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Olaplex Shampoo
Olaplex shampoos are built around the brand's bond-building technology, which means they do more than clean your hair. Each formula targets the disulfide bonds inside the hair shaft that get broken by chemical treatments, heat and mechanical stress. The range includes options for everyday maintenance, deep cleansing, and colour correction. Whether your hair is bleached, colour-treated or simply dry and damaged, there is a shampoo in the Olaplex line designed for that specific need.
How does Olaplex Shampoo work?
Olaplex shampoos contain the brand's patented active ingredient Bis-Aminopropyl Diglycol Dimaleate, which works by reconnecting broken disulfide bonds within the hair structure. These bonds are responsible for the strength and integrity of each hair strand, and they are commonly damaged by bleaching, colouring, heat styling and everyday friction. Using a bond-building shampoo helps to reinforce that internal structure with every wash, rather than just coating the surface of the hair. This makes Olaplex shampoos particularly useful for hair that is chemically treated, brittle or prone to breakage. They are generally sulphate-free, making them suitable for colour-treated hair since they clean without stripping colour too aggressively. It is worth noting that Olaplex shampoos work best as part of a consistent routine and are not a one-wash fix for severely damaged hair. For the best results, they are designed to be used alongside other products in the Olaplex system.
No.4 Bond Maintenance Shampoo: everyday bond care
The No.4 Bond Maintenance Shampoo is the everyday workhorse of the Olaplex shampoo range. It cleanses the hair gently while actively working to repair broken bonds, making it a good choice for anyone with chemically treated, damaged or dry hair who wants to maintain results between salon visits. The formula is sulphate-free, so it is safe for colour-treated hair and will not cause colour to fade prematurely. Apply it to wet hair, work into a lather and rinse thoroughly before following up with the No.5 Bond Maintenance Conditioner for best results. It is suitable for all hair types, though those with very fine hair may prefer to use it a few times a week rather than daily to avoid any heaviness.
How often should you use it?
For most people, two to three times a week is a practical starting point, though you can use it at every wash if needed. Pair it consistently with Olaplex No.5 or No.8 to get the most out of the bond-building benefits.
No.4C Bond Maintenance Clarifying Shampoo: deep clean for build-up
The No.4C is a clarifying shampoo, which means it has a stronger cleansing action than the regular No.4. It is designed to remove product build-up, hard water minerals and excess oils that accumulate over time and can weigh hair down or dull its appearance. Because it cleanses more thoroughly, it is not intended for daily use. Most people find that once or twice a month is enough, or after periods of heavy product use. It still contains Olaplex's bond-building technology, so it is gentler on the hair's internal structure than many traditional clarifying shampoos. Follow it up with a nourishing conditioner or the Olaplex No.8 Bond Intense Moisture Mask to restore moisture after the deeper cleanse.
No.4P Blonde Enhancer Toning Shampoo: for blonde and light-coloured hair
The No.4P is a purple toning shampoo aimed at blonde, silver, white or highlighted hair. The violet pigments neutralise unwanted yellow and brassy tones that develop between salon appointments, keeping light hair looking fresh and cool-toned. Like the rest of the Olaplex shampoo range, it also works on bond repair, so it addresses both colour maintenance and hair health at the same time. Leave it on for two to five minutes before rinsing for a more noticeable toning effect, or rinse immediately for a lighter result. Be aware that leaving it on too long can result in a purple tint, especially on very light or porous hair, so it is worth doing a short test first. It is not a treatment for hair loss or thinning and should not be confused with scalp care products.
Tips for using purple shampoo
Start with a shorter processing time, around two minutes, and adjust from there depending on how much toning your hair needs. If you have very porous or bleached hair, keep a close eye on it, as the pigment can deposit quickly.
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