get high  quality hair.

This weightless ZeroAlcohol serum delivers light nourishment and creates naturally soft, lustrous hair Pureology's exclusive AntiFadeComplex is designed to protect your hair color from UVA/UVB and thermal damage.

Key Ingredients: Jojoba, green tea and sage condition | Size: 4.2 oz/125ml  | Cruelty-Free: No

For Hair Type: Frizz, Colored, All Hair Types

Key Benefits:

• Instantly smoothes fly-aways and adds vibrant shine

• Delivers light nourishment and softness

•  Eliminates frizz

•  Enhances color retention

• Increases color vibrancy

10.Pattern Jojoba Oil Blend Serum

Price: $28@patternbeauty.com; $28@sephora.com

Review:  The Pattern Jojoba Oil Blend Serum is the last cheaper Kerastase 8H Magic Night Serum dupe on our list. Formulated with all kinds of curls and kinks in mind, the brand’s jojoba and rosehip-based hair serum sinks into brittle low-porosity hair to add lasting moisture, adding bounce to coils and imparting shine in the process.

Smelling like heaven,the Jojoba Oil for Hair helps to create a sacred space for your scalp. It’s a super lightweight, oily residue-free blend of beautiful oils like Safflower Oil, Jojoba Oil, Rosehip Oil, Olive Oil & Lavender Oil, perfect to help a low porosity hair type retain moisture to prevent damaged hair by reducing breakage. 

Key Ingredients:  Jojoba, Lavender and Safflower Oil | Size: 3.9 fl oz/115.3ml  | Cruelty-Free: Yes

For Hair Type: Coily, Curly, and Wavy Hair

Key Benefits:

• Promotes health and maintains elasticity

• Maintains moisture to reduce breakage; ideal for low-porosity hair

• Soothes itchy, flaky scalps

How to Use Hair Serum?

To get the most out of your hair serum, it’s important to apply it properly. Here’s how to do it:

• For best results, apply your initial application of hair serum to clean, damp hair.

• Add 1 to 2 drops of hair serum to the palm of your hand. Warm the serum between your hands for 5 seconds.

• Apply to your hair, working from the ends up to the middle of your strands. Try to spread the product evenly with your hands. Avoid applying the serum to your roots or using too much product, as this can make your hair look greasy.

• Be gentle when applying hair serum. Avoid pulling through your hair, which can cause damage.

• Once you’ve finished applying the serum, use a wide-tooth comb to gently distribute the serum evenly from the middle of your strands down to the ends.

• Style your hair as usual.

• If necessary, you can use a serum throughout the day to touch up your hair.

Frequently Asked Questions About Hair Serums

1.What does a hair serum do?

Hair serums are these silicone-based products that coat strands to make them shinier and healthier. A good serum for the hair should be able to prevent tangles from occurring. It is also supposed to make your hair softer and frizz-free. 

Using a hair serum can also help with minimizing hair loss and even protect it against heat especially when using styling tools like flat irons and curling wands. 

Applying this product on your hair must be able to protect it against the sun and exposure to dust, grime, and other pollutants for that matter.

2.What is the difference between hair oil and hair serum?

Hair oil is is a formulation that needs to be washed off your hair. Oils, nourish the scalp and hair and adds shine to it. 

A hair serum on the other hand is a leave-in product that does not have to be washed off. It can be used after washing your hair. It forms a protective layer on the cuticles to build a shield against dust and dirt. It is best when it is light-weight and non-greasy. You can also use a hair serum for styling your hair.

3.When should we apply serum to hair?

Hair serum should be applied on clean, damp hair before drying or styling hair. Simply, put a few drops in your hand and work through the hair. If you’re someone with oily hair, avoid the roots and if you’re someone with dry or weak hair, focus on applying to the ends of your hair.

4.How many times a week should we use hair serum?

In general, lightweight hair serums can be used daily to protect your locks against the elements and heat styling. For thicker, oilier products, aim to treat your hair with them once or twice a week.

5.How much hair serum should you use?

While the hair serum should be used on the washed hair, so if you wash your hair daily, the hair serum can be used daily. Take 2-3 drops of the hair serum and not more than that, as it is more than enough to cover the hair strands. For a person having really long hair, 4-5 drops could be done.

Also, depending on the hair requirement, like to have frizz-free or curly, wavy or straight and silky looking hair, the quantity of hair serum can vary.

Read More:

10 Best & Affordable Kerastase Hair Oil Dupes: Comparison & Reviews 2025

Top 10 Affordable Kerastase Curl Manifesto Dupes in 2025

10 Best & Affordable Gisou Hair Oil Dupes: Comparison & Reviews 2025

10 Cheaper K18 Hair Mask Dupes in 2025

8 Cheaper Oribe Gold Lust Shampoo and Conditioner Dupes in 2025

10 Cheaper Pureology Hydrate Shampoo and Conditioner Dupes in 2025

Pureology Hydrate vs. Hydrate Sheer vs. Strength Cure: Differences and Reviews 2025

10 Cheaper Redken All Soft Shampoo and Conditioner Dupes in 2025

10 Cheaper Living Proof Dry Shampoo Dupes in 2025

Top 15 Best Dry Shampoos and Conditioners for Asian Hair 2025

Top 15 Korean Shampoos and Conditioners for Hair Loss 2025

Top 15 Best Shampoos and Conditioners for Asian Hair 2025

Top 10 Drugstore Ouai Leave-in Conditioner Dupes in 2025

Top 17 Drugstore Hair Dyes for Asian Hair in 2025

Extrabux is an international cashback shopping site, offering up to 30% cashback from 10,000+ Stores!

LOOKFANTASTIC, SkinStore, SkinCareRx, Feelunique, Cult Beauty, Sephora, Belk, Estee Lauder, Lancome, La Mer, Kiehl's, Clinique, Elizabeth Arden, Adore Beauty, Sol de Janeiro, Hourglass, Lancer, Shiseido, FOREO, Macy's, etc.

Join to get $20 welcome bonus now! (How does Welcome Bonus work?)