Biolage Smooth Proof Conditioner – Nourishes & Smooths Frizzy Hair, Detangles & Manages

From the manufacturer

Anti-Frizz Concentrate CAMELLIA OIL​

Camellia oil is a nourishing emollient that acts as a protective layer against environmental aggressors, like humidity, to eliminate frizz. ​

GLYCERIN​​

Glycerin is a natural humectant that draws moisture to the hair to reduce dehydration ​​and frizz.

80% LESS FRIZZ FOR UP TO 24 HOURS.*

Instantly control frizz-prone hair with the combination of hydration and defense against environmental aggressors prone to causing frizz, like humidity. Hair is easier to detangle, smoother, softer and more manageable. ​

​

*Smooth Proof Serum vs. non-conditioning shampoo​

Shampoo

Nourishes and controls frizzy hair, instantly softening and detangling for sleek, shiny hair.

Conditioner

Perfectly smooths hair, controls frizz & static, defends against humidity.

Leave-In Cream

Controls frizz, detangles, and adds shine for smooth, manageable hair.

Serum

Hydrates, heals, and enhances shine of brittle, frizzy hair while protecting against heat styling and humidity.

Why does the bottle look different from before?

We updated the packaging in 2025 to a sleeker, more sustainable bottle – 100% recycled bottle and cap! However, the formula and performance remain the same.

Which hair type is Smooth Proof best for?

Smooth Proof is best for medium to thick hair prone to frizz.

What are the key ingredients in Smooth Proof?

Camellia Oil & Glycerin instantly control frizz-prone hair with the combination of hydration and defense against environmental aggressors prone to causing frizz, like humidity.

Is Smooth Proof color-safe?

Yes, Smooth Proof is suitable for color-treated hair.

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Customer Reviews

4.7 out of 5 stars 19,343

4.7 out of 5 stars 40,639

4.7 out of 5 stars 23,937

4.6 out of 5 stars 89

4.6 out of 5 stars 3,153

4.6 out of 5 stars 9,732

4.5 out of 5 stars 785

Price

$26.00$26.00

$26.00$26.00

$26.00$26.00

$26.00$26.00

$26.00$26.00

$26.00$26.00

$30.00$30.00

Hair Concern

Dry Hair

Color Treated Hair

Very dry, thick, coarse hair

Fine hair lacking volume

Damaged hair

Dandruff and scalp debris

Thin Hair, Hair Fall

Benefit

Optimize moisture balance

Maintain color-treated hair

Intense moisture for dry hair

Add lightweight volume

Repair & help reduce breakage

Deep cleansing

Creates fullness

Key Ingredient

Aloe

Orchid

Cupuacu Butter

Cellulose & Peptides

Vegan Squalane

Mint & Pyrithione Zinc

Rosemary Oil and Niacinamide

Formula

Paraben-Free, Vegan

Sulfate- Free, Paraben-Free

Paraben-Free, Vegan

Paraben-Free, Silicone-Free

Paraben-Free, Silicone-Free

Paraben-Free, Vegan

Vegan, Cruelty-Free

Fragrance

Fresh, Floral

Lavender

Orange, Bergamot

Cotton Flower

Floral

Mint

Floral

Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 3.15 x 3.15 x 10.16 inches; 4.74 Pounds
Item model number ‏ : ‎ 884486151896
UPC ‏ : ‎ 884486151896
Manufacturer ‏ : ‎ L’Oreal Professionnel
ASIN ‏ : ‎ B00IRDDH34
Best Sellers Rank: #11,869 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #281 in Hair Conditioner
Customer Reviews: 4.6 4.6 out of 5 stars (2,333) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Smooth Proof Conditioner: Nourishing conditioner that instantly detangles unruly, frizzy hair for smooth, manageable hair
Benefits: This conditioner is infused and micro-dosed with camellia oil and glycerin to fight frizz and dryness without weighing hair down
Additional Benefits: Leaves hair feeling soft and smooth with a radiant shine
Suggested Use: Apply to wet hair and leave in 1-3 minutes. Rinse thoroughly
Biolage Smooth Proof: For all your smoothing hair care needs, turn to Biolage Smooth Proof. This collection is specially formulated to control frizz and leave your hair feeling silky smooth.