What are the main benefits of Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner?

There are many benefits when using this system: instantly strong hair, infinitely defined curls, 7-day hydration, reduced breakage, protected length, 50% less frizz (even in high humidity), and instantly easier detangling and static control.

What is the difference between this new Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner and the original Nº.4 Bond Maintenance Shampoo and Nº.5 Bond Maintenance Conditioner?

Our Curl System uses Patented 3D Bond Shaper™ Technology and Hydra-Define Technology™ to strengthen, define, and hydrate coils and curls. In contrast, Nº.4 Shampoo and Nº.5 Conditioner use patented Bis-Amino technology to strengthen and nourish all hair types, particularly medium to coarse strands.

Will Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner minimize frizz?

Yes, Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner will help minimize frizz by 50% in one use.

How can I tell which OLAPLEX Shampoo & Conditioner is right for me?

Choose Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner for strength, definition, and extra hydration, Nº.4 Shampoo and Nº.5 Conditioner for strengthening medium/coarse hair, Nº.4FINE Shampoo and Nº.5FINE Conditioner for volume, Nº.4C Clarifying Shampoo for buildup, and Nº.4P Shampoo and Nº.5P Conditioner for toning blondes.

How often should I use Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner? Is it ok to use every wash day?

Yes, you can absolutely use the Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner every wash day.

Does Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner contain silicones and sulfates? Are they color safe?

Our Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo does not contain silicones or sulfates. Our Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner does not contain silicones, but does contain safe conditioning sulfates. Both the shampoo and conditioner are color-safe.

Does Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner contain protein?

No, the Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner do not contain protein.

What are the clinical results of Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner?

When using as a system: • Instantly strong hair and less breakage in one use • Infinitely defined curls • 7 days of hydrated curls instantly • 50% less frizz, even in high humidity • 96% agree hair was easier to detangle

Does Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner help with curl retention and maintaining curl shape?

Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner use Patented 3D Bond Shaper™ Technology to strengthen hair’s internal structure, enhancing natural curl shape and bounce. While it cannot create curls where they don't exist, it helps natural patterns spring back more easily.

How does repairing the internal hair structure help bring out the best in my natural curls and coils?

It allows your natural coils, curls, and waves to show up as they were meant to: in more defined, uniform curl groupings.

What is the best way to achieve curl definition using OLAPLEX?

Cleanse and condition with the Curl System in the shower, then layer with OLAPLEX treatments and stylers for a perfect, defined finish.

What other OLAPLEX products should I use with Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner?

Depending on your hair needs, our pros recommend: Nº.5Leave-In for hydration and split ends, Nº.9 Nourishing Hair Serum for style retention, Nº.10 Bond Shaper™ Gel for definition and hold, and Olaplex Nº.7 Bonding Oil for shine and frizz control.

Can I mix and match Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner with other shampoos and conditioners?

Yes, you can absolutely use the Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner in conjunction with your other favorite products.

Is it "curly girl method" friendly?

Yes, these products are curly girl friendly as they are formulated without silicone and SLS/SLES. This system is also incredibly hydrating.

Do Nº.4 Hydrating Curl Shampoo and Nº.5 Hydrating Curl Conditioner contain fragrance? What is the scent profile?

Yes, it contains our signature scent with a heightened mint profile.

Can I still use it if I have a combination of textures in my hair?

Absolutely. Nº.4Curl Bond Shaper™ Hydrating Curl Shampoo and Nº.5Curl Bond Shaper™ Hydrating Curl Conditioner are formulated for a range of patterns across the coily, curly, and wavy spectrum.

Can I use it to wash my braids? What about with protective styles?

Yes, you can absolutely use these to wash your braids and/or protective styles.

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25% OFF IN CART

Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO LITRE

Name: Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO LITRE
Brand: OLAPLEX
SKU: 20251027
Price: 27.0 AUD
Availability: InStock

$180 ($216 Value)

Taxes included.

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Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO LITRE

BEFORE
AFTER
Information
Name
12ba03iyanan4
Alt text
UNRETOUCHED IMAGES
*Results may vary. Results achieved by cleansing with N°4CURL Shampoo, conditioning with N°CURL Conditioner, then drying with a diffuser.

Close-up of a model with curly hair and OLAPLEX Nº.4CURL clinical claims. Text: 1 Wash. No Compromises. Clinically Proven: Stronger hair/less breakage in 1 use; defined curl pattern in 1 use; 7 days of hydration; 50% less frizz in high humidity; 96% agree hair was easier to detangle. Results based on use as a system and 2-week study.

Four women with diverse curly and coiled hair textures posing together. Text reads: INSTANTLY STRONG, INFINITELY DEFINED, 7-DAY HYDRATED CURLS. A footnote at the bottom adds: When Nº. 4CURL and Nº. 5CURL are used as a system.

Comparison chart for OLAPLEX shampoo and conditioner formulas. It compares Nº.4FINE & Nº.5FINE (for fine to medium hair), Nº.4 & Nº.5 (for medium to coarse hair), and Nº.4CURL & Nº.5CURL (for coils, curls, and waves). The Nº.4CURL line is highlighted for defining and hydrating, with the highest hydration level of 5 out of 5 dots.

Infographic titled 'The Curl Transformation Routine' showing three steps with products. Step 1: Repair and Soften using No.3Plus Complete Repair Treatment. Step 2: Strengthen and Define using No.4CURL Bond Shaper Hydrating Curl Shampoo. Step 3: Hydrate and Smooth using No.5CURL Bond Shaper Hydrating Curl Conditioner. The bottles are shown resting in soapy bubbles.

Graphic titled 'Patented 3D Bond Shaper™ Technology.' Text explains that it builds disulfide bonds from 6 points in multiple directions to repair, rebuild, and define coils, curls, and waves from cortex to cuticle. A 3D illustration shows a hair strand being repaired by molecules.

A model with long, curly hair washing with Nº.4CURL BOND SHAPER™ shampoo to show a rich lather. Text highlights: A Cooling Cleanse with a silky, creme-gel texture that creates a hydrating, non-stripping lather with high-slip; and a refreshing mint scent that invigorates.

OLAPLEX formulation standards on a red background. Text: Trichologist Approved. Stylist & Dermatologist Tested. Formulated Without: Protein, Silicones, SLS/SLES, Phthalates, Phosphates, MIC/MIT, and Paraben. Always: Trichologist Approved, Dermatologist Tested, Tested on Coils and Curls, Color Safe, and Suitable for Chemically Treated Hair. A swirl of white, creamy product texture is shown at the bottom.

OLAPLEX Nº.4CURL Shampoo and Nº.5CURL Conditioner in a water splash. Text highlights the routine as the No-Compromise Curl Routine for strengthening, defining, hydrating, and smoothing curls.

Scientific comparison titled 'Instant & Lasting Results For Coily Hair' showing three microscope images of a coily hair cuticle. 'Before' shows a lifted, damaged cuticle. 'After 1 Wash' shows a smoothed cuticle that locks in hydration. '7 Days After 1 Wash' shows the cuticle remains smooth for lasting hydration

BEFORE
AFTER
UNRETOUCHED IMAGES*
*Results may vary. Results achieved by treating hair with N° 3PLUS, cleansing with N°4CURL Shampoo, conditioning with N°5CURL Conditioner then drying with a diffuser.

BEFORE
AFTER
Information
Name
14ba01kennedin4
Alt text
UNRETOUCHED IMAGES
*Results may vary. Results achieved by treating hair with N° 3PLUS, cleansing with N°4CURL Shampoo, conditioning with N°5CURL Conditioner, then drying with a diffuser.

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Olaplex Nº.4CURL Bond Shaper Hydrating Curl Shampoo texture shot.

Clear gel like goop on a gray background

25% OFF IN CART

A multi-action shampoo for stronger, defined, and more hydrated coils, curls, and waves in one use.

Size:

Travel Size (100ml)

Full Size (250ml)

LITRE (1000ml)

25% Off Applied in Cart

Final price shown at checkout.

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Key Benefits

Instantly Strong
Infinitely Defined
7-Day Hydration
Reduces breakage and protects length
Cuts frizz in half, even in high humidity
Instantly easier detangling and static control
Trichologist Approved. Stylist & Dermatologist Tested. Vegan. Color-safe and suitable for chemically treated hair. Tested on coils and curls.

Apply to wet hair.
Lather.
Rinse.
Follow with N°.5CURL BOND SHAPER™ HYDRATING CURL CONDITIONER or OLAPLEX mask of choice.

Avoid contact with eyes.

Patented 3D Bond Shaper™ Technology Builds disulfide bonds from 6 points in multiple directions to repair, strengthen, and define coils and curls.

Hydra-Define Technology™ Positively charged hyaluronic acid complex neutralizes points of damage, sealing the cuticle to lock in smoothing hydration and block frizz-forming humidity.

Natural Oil Blend Nourishing Avocado and Sunflower oils impart moisture, softness, and definition.

Olaplex Signature Scent, Reimagined
Revitalize your senses with elevated notes of crisp and invigorating Sugared Mint, complemented by a bright burst of Grapefruit Zest Ginger, and a sophisticated, grounding base of Crushed Sage.

No protein overload. No silicone buildup. Free of Protein, Silicones, Sulfates, SLS/SLES, Phthalates, Phosphates, MIC/MIT, and Parabens.

Aqua (Water, Eau), Sodium Cocoyl Isethionate, Cocamidopropyl Betaine, Sodium C14-16 Olefin Sulfonate, Cocamidopropylamine Oxide, Decyl Glucoside, Acrylates Copolymer, sh-Oligopeptide-281 SP, Carthamus Tinctorius (Safflower) Oleosomes, Panthenol, Polyquaternium-11, Polyquaternium-7, Salvia Hispanica Seed Extract, Ilex Paraguariensis Leaf Extract, Crambe Abyssinica Seed Oil, Linum Usitatissimum (Linseed) Seed Extract, Hydroxypropyltrimonium Hyaluronate, Helianthus Annuus (Sunflower) Seed Oil, Persea Gratissima (Avocado) Oil, Helianthus Annuus (Sunflower) Seed Wax, Menthyl Lactate, Jojoba Esters, Tocopherol, Pentylene Glycol, Acacia Senegal Gum, Menthol, Glycerin, Glycol Distearate, Polyester-37, Propanediol, Caprylyl Glycol, Ethyl Linoleate, Ethyl Oleate, Caprylic Acid, Xylitol, Lactic Acid, Hydroxypropyl Bis-Hydroxyethyldimonium Chloride, Guar Hydroxypropyltrimonium Chloride, Acrylamidopropyltrimonium Chloride/Acrylamide Copolymer, Sorbitan Oleate Decylglucoside Crosspolymer, Hydroxypropylcellulose, Ethylhexylglycerin, Polyglycerin-3, Propylene Glycol, Phenethyl Alcohol, Pentaerythrityl Tetra-Di-t-Butyl Hydroxyhydrocinnamate, Gluconolactone, Sodium Metabisulfite, Trisodium Ethylenediamine Disuccinate, Parfum (Fragrance), Phenoxyethanol, Chlorphenesin, Sodium Chloride, Citric Acid, Sodium Benzoate, Benzyl Alcohol, Potassium Sorbate, Sodium Hydroxide, Citral, Citrus Aurantium Peel Oil, Hexyl Cinnamal, Limonene.

Ingredients are subject to change. For the most current ingredient list, please consult the product packaging of the item you received.

50%

less frizz, even in high humidity*

96%

agree hair was easier to detangle**

days of hydrated curls instantly*

Results With One Use

UNRETOUCHED IMAGES*

Your Best Curls, Bottled

You just found Kyla's secret to 7-day hydrated curls—shop new one-of-a-kind curl technology for instantly strong, infinitely defined curls, coils, and waves.
A non-stripping, hydrating cleanse and high-slip conditioner to melt away tangles, locking in a weightless bounce for 7 days.

Shop The Look

Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO FULL SIZE

Regular price $54
Nº.5CURL BOND SHAPER™ HYDRATING CURL CONDITIONER FULL SIZE

Regular price $54

Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO FULL SIZE

Regular price $54
Nº.5CURL BOND SHAPER™ HYDRATING CURL CONDITIONER FULL SIZE

Regular price $54

Shop The Look

Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO FULL SIZE

Regular price $54
Nº.5CURL BOND SHAPER™ HYDRATING CURL CONDITIONER FULL SIZE

Regular price $54

Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO FULL SIZE

Regular price $54
Nº.5CURL BOND SHAPER™ HYDRATING CURL CONDITIONER FULL SIZE

Regular price $54

1 Wash. No Compromises.

CLINICALLY PROVEN

7 Days
Of Hydrated
Curls Instantly
*When Nº.4CURL BOND SHAPER™ HYDRATING CURL SHAMPOO & Nº.5CURL BOND SHAPER™ HYDRATING CURL CONDITIONER are used as a system

50%
Less Frizz, Even
In High Humidity*
**Tested on bleached curly hair for damage reduction.

96%
Agree Hair Was
Easier To Detangle**