OLAPLEX No.0 Intensive Bond Building Hair Treatment is a favourite among haircare experts for its transformative effects on dry, brittle, and damaged hair. While the miracle-working abilities of OLAPLEX are well-known, there’s still some confusion about what OLAPLEX No.0 actually is and how to use it alongside No.3 for the best results.
In this guide, we’ll cover everything you need to know about OLAPLEX No.0—how to use it, which products to pair it with, and the benefits you can expect when you add these OLAPLEX products to your haircare routine. If you want to know more about the rest of the OLAPLEX range, check out our guide on all the best OLAPLEX products.
What Is OLAPLEX No.0?
OLAPLEX No.0 is designed to deeply repair, strengthen, and protect your hair. It’s the first step in a two-part system, setting the stage for the No.3 Hair Perfector to transform damaged hair. Suitable for all hair types, it’s particularly beneficial for hair that’s visibly damaged, dry, or brittle. Hydrating your hair has never been easier.
If you know what OLAPLEX is, you’ll know that every product contains Bis-Aminopropyl Diglycol Dimaleate, which repairs broken hair bonds at a molecular level, restoring hair to a gloriously healthy state. No.0 contains the highest concentration of OLAPLEX’s patented technology, priming your hair to absorb nourishment, rebuild bonds, and protect it from future damage. The formula absorbs quickly, penetrating deep into each strand to begin the repair process.
Whether you choose to use No.0 on its own or with No.3, your hair will be noticeably shinier and softer from the very first use.
How to Use OLAPLEX 0 and 3 Together
Using OLAPLEX No.0 and No.3 together is the ultimate haircare combination for those in need of deep nourishment. You can find out more about how to use OLAPLEX No.3 in our guide, but find out how to use OLAPLEX 0 and 3 together, here:
1. Start by applying No.0 to dry hair, ensuring each strand is saturated from root to tip. Your hair should feel damp but not dripping wet.
2. Let the formula sit for 10 minutes.
3. Without rinsing, apply No.3 directly over No.0 and leave it on for another 10 minutes.
4. After the time has passed, rinse your hair thoroughly.
5. Follow up with your usual shampoo and conditioner. We recommend using OLAPLEX No.4 Bond Maintenance Shampoo and No.5 Bond Maintenance Conditioner to continue supporting the treatment with more of that hair-loving Bis-Aminopropyl Diglycol Dimaleate. Conveniently, these are available together as the Daily Essentials Duo. You can find even more tips on how to use OLAPLEX shampoos and conditioners in another of our guides.
6. Follow up by treating your hair further with either OLAPLEX bonding oil, or OLAPLEX No.9 serum.
What’s the Best Way to Apply OLAPLEX No.0?
Depending on your hair type, length, and thickness, you might need to section your hair before applying No.0 to ensure even coverage. For dry hair, spray the product on and then comb it through from root to tip. If you have fine hair, you may not need much prep—just tilt your head to make sure you coat every part of your hair. For longer or thicker hair, it’s best to divide your hair into sections and secure them with clips or hair ties to ensure even application.
Can You Use OLAPLEX No.0 on Dirty Hair?
OLAPLEX No.0 is best applied just before your regular shampoo and conditioner routine—whether that’s once, twice, or three times per week. It’s not recommended to apply No.0 to extremely dirty hair, as excessive grease, product build-up, or dirt can prevent the product from penetrating the hair deeply. While it can work through a normal level of dirt (like day-three hair), too much grime may reduce its effectiveness in repairing damaged and broken bonds.
Can You Use OLAPLEX No.0 on Wet Hair?
OLAPLEX No.0 should be used on dry hair, it’s used to make your hair damp before applying No.3. After application, your hair should feel damp, not soaking wet. Once No.0 has been on for 10 minutes, you can apply No.3 to the still-damp hair.
Can You Use OLAPLEX No.0 Alone?
Yes, you can use OLAPLEX No.0 on its own, but you’ll miss out on the same level of hair repair as if you used No.0 and No.3 together. The Restoration Duo is truly worth it!
Can You Leave OLAPLEX No.0 on Overnight?
While it might be tempting to leave OLAPLEX products on for longer than recommended, there’s no need to leave No.0 on for more than the suggested 10 minutes. If you’re looking for an overnight treatment, try hair oil instead. OLAPLEX No.7 is perfect for this—apply it from the mid-lengths to the tips for a luxurious bonding, frizz reduction, and heat protection boost while you sleep.
It’s time to give your hair the love it deserves. Invest in No.0 and No.3 to start your hair transformation today and enjoy your best-ever hair with OLAPLEX.
