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Summary
Conscious Beauty at Ulta Beauty™
- Cruelty Free
- Sustainable Packaging Brand
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
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
Free gift with purchase
Free gift with purchase
Online only free surprise sample pack with select purchase. Totally Free, Totally Fun! One per customer (valid thru 6/13/25 on shipped purchases only. Full or partial pickup or same day delivery purchases do not qualify. While quantities last)
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Questions
Ask a QuestionQ&A
Showing 5 out of 16 Questions
- 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
Reviews
Write A REVIEWReview Snapshot
by PowerReviews
Ratings Distribution
My Beauty Routine Takes
- 630 Minutes
- 51+ Hour
- 110 Minutes
Best Uses
- 47Dry Hair
- 46Daily Use
- 33Curly Hair
- 31Thick Hair
- 27Deep Conditioning
Describe Yourself
- 42Beauty Conscious
- 21Survivalist / Minimalist
- 14Product Junkie
- 7Brand Buyer
- 6Budget Shopper
Hair Type
- 59Wavy Hair
- 20Straight Hair
- 19Very Curly Hair
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.