Welcome to our breakdown of the 25 best L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum dupes and alternatives.
Looking for dupes for a different product? You can use our Dupe Finder to search for them!
If you'd like to see the all of the L'Oréal Professionnel dupes that we've found, check out our best L'Oréal Professionnel dupes guide.
We use hundreds of science-backed factors to find you the best dupes.
Learn more about our dupe methodology
Our Roundup
Here's a quick roundup of our findings. Continue reading for the full breakdown!
Garnier's Sleek & Stay Heat-Activated Serum is the dupe with the most similar ingredients. Our matching methodology puts it at an 82% ingredient match!
Of all of the dupes for this product, Paul Mitchell's Super Skinny Serum is the most liked by our community. Our matching algorithm puts it at an 66% overall match!
- Garnier Sleek & Stay Heat-Activated Serum 1
- Garnier Lisci Impeccabili Siero Termoattivo 2
- got2b Smooth Operator Smoothing Satin Drops 3
- Ion Styling Solutions Humidity-Defying Serum 4
- Matrix Mega Sleek 96H Anti-Frizz Topcoat Serum 5
- Cloud Weightless Glossing Serum 6
- The Modani Hydration Scalp Health Hair Serum 7
- Saphira Healing Repair Mineral Drop 8
- Paul Mitchell Super Skinny Serum 9
- Amika Blockade Heat Defense Serum 10
- Design Essentials Silk Essentials Thermal Strengthening Serum 11
- Design Essentials Agave And Lavender Weightless Thermal Protectant Serum 12
- Biolage Smooth Proof Serum 13
- The Body Shop Grapeseed Glossing Serum 14
- Mon Platin Black Caviar Total Repair Serum 15
- Ybera C360 Thermic Gloss 16
- It’s a 10 Miracle Styling Serum 17
- Ion Styling Solutions Silk Drops 18
- Vitress Hair Cuticle Coat Classic 19
- Muk Hot Muk Smoothing Serum 20
- Ziaja Argan & Tsubaki Oils Smoothing Hair Serum 21
- The Face Shop Essential Damage Care Hair Serum 22
- L'Oreal Serioxyl Advanced Denser Hair Serum 23
- John Frieda Frizz Ease All-In-1 Serum 24
- Pretty Skin Argan Hair Serum 25
Overview
What it is
Hair serum with 7 ingredients
Cool Features
It is vegan, fungal acne (malassezia) safe, and reef safe
Suited For
It has ingredients that are good for scar healing
Free From
It doesn't contain any harsh alcohols, oils, parabens or sulfates
Garnier Sleek & Stay Heat-Activated Serum
86% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Garnier Lisci Impeccabili Siero Termoattivo
86% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
got2b Smooth Operator Smoothing Satin Drops
74% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Ion Styling Solutions Humidity-Defying Serum
73% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Matrix Mega Sleek 96H Anti-Frizz Topcoat Serum
68% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Cloud Weightless Glossing Serum
66% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 3 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
The Modani Hydration Scalp Health Hair Serum
66% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Saphira Healing Repair Mineral Drop
66% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
66% match
with the ingredients and function of Paul Mitchell Super Skinny Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
64% match
with the ingredients and function of Amika Blockade Heat Defense Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 3 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Design Essentials Silk Essentials Thermal Strengthening Serum
64% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Design Essentials Agave And Lavender Weightless Thermal Protectant Serum
63% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Biolage Smooth Proof Serum
62% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
The Body Shop Grapeseed Glossing Serum
62% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Mon Platin Black Caviar Total Repair Serum
62% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Ybera C360 Thermic Gloss
61% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
61% match
with the ingredients and function of It’s a 10 Miracle Styling Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
61% match
with the ingredients and function of Ion Styling Solutions Silk Drops
Dupe Explained
These products are both hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Vitress Hair Cuticle Coat Classic
60% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 2 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also fungal acne (malassezia) safe and reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Muk Hot Muk Smoothing Serum
58% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 3 ingredients in common.
They both do not contain any harsh alcohols, oils, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Ziaja Argan & Tsubaki Oils Smoothing Hair Serum
58% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
The Face Shop Essential Damage Care Hair Serum
58% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 5 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
L'Oreal Serioxyl Advanced Denser Hair Serum
56% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any oils, parabens or sulfates. They both contain common allergens and fragrances.
Both products are also fungal acne (malassezia) safe and reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
John Frieda Frizz Ease All-In-1 Serum
53% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both vegan hair serums that contain. They've got a total of 3 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also reef safe.
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
Pretty Skin Argan Hair Serum
52% match
with the ingredients and function of L'Oréal Professionnel Keratin Alpha Sleek Mirror Serum
Dupe Explained
These products are both hair serums that contain. They've got a total of 4 ingredients in common.
They both do not contain any harsh alcohols, parabens or sulfates. They both contain common allergens, fragrances and silicones.
They're both likely to be good for scar healing.
Both products are also reef safe.
Price Comparison
Learn more about this dupe
Looking for a full breakdown of the similarities and differences between these two products?
Check out our full comparison of these two products for all the details!
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