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Highlights
Summary
A multi-action shampoo for stronger, defined, and more hydrated coils, curls, and waves in one use.
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
- *When N°.4CURL & * N°.5CURL are used as a system
Key Ingredients
- 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.
- No protein overload. No silicone buildup. Free of Protein, Silicones, Sulfates, SLS/SLES, Phthalates, Phosphates, MIC/MIT, and Parabens
- 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.
Research Results
- 50% less frizz, even in high humidity*
- 96% agree hair was easier to detangle**
- *When N°.4CURL & * N°.5CURL are used as a system
- **Based on a 2-week 75-person consumer study.
Item 2655264
After shampooing with N°.4CURL BOND SHAPER™ CURL HYDRATING SHAMPOO, apply generously to mid-lengths and ends. Leave on for 1-3 minutes. Rinse. Avoid contact with eyes.
Aqua, Sodium Cocoyl Isethionate, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Decyl Glucoside, Cocamidopropylamine Oxide, Parfum, Acrylates Copolymer, Phenoxyethanol, Coconut Acid, Hydroxypropyl Bis-Hydroxyethyldimonium Chloride, Panthenol, Polyester-37, Glycol Distearate, Polyquaternium-11, Polyquaternium-7, Chlorphenesin, Isostearamide MIPA, Guar Hydroxypropyltrimonium Chloride, Acrylamidopropyltrimonium Chloride/Acrylamide Copolymer, Sodium Isethionate, Trisodium Ethylenediamine Disuccinate, Ethylhexylglycerin, Menthol, Menthyl Lactate, Linum Usitatissimum Seed Powder, Carthamus Tinctorius Oleosomes, Glyceryl Laurate, Salvia Hispanica Herb Extract, Glycerin, Acacia Senegal Gum, Hexyl Cinnamal, Limonene, Menthol, Citral, Sodium Hydroxide, Stearic Acid, Sodium Benzoate, Propanediol, Tetramethyl Acetyloctahydronaphthalenes, Linalool, Mentha Piperita Oil, Citronellol, Jojoba Esters, Carvone, Linalyl Acetate, Pentylene Glycol, Benzyl Alcohol, Mentha Viridis Leaf Oil, Ethyl Linoleate, Ethyl Oleate, Helianthus Annuus Seed Wax, Geranyl Acetate, Benzyl Alcohol, Eucalyptus Globulus Oil, Lactic Acid, Caprylyl Caprylate, Xylitol, Caprylic Acid, Olus Oil, Hydroxypropyltrimonium Hyaluronate, Potassium Sorbate, Camphor, Benzyl Benzoate, Beta-Caryophyllene, Geraniol, Pinene, Sodium Metabisulfite, Helianthus Annuus Extract, Persea Gratissima Oil, Rose Ketones, Anethole, Polyglycerin-3, Sorbitan Oleate Decylglucoside Crosspolymer, PB-300, Anise Alcohol, Terpineol, Alpha-Terpinene, Pentaerythrityl Tetra-Di-t-Butyl Hydroxyhydrocinnamate, Sodium Chloride, Propylene Glycol, Terpinolene, Hydroxypropylcellulose, Coumarin, Phenethyl Alcohol, Tocopherol, Benzaldehyde
This brand is excluded from most Ulta Beauty coupons.
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Questions
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Hair Type
Most Helpful Positive Review
Love it
honestly i was pretty skeptical about trying yet another high end curl shampoo because my hair usually just ends up feeling stripped or like a tangled mess but the olaplex n4 curl bond shaper is actually a game changer for real. i was lucky enough to have this gifted to me to try out and the first t...
Most Helpful Critical Review
Gentle cleansing but not hydrating for drier hair types
I have multi textured strands and multi curl patterned dry type 3 & 4 low porosity hair. True cleansing is imperative for any wash day to turn out good for me. Hydrating shampoos are my favorite to cycle through since clarifying all the time can mess up the moisture balance and ph of my hair at time...
288 results
Works great
Hair Type Very Curly Hair
As someone with 4c hair texture this actually worked well for me and made it easier for me to detangle my hair which is usually a nightmare when I'm washing my hair. Product was received as a part of an educational promotion
Definitely love this
Hair Type Very Curly Hair
As someone with 4c hair texture this actually worked well for me and made it easier for me to detangle my hair which is usually a nightmare when I'm washing my hair.
Curls felt so hydrated
Hair Type Very Curly Hair
I love the smell of this and how it thoroughly cleaned my scalp and my hair while leaving my hair still hydrated. I've only used it twice and I feel like this didn't leave my hair feeling dry or bridle. I definitely will continue to use this on wash days.
Game changer for color-treated wavy hair!
Hair Type Wavy Hair
I've been on the hunt for a shampoo that actually works for my color-treated wavy hair without stripping it, and this is IT. The Olaplex Nº.4Curl Bond Shaper Hydrating Curl Shampoo gently cleanses without robbing my hair of moisture and my waves come out feeling soft, bouncy, and beautifully defined right from the wash. I love that it's color-safe because my color stays vibrant and fresh so much longer now. In the summer I just let my hair air dry and my waves look amazing with zero extra effort. Frizz is practically gone even on the most humid days. If you have color-treated wavy hair that needs some serious love, this is non-negotiable. Will never go back!
Olaplex stays in my routine!
Hair Type Very Curly Hair
This product was given in exchange for an honest review This OLAPLEX line had been in my vanity for years. Now that there's a curly line, I feel like I'm in heaven. The shampoo cleansed my scalp thoroughly without stripping my curls or leaving them dry and tangled. My hair felt noticeably softer, stronger, and less frizzy. I also experienced less shedding and better curl definition overall. The formula feels luxurious, and a little goes a long way. I would absolutely recommend to a friend, I think it's worth it for damaged, color-treated, or heat-styled curls needing extra repair and strength.

