Olaplex No. 4 Curl Hydrating Shampoo (starting at $35 USD)

OLAPLEX Nº.4CURL Bond Shaper™ Hydrating Curl Shampoo

Strengthen. Define. Hydrate. 🌀✨

A multi-action shampoo specifically formulated for waves, curls, and coils. Nº.4CURL Bond Shaper™ Hydrating Curl Shampoo delivers a refreshing, non-stripping cleanse while helping strengthen the internal structure of the hair, enhance natural curl definition, and lock in hydration.

Powered by patented 3D Bond Shaper™ Technology and Hydra-Define Technology™, the silky cream-gel formula helps reinforce the bonds that give curls their natural shape while sealing the cuticle to retain moisture and help block humidity-driven frizz.

 You’ll Love It:

• 🌀 Helps define natural curls, coils, and waves
• 💪 Strengthens hair and helps reduce breakage
• 💧 Provides up to 7 days of hydration*
• ✨ Helps enhance curl shape, bounce, and shine
• 🤍 Helps reduce frizz—even in high humidity
• 🫧 Provides slip to help minimize tangling during cleansing
• ⚡ Helps control static
• 🌿 Suitable for all curl patterns and porosity levels
• 🎨 Color-safe and suitable for chemically treated hair
• 🌱 Vegan and dermatologist tested
• 🚫 Free of protein, silicones, sulfates, SLS/SLES, parabens, phthalates, and phosphates

How to Use:
Apply to wet hair and gently massage into the scalp and lengths to create a rich lather. Rinse thoroughly and follow with OLAPLEX Nº.5CURL Bond Shaper™ Hydrating Curl Conditioner or your favorite OLAPLEX mask. Suitable for every wash day. (OLAPLEX Inc.)

Pro Tip: For the ultimate curl-focused routine, pair Nº.4CURL with Nº.5CURL Bond Shaper™ Hydrating Curl Conditioner. Together, the system is designed to leave curls stronger, more defined, smoother, and hydrated for days.

Best For: Waves, curls, and coils of all porosity levels that need hydration, strength, definition, and frizz control.

*7-day hydration, frizz, and other clinical results are based on use of Nº.4CURL and Nº.5CURL as a system; results may vary.