What Is Olaplex & How Does It Work? Guide

What Is Olaplex & How Does It Work? The Complete Guide

Posted by Marios Neofytou on

If you've ever walked out of a salon after a colour or bleach treatment and your stylist mentioned "Olaplex," you're not alone. Olaplex has become one of the most talked-about names in professional hair care — and for good reason. It genuinely changed the game for anyone who colours, bleaches, or heat-styles their hair.


But what exactly is Olaplex? How does it work? And with so many numbered products (No.0 through No.9), which ones do you actually need? Let's break it all down.


The Science Behind Olaplex


To understand Olaplex, you need to understand what happens to your hair during chemical treatments. Your hair's strength comes from millions of disulfide bonds — molecular connections within the hair shaft that give it structure, elasticity, and resilience. Every time hair is bleached, coloured, permed, or exposed to excessive heat, some of these bonds break. The more bonds that break, the weaker, drier, and more damaged your hair becomes.


Traditional conditioners and masks work by coating the outside of the hair shaft, making it feel smoother temporarily. But they don't actually repair the internal damage. Olaplex is fundamentally different. Its patented active ingredient — Bis-Aminopropyl Diglycol Dimaleate — works at the molecular level to find broken disulfide bonds and relink them. It literally reconnects what chemical and heat damage has torn apart.


This isn't marketing hype. Olaplex was developed by two chemists, Dr. Eric Pressly and Dr. Craig Hawker, and its bond-multiplying technology was validated through rigorous scientific testing before it ever reached a salon. The result? Hair that's not just softer on the surface, but genuinely stronger and more resilient from the inside.


The Olaplex System: Every Product Explained


Olaplex uses a numbered system that can feel confusing at first, but it's actually quite logical. Here's what each product does and who needs it.


OLAPLEX No.0 INTENSIVE BOND BUILDER HAIR TREATMENT - 155ml 155ml - WOOP

No.0 — Intensive Bond Building Treatment


No.0 is a primer that prepares and opens up the hair to maximise the effectiveness of No.3. You apply it before No.3 for a deeper, more intensive repair treatment. Think of it as the booster that makes No.3 work even harder.


Who needs it: Anyone with moderate to severe damage who wants the maximum repair from their at-home treatment.


Olaplex No.3 Hair Perfector 100ml — weekly bond repair treatment at WOOP Cyprus

No.3 — Hair Perfector


This is Olaplex's hero product and likely the one that put the brand on the map for consumers. No.3 is not a conditioner — it's a treatment that repairs bonds before you shampoo. You apply it to damp hair, leave it for at least 10 minutes (longer for more damage), then shampoo and condition as normal. Use it once a week for maintenance or more frequently if your hair is severely damaged.


Who needs it: Everyone. Seriously. Whether your hair is bleached, coloured, heat-styled, or just exposed to daily wear and tear, No.3 will strengthen it.


Olaplex No.4 Bond Maintenance Shampoo 250ml at WOOP Cyprus

No.4 — Bond Maintenance Shampoo


A gentle, pH-balanced shampoo that continues Olaplex's bond-repair work while cleansing. It's sulfate-free and safe for coloured hair, and it helps maintain the results of your No.3 treatments between uses.


Olaplex No.5 Bond Maintenance Conditioner 250ml at WOOP Cyprus

No.5 — Bond Maintenance Conditioner


The daily conditioner that repairs, hydrates, and detangles. It provides moisture and smoothness while continuing to work on those disulfide bonds. No.4 and No.5 work together as your everyday wash-and-condition step.


OLAPLEX No.4P | BLONDE ENHANCER TONING SHAMPOO - 250ml 250ml - WOOP

No.4P — Blonde Enhancer Toning Shampoo


A purple-tinted version of No.4 designed specifically for blonde, grey, and silver hair. It neutralises brassy, yellow tones while providing the same bond-repair benefits. Use it in place of No.4 whenever your blonde needs toning.


Olaplex No.6 Bond Smoother 100ml — leave-in frizz control at WOOP Cyprus

No.6 — Bond Smoother


A leave-in styling cream that eliminates frizz and flyaways for up to 72 hours. It also provides heat protection and speeds up blow-dry time. No.6 is especially popular in humid climates — making it perfect for Cyprus summers.


Olaplex No.7 Bonding Oil 30ml — lightweight shine oil at WOOP Cyprus

No.7 — Bonding Oil


A lightweight finishing oil that adds brilliant shine, tames frizz, and provides heat protection up to 232°C. It's incredibly versatile — use it on damp hair before styling, or on dry hair as a finishing touch for that healthy, glossy look.


Olaplex No.8 Bond Intense Moisture Mask 100ml — deep conditioning at WOOP Cyprus

No.8 — Bond Intense Moisture Mask


The most hydrating product in the Olaplex range. No.8 is a 4-in-1 mask that repairs bonds while adding intense moisture, smoothness, body, and shine. Apply after shampooing, leave for 10 minutes, and rinse. It's ideal for anyone whose hair is both damaged and dry.


Olaplex No.9 Bond Protector Nourishing Hair Serum 90ml at WOOP Cyprus

No.9 — Bond Protector Nourishing Hair Serum


A lightweight, non-greasy serum that provides heat protection up to 232°C, UV protection, and anti-pollution defence. It seals the hair cuticle for a smooth, shiny finish. Think of No.9 as your daily shield against everything your hair faces.


Building Your Olaplex Routine


You don't need every single Olaplex product to see results. Here's how to build your routine based on your needs:


The Essentials (start here): No.3 (weekly treatment) + No.4 (shampoo) + No.5 (conditioner). This trio gives you the core Olaplex bond-repair experience.


Add Intensity: Include No.0 before your No.3 treatment for deeper repair, and No.8 mask once a week in place of No.5.


Add Styling: No.6 (leave-in smoother) for frizz control, No.7 (oil) for shine, or No.9 (serum) for heat and UV protection.


For Blondes: Swap No.4 for No.4P once a week to keep your colour cool and bright.


In-Salon vs. At-Home Olaplex

In-Salon vs. At-Home Olaplex


It's worth noting that Olaplex No.1 and No.2 are professional-only products used by stylists during chemical treatments. No.1 (Bond Multiplier) is mixed into bleach or colour to prevent bond breakage as it happens, while No.2 (Bond Perfector) is applied after the service to continue rebuilding bonds. If your stylist offers an Olaplex add-on during your colour appointment — take it. It makes a significant difference to how your hair handles the chemical process.


The at-home products (No.0 through No.9) are designed to maintain and extend the results of in-salon treatments, while providing ongoing bond repair for everyday damage.


Shop Olaplex in Cyprus


WOOP carries the complete Olaplex range with island-wide delivery. All products are 100% authentic, sourced from official distributors.


Shop Olaplex at WOOP →

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