Olaplex No.4 Curl Bond Shaper Hydrating Curl Shampoo bottle on a white background
Three Olaplex hair care products on a white background with bubbles.
Olaplex shampoo bottle with a gray label with light-beige product behind it on a white background

Olaplex

No 4 Curl

Hydrating Curl Shampoo
8.5 fl oz / 250 ml
$ 34.00
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Pickup available at Paul Labrecque Salon & Skincare Spa New York Usually ready in 4 hours

No 4 Curl

Paul Labrecque Salon & Skincare Spa New York

Pickup available, usually ready in 4 hours

5 East 57th Street
Floor 9
New York NY 10022
United States

+12129887816

Paul Labrecque Salon & Skincare Spa Palm Beach

Pickup available, usually ready in 4 hours

The Royal Poinciana Plaza, 50 Cocoanut Row
The Slat House, Suite 120
Palm Beach FL 33480
United States

+15614028207

No 4 Hydrating Curl Shampoo for coily, curly, and wavy hair delivers multi-action care to instantly strengthen, hydrate and target your hair’s unique combination of needs, no matter your pattern. Powered by Olaplex's patented 3D Bond Shaper™ and Hydra-Define™ technology, it helps reinforce weakened areas while supporting softer, smoother, more defined curls.

Use No 4 Hydrating Curl Shampoo with No 5 Hydrating Curl Conditioner for 50% less frizz—even in high humidity—and easier detangling for softer, more manageable curls. No 4 Hydrating Curl Shampoo's silky, creme-gel formula provides essential slip to prevent tangles. It removes buildup without stripping for light, clean hair between wash days for 7-day hydrated curls.

No 4 Hydrating Curl Shampoo's scent is a re-imagined take on Olaplex's signature, opening with crisp, invigorating notes of Sugared Mint, followed by a bright burst of Grapefruit Zest, Ginger, and a grounding base of Crushed Sage. 

The silicone-free, protein-free formula is Trichologist Approved, Stylist and Dermatologist Tested, vegan, color-safe, and suitable for chemically treated hair. Free of SLS/SLES, parabens, phthalates, phosphates, and MIC/MIT.

  • Instantly strengthens, reducing breakage and protecting length
  • Promotes long-lasting definition
  • 7-day hydration
  • Reduces frizz by 50% even in high humidity when used with No 5 Curl Conditioner
  • Easier detangling and static control after use
  • Dermatologist tested, vegan, color-safe, and suitable for chemically treated hair
  • Free of Protein, Silicones, Sulfates, SLS/SLES,  Phthalates, Phosphates, MIC/MIT, and Parabens

1. Apply a small amount to wet hair.
2. Lather and rinse.
3. Follow with Olaplex No 5 Curl Conditioner or Olaplex mask of choice.

Q: How often should I use No 4 Hydrating Curl Shampoo? Is it ok to use every wash day?
A: You can use this product every wash day if you'd like!

Q: What is the best way to achieve curl definition using Olaplex?
A: Cleanse and condition with the Curl System in the shower, then layer with Olaplex treatments and stylers for a perfect, defined finish.

Q: Can I mix and match No 4 Hydrating Curl Shampoo with my other products?
A: While designed to work with the No 5 Hydrating Curl Conditioner, you can absolutely use it with any other products you prefer.

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