Bottle of Olaplex No. 4C Clarifying Shampoo in foamy, light blue water, a must-have for healthy hair from Erin Reye Hair.

Image comparing Olaplex No.4C Clarifying Shampoo for at-home use against the pro-only Olaplex Broad Spectrum Chelating Treatment, explaining the difference between surface-level clarifying and deep chelating.

Nº.4C BOND MAINTENANCE® CLARIFYING SHAMPOO

Name: Olaplex Nº.4C Powerful Clarifying Shampoo | Erin Reye Hair
Brand: OLAPLEX
SKU: 4C
Price: 32.00 USD
Availability: InStock
Rating: 5.00 (1 reviews)

$32.00

Ready to hit the reset button on your hair? ✨ This science-backed clarifying shampoo is my secret weapon for giving your hair a deep, refreshing clean. It gently removes dulling buildup from products and hard water without stripping essential moisture, leaving your hair vibrant, soft, and so much more manageable. Don’t forget to pair it with a rich mask like the No.8 Bond Intense Moisture Mask

In stock (can be backordered)

Categories: Cleansers, Scalp Therapy, Take HomeTags: blonde hair, clarifying, coarse hair, curly hair, dry hair, fine hair, hard water, shampoo

🧪 How To Use
don't overthink it, but this could help
Ready for that brand-new hair feeling? 👇

Start by applying it to wet hair once a week, instead of your regular shampoo. Really focus on your scalp and work it all the way through to the ends. Get a good lather going and let it sit for up to 5 minutes so it has time to work its magic! 🪄 Then, rinse it all out. My biggest pro-tip is to always follow up with the Nº.5 Bond Maintenance® Conditioner or the Nº.8 Bond Intense Moisture Mask to lock in that repair and hydration. 💧
✨ Fun Factz
omg love these for us
The Science Behind the Clean
Here’s a little hair science for you 🤓 Ever notice how hard water can make your hair feel dull, filmy, or even change your color? That’s because minerals in the water form an ionic bond with your hair strands, and they do NOT want to let go. While a standard clarifying shampoo is great for removing surface buildup like product residue, to truly break that stubborn bond with minerals, you need a special ingredient called a chelator.

Chelation is a chemical process where ingredients in the shampoo actively hunt for, grab onto, and pull those minerals right off the hair fiber. That’s the secret power behind Nº.4C—it’s not just clarifying the surface; it’s a powerful chelating treatment that acts like a magnet 🧲 for hard water buildup. This is the real science behind what it takes to get your hair back to its purest, most vibrant state.
🌿 Ingredients
no greenwashing, just good clean shit
Broad-Spectrum Clarifying System Removes damaging product buildup, excess oil, hard water minerals, chlorine, heavy metals, and pollutants.

FREE OF: Sulfates, Silicones, Phthalates, Paraben, MIC/MIT, Protein. Color safe, vegan, suitable for chemically treated hair

Water/Aqua/Eau, Sodium Lauroyl Methyl Isethionate, Cocamidopropyl Hydroxysultaine, Sodium Lauroyl Glutamate, Coco-Betaine, Disodium Laureth Sulfosuccinate, Acrylates Copolymer, Cocamidopropyl Betaine, Cocamidopropylamine Oxide, Sodium Methyl Oleoyl Taurate, Decyl Glucoside, Bis-Aminopropyl Diglycol Dimaleate, Sodium Lauryl Sulfoacetate, Coco-Glucoside, Lauryl Glucoside, Panthenol, Trisodium Ethylenediamine Disuccinate, Ethylhexylglycerin, Polyquaternium-11, Sodium PCA, Pentasodium Triphosphate, Sodium Lactate, Arginine, Aspartic Acid, PCA, Citric Acid, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Phenoxyethanol, Chlorphenesin, Sodium Benzoate, Benzoic Acid, Fragrance (Parfum), Citral, Hexyl Cinnamal, Limonene

I truly believe that a healthy hair journey starts with the perfect clean slate! That’s why I’m so excited to offer you the Olaplex Nº.4C Bond Maintenance® Clarifying Shampoo. It’s a key part of getting those long-lasting, salon-gorgeous results at home. 💖

Forget those harsh clarifying shampoos that can leave hair feeling dry and crunchy. This advanced, sulfate-free formula uses a special Broad-Spectrum Clarifying System to gently wash away everything you don’t want—like heavy metals, chlorine, and product gunk—while protecting your hair’s essential moisture. It purifies your hair to reveal its true, brilliant shine and softness. I recommend using it weekly to keep your hair at its healthiest and to make sure your other styling products can work their magic. It’s a clean choice you can feel amazing about! 🌿

Check out more Olaplex Products here!

Weight	8.5 oz

Rated 5 out of 5

erinriera – 09/15/2025

Washing my hair once a week means i need to get that good good clean! This deep cleaning clarifying shampoo freshens up my scalp and preps my hair for whatever rich juicy mask i’m gonna put on after! she’s strengthening and removes light mineral and product buildup in between chelating treatments!