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Summary
Highlights
Experience frizz-free locks with Biolage Smooth Proof Conditioner. Infused with camellia oil and glycerin, it nourishes and smooths hair, providing humidity defense and static control.
Benefits
- Smooths and nourishes naturally-prone frizzy hair
- Instantly detangles and leaves hair more manageable
- Provides hydration without weighing hair down
- Infused with anti-frizz concentrate of camellia oil and glycerin
- Tames frizz and provides the perfect amount of nourishment and smoothness
- Tube made with 73% recycled plastic
Key Ingredients
- Camellia Oil: A nourishing emollient that acts as a protective layer against environmental aggressors, like humidity, to eliminate frizz
- Glycerin: A natural humectant that draws moisture to the hair to reduce dehydration and frizz
Research Results
- Defrizzes hair while providing static control
- Defends against humidity
- Humidity control
- Anti-frizz smoothness
- Manageable hair
- Packaging may vary
Item 2121348
Experience frizz-free, perfectly smooth hair with just a 1-3 minute leave-in treatment. Use after Smooth Proof Shampoo for static control and humidity defense.
Aqua / Water / Eau, Cetearyl Alcohol, Elaeis Guineensis Oil / Palm Oil, Behentrimonium Chloride, Glycerin, Phenoxyethanol, Isopropyl Alcohol, Stearamidopropyl Dimethylamine, Parfum / Fragrance, Camellia Oleifera Seed Oil, Citric Acid, Chlorhexidine Dihydrochloride, Limonene, Tocopherol
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Questions
Ask a QuestionQ&A
Showing 20 out of 17 Questions
- Q
If this product draws moisture to the hair, how is that combating frizz? Being out in humidity causes frizz.
- Asked by SB
- Official Answer By Matrix - Brand EngageHi there! Thank you for reaching out about Biolage Smooth Proof Conditioner! This is infused with antifrizz concentrate of camellia oil and glycerin. Camellia oil is a nourishing emollient that acts as a protective layer against environmental aggressors, like humidity, to eliminate frizz. Glycerin is a natural humectant that draws moisture to the hair to reduce dehydration. We hope this helps!Was this answer helpful to you
- Q
I have very fine, dry hair, which products would be best?
- Asked by Mary
- Official Answer By Biolage - Brand EngageHi there, thank you for asking your question. We recommend using Biolage Volume Bloom. We hope you give it a try.Was this answer helpful to you
- Q
How does smooth proof conditioner compare to the biology 3 butter condition that has been discontinued???
- Asked by Barb
- Official Answer By Biolage - Brand EngageHi there! We appreciate your interest in Biolage Smooth Proof Conditioner. This conditioner detangles, de-frizzes and defends against humidity to keep hair manageably smooth. We hope you find this information helpful!Was this answer helpful to you
- Q
Would this be heavy on thin wavy hair?
- Asked by Tiff
- Official Answer By Biolage - Brand EngageHi there, thank you for asking about Biolage Smooth Proof Conditioner. This conditioner might be too heavy for your hair type. We recommend using Volume Bloom. We hope this is helpful to you.Was this answer helpful to you
- Q
Is this good on 4C hair
- Asked by Gigi
- Official Answer By Matrix - Brand EngageHello Gigi, thanks for asking about Smooth Proof Conditioner. This product works on all hair types, including curly hair. We hope this helps!Was this answer helpful to you
- Q
I have fine straight colored hair and I have terrible issues with static. I use Ultra conditioning Biolage shampoo and conditioner which is great and makes my hair shiny but it does not help with static! Does this shampoo and conditioner really help with static?
- Asked by Jen
- Official Answer By Matrix - Brand EngageHi there! We appreciate your interest in our Biolage products. Based on the information provided we recommend triying our Smooth Proof Leave-in Cream. Frizzy hair is prone to excess flyaways when exposed to static and humidity. Controls frizz and flyaways for smoother, more manageable hair. Static is controlled and hair is detangled with a hydrophobic shield. We hope you can give this a try and love it! https://tinyurl.com/yczqgr7aWas this answer helpful to you
- Q
I know it's does not say safe for color but is it ? I love it but just got my hair colored lol don't want to waste it if I can use it
- Asked by Newbeauty
- Official Answer By Biolage - Brand EngageHi thanks for reaching out! No worries, all Biolage products are safe for use on color-treated hair!Was this answer helpful to you
- Q
Is Biolage Smooth Proof shampoo and conditioner available at Ulta?
- Asked by Mi
- Official Answer By Matrix - Brand EngageHello Mi, Yes, Smooth Proof Shampoo and Smooth Proof Conditioner are available for purchase at Ulta.com. We hope this helps!Was this answer helpful to you
- Q
Is this good for low porosity hair?
- Asked by Samantha
- Official Answer By Matrix - Brand EngageHello! Biolage SmoothProof Conditioner you can control your hair. This anti-frizz conditioner is the salon hair treatment solution for managing wavy, curly and frizzy hair in humid weather. Was this answer helpful to you
- Q
what is a good shampoo and conditioner for my hair that is blonde highlighted with bleach now it is dry but not damaged I have used Joico moister rich and it makes my hair dryer and flat thank you..I need my hair soft and silky and shine!! Sherri
- Asked by sherri
- Official Answer By Matrix - Brand EngageBiolage Hydrasource Shampoo and Conditioner. Was this answer helpful to you
- Q
What is the scent?
- Asked by Dark
- Official Answer By Matrix - Brand EngageFragrance is very subjective. i feel it has a light soft scent . Smoothproof is inspired by the camelia flower. Was this answer helpful to you
- Q
Will this make my hair greasy since it adds so much moisture? I have frizzy hair, but I also have quite oily hair.
- Asked by Marisa
- Official Answer By Matrix - Brand EngageBiolage Smoothpfoof Conditioner is an anti-frizz conditioner for managing wavy, curly and frizzy hair in humid weather. It is formulated to lock out moisture for control and smoothnessWas this answer helpful to you
- Q
Does this conditioner make your hair greasy? I have naturally oily hair and just started using the biolage normalizing shampoo but don't know what conditioner to pair with it. The mint one smelt like a wierd mint.
- Asked by Sam
- Verified Reply - Brand ExpertBiolage Smoothproof Conditioner for frizzy hair provides humidity control and anti-frizz smoothness. If your hair is fine and or thin, it may appear to be too flat. It is formulated to keep the hair smooth and control unwanted volume. You may wish to consult with your stylist for a hair care regimen that will suit your hair concerns.Was this answer helpful to you
- Q
Hi! What is the difference between Biolage Smoothproof Shampo/Conditioner v/s Matrix Total Results Mega Sleek Shampoo/Conditioner? I'm AA with natural hair and total results is my go to for when I straighten my hair. If Smoothproof is better I want to try it. Thanks!
- Asked by JBN
- Verified Reply - Brand ExpertTotal Results Mega Sleek Shampoo and Conditioner are excellent salon quality products. I can see why they are your "Go To" product when you want a smooth, sleek frizz free result. Matrix Biolage SmoothProof is slightly higher end. SmoothProof was inspired by the Camellia Flower. SmoothProof promises perfectly smooth hair for up to 72 hours when using the Shampoo, Conditioner and Leave-In Serum. It will smooth, detangle and control frizz. You're going to be happy with either of these products.Was this answer helpful to you
- Q
would this be good for human hair extensions
- Asked by samdan
- Verified Reply - Brand ExpertUnfortunately, we do not test our products on human hair extensions. Although it is human hair, hair extensions typically go through a process during manufacturing. You may want to discuss the care of the human hair extensions with the manufacture of that product. .Was this answer helpful to you
- Q
What is the scent?
- Asked by Dark
- Official Answer By Matrix - Brand EngageFragrance is very subjective. i feel it has a light soft scent . Smoothproof is inspired by the camelia flower. Was this answer helpful to you
- Q
Will this make my hair greasy since it adds so much moisture? I have frizzy hair, but I also have quite oily hair.
- Asked by Marisa
- Official Answer By Matrix - Brand EngageBiolage Smoothpfoof Conditioner is an anti-frizz conditioner for managing wavy, curly and frizzy hair in humid weather. It is formulated to lock out moisture for control and smoothnessWas this answer helpful to you
- Q
Does this conditioner make your hair greasy? I have naturally oily hair and just started using the biolage normalizing shampoo but don't know what conditioner to pair with it. The mint one smelt like a wierd mint.
- Asked by Sam
- Verified Reply - Brand ExpertBiolage Smoothproof Conditioner for frizzy hair provides humidity control and anti-frizz smoothness. If your hair is fine and or thin, it may appear to be too flat. It is formulated to keep the hair smooth and control unwanted volume. You may wish to consult with your stylist for a hair care regimen that will suit your hair concerns.Was this answer helpful to you
- Q
Hi! What is the difference between Biolage Smoothproof Shampo/Conditioner v/s Matrix Total Results Mega Sleek Shampoo/Conditioner? I'm AA with natural hair and total results is my go to for when I straighten my hair. If Smoothproof is better I want to try it. Thanks!
- Asked by JBN
- Verified Reply - Brand ExpertTotal Results Mega Sleek Shampoo and Conditioner are excellent salon quality products. I can see why they are your "Go To" product when you want a smooth, sleek frizz free result. Matrix Biolage SmoothProof is slightly higher end. SmoothProof was inspired by the Camellia Flower. SmoothProof promises perfectly smooth hair for up to 72 hours when using the Shampoo, Conditioner and Leave-In Serum. It will smooth, detangle and control frizz. You're going to be happy with either of these products.Was this answer helpful to you
- Q
would this be good for human hair extensions
- Asked by samdan
- Verified Reply - Brand ExpertUnfortunately, we do not test our products on human hair extensions. Although it is human hair, hair extensions typically go through a process during manufacturing. You may want to discuss the care of the human hair extensions with the manufacture of that product. .Was this answer helpful to you
Reviews
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Ratings Distribution
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Hair Type
Most Helpful Positive Review
Best EVER
I have used biolage off and on for years. The salon I went to used a different product so I switched. My hair became hard to manage, dry and dull. I recently went back to biolage and used the smoothproof for the first time. I could not be happier with my decision. My hair is soft, smooth and shiny a...
Most Helpful Critical Review
Not good for natural curls
I have naturally curly, and fine hair. This shampoo and conditioner did not smooth the frizz at all. It made my hair poofy and dry. Also, this shampoo and conditioner set does not have a great smell at all. I used the line with the Smooth proof anti-frizz creme and the curl gel. Results were disapp...
909 results
Where has this product been my whole life?
Hair Type Very Curly Hair
After years and I mean years—of fighting frizz, dryness, and the chaos that is my unruly Type 3 curls, I finally found the one. Biolage Smooth Proof has been a total game-changer for me. It took a couple of weeks to really see the difference, so be patient if you've got textured hair like mine—but when I tell you my curls are now soft, nourished, and actually manageable, I mean it. I spent years bleaching my hair into oblivion and this combo still came through. It's the only thing in the last 10 years that's actually worked for me—and I'm never looking back.

Worth the price.
Hair Type Wavy Hair
Always my favorite hair product. It's worth the money I pay. Wonderful product always. I recommend smooth proof for my hair type. Very smooth outcome. Highly satisfied customer.

New bottles have less product
This is a good conditioner. New bottles have less product for same price though. I will not purchase again.
This conditioner is good but is expensive
Hair Type Straight Hair
I use it when my hair gets wavy, tangled or dry.
Horrible
With this price point, i thought for sure it would at least be decent. Almost the worst conditioner ove ever used. I brish my hair while conditioner is still in it wbcause my hair is super thick and curly. Its the only way i can manage. My hair rips right out with this. It doesnt smooth. It doesnt detangle. Dont waste your money.