Olaplex No.4 Strengthening Shampoo - 100ml

The Olaplex No.4 Strengthening Shampoo cleanses, hydrates, and nourishes hair while targeting spli...

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SephoraOlaplex No.4 Bond Maintenance Strengthening Shampoo 100Ml
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Product Information

Full details

The Olaplex No.4 Strengthening Shampoo is designed for adults of all hair types who struggle with damage from heat styling, chemical treatments, or frequent coloring. Its primary benefit is the patented bond-building technology that repairs broken hair strands while adding essential hydration without weighing hair down. While it offers professional-grade repair, users should note that it is designed to be part of a multi-step system and may require the use of additional conditioning products for optimal detangling results on very coarse hair.

All features

Age Groupadult
GenderUnisex
SeriesNo.4
Model Part Number20140647
BrandOlaplex

Extended Product Information

FAQs

Is this shampoo safe for bleached hair?

Yes, it is specifically formulated to help repair the internal bonds of hair damaged by bleaching and chemical treatments.

Can I use this every day?

Yes, the formula is pH-balanced and gentle enough for daily use.

Does this shampoo contain sulfates?

Olaplex No.4 is formulated without harsh sulfates, making it a safe choice for color-treated hair.

Will this weigh down fine hair?

No, it is designed to provide hydration without adding heavy oils or waxes, keeping fine hair voluminous.

Do I need to use the whole Olaplex system?

While it works perfectly on its own, using it alongside the rest of the Olaplex range provides the most comprehensive repair benefits.

Troubleshooting

Hair feels slightly dry after washing

Ensure you are following up with a high-quality conditioner or the Olaplex No.5 to lock in moisture.

Not enough lather during the first wash

If your hair has a lot of styling product buildup, perform a quick initial rinse and then a second application to create a richer lather.

Pros and Cons

Pros

  • Significantly strengthens damaged hair fibers
  • Suitable for all hair textures from straight to coily
  • Leaves hair visibly softer and more manageable
  • Highly concentrated formula lasts a long time
  • Free of common harsh sulfates and parabens

Cons

  • Smaller 100ml bottle size may require frequent repurchasing
  • Does not provide significant detangling on its own
  • Higher price point compared to standard grocery store shampoos

Setup, Compatibility & Care

To integrate this shampoo into your routine, start by saturating your hair completely with water. Dispense a coin-sized amount into your palm, emulsify, and work into the scalp. Rinse thoroughly with lukewarm water. For best results, follow with the Olaplex No.5 Bond Maintenance Conditioner. Store the bottle in a cool, dry place away from direct sunlight to preserve the integrity of the active ingredients. This product is compatible with all hair types and can be used in conjunction with other non-Olaplex styling products, though it works most efficiently when used within the complete bond-building regimen.

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