Olaplex No. 0 Intensive Bond Building Hair Treatment 5.2oz

87%

Repair Effectiveness

Hair Strengthening

Shine Enhancement

Suitability for All Hair Types

Ease of Use

Frizz Control

Value for Money

Packaging & Dispensing

Long-term Results

Fragrance

Compatibility with Color-treated Hair

User Experience with Heat-damaged Hair

Overall Satisfaction

Overview

Olaplex No. 0 Intensive Bond Building Hair Treatment 5.2oz is a professional-grade formula designed to repair and strengthen hair from the inside out. This bond-building treatment is ideal for those with damaged hair looking for a deep, restorative solution. When used as part of a two-step system with Olaplex No. 3, this treatment provides enhanced results, targeting broken hair bonds and improving the overall health of your hair. With consistent use, the product promises a noticeable difference in strength and shine.

Key Ingredients & Benefits

This treatment utilizes Olaplex's patented Bond Building technology, which focuses on repairing the structural damage caused by heat, chemicals, and other environmental factors. By reconnecting broken bonds, it helps provide up to 68% more repair and makes hair up to three times stronger. Regular use improves the strength and integrity of hair, helping prevent future breakage and damage. The formula works to restore hair's natural resilience while providing deep moisture and protection.

Best For

Olaplex No. 0 is a great option for anyone dealing with dry, damaged, or chemically treated hair. It works well for all hair types, from fine to coarse, and can help restore hair that has been subjected to color treatments or excessive heat styling. If you're looking for professional-level hair repair without leaving your home, this product is ideal. Those struggling with breakage or seeking to fortify weak, brittle strands will benefit the most from this intensive treatment.

User Feedback

Many users have reported visible results after just a few applications of this bond-building treatment. Reviews often mention an improvement in hair strength and a significant reduction in frizz, especially for those who frequently color or heat-style their hair. However, some users note that it works best when combined with Olaplex No. 3 for maximum repair. A few users have pointed out that the formula may feel a bit heavy for finer hair types, but it’s highly praised for its effectiveness in restoring overall hair health.

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Pros

Works effectively as part of a two-step system when paired with Olaplex No. 3.
Strengthens and repairs hair, making it noticeably shinier and healthier after a few uses.
Ideal for people with dry, damaged, or chemically treated hair, helping restore strength.
Users find it especially helpful in reducing frizz and minimizing hair breakage.
Works well for all hair types, including fine, coarse, and curly hair.
Provides long-term protection against further damage by strengthening hair bonds.

Cons

Some users find that it can weigh hair down if overused, particularly with fine hair.
Results take time, and some users expect quicker improvements.
Can be too heavy for users with naturally oily hair or those using it frequently.
Not suitable for those seeking an instant fix, as it requires consistent use for best results.
May not be enough for extremely heat-damaged hair, requiring additional treatments.
The product's liquid form may be messy or difficult to apply evenly for some users.

Ratings

After analyzing verified user feedback worldwide across multiple languages and platforms, we found that Olaplex No. 0 Intensive Bond Building Hair Treatment 5.2oz has generally received high praise for its effectiveness in repairing damaged hair. While many users reported noticeable improvements in hair strength and shine, others mentioned that the product works best when used as part of the full Olaplex system. Spam, bot-generated, and exaggerated reviews were filtered out to provide a balanced and authentic overview of the product's performance. Both strengths and pain points are reflected in the scores below.

Repair Effectiveness

94%

Many users report significant improvements in hair strength and resilience after just a few uses of this treatment. They appreciate how quickly it restores damaged hair, particularly for those who have suffered from color treatments or frequent heat styling. The long-lasting repair effects contribute to smoother, healthier-looking hair over time.

A small number of users mention that while it delivers noticeable results, it may take longer than expected to fully repair more severely damaged hair. Some also feel that it works best when paired with other Olaplex products, and might not be as effective if used alone.

Hair Strengthening

92%

The product is highly praised for its ability to strengthen hair from within, leaving it feeling less brittle and more robust. Reviewers note that hair appears visibly healthier, with reduced breakage, even after a few applications. Regular use helps maintain strength, especially for those with fine or chemically processed hair.

While many users see great results, a few find that the product’s strengthening effect isn’t immediate and requires consistent use over weeks. Some users also report that it may not be as effective for extremely coarse or heavily damaged hair without additional treatments.

Shine Enhancement

88%

A majority of users love the added shine that this treatment brings to their hair, making it look smoother and more polished. The improved shine lasts for several days, and it works particularly well for those with dull, lifeless hair. It’s also effective for enhancing color-treated hair's luster.

However, a few users feel that the shine enhancement could be more prominent, especially on darker or thicker hair types. Some have mentioned that they see minimal difference in shine compared to other hair care products they’ve used.

Suitability for All Hair Types

90%

This product is widely appreciated for being versatile and suitable for all hair types, from fine to coarse and curly. It’s especially beneficial for dry or chemically-treated hair, as it addresses various needs like hydration and strength. Users with color-treated hair particularly appreciate how it restores vibrancy and health.

A few individuals with naturally oily or fine hair feel that it may weigh their hair down if overused. Some also mention that it works best when combined with other Olaplex products, which may be an additional cost for some users.

Ease of Use

85%

Most users find the application process straightforward and hassle-free. The liquid formula is easy to apply, and the pump dispenser ensures precise control, minimizing product waste. It’s also praised for its relatively quick absorption into hair without leaving a greasy residue.

A few customers find the liquid texture a bit runny, which can make it difficult to apply evenly to hair. Some also mention that it requires more product to cover longer or thicker hair, leading to faster consumption of the bottle.

Frizz Control

87%

The product is praised for its effectiveness in taming frizz, leaving hair smooth and manageable. Users with curly or unruly hair report a significant reduction in frizz after regular use. It provides lasting control without weighing down hair, making it ideal for humid climates.

Some users note that while it reduces frizz, it doesn't fully eliminate it in very humid or rainy weather. A few people also mention that they need to use a separate frizz control product to achieve their desired smoothness.

Value for Money

84%

Many users feel the price is justified by the product’s effectiveness in strengthening and repairing hair. They believe it provides salon-level results at home and can help extend the lifespan of their hair color and overall hair health. The fact that a little goes a long way adds to the value.

Some find the cost a bit high, especially when considering that it works best as part of a two-step system with other Olaplex products. A few users also mention that the size of the bottle isn’t ideal for long-term use, especially for those with thicker or longer hair.

Packaging & Dispensing

80%

20%

The product’s bottle design with a pump dispenser is appreciated by many users for its convenience and cleanliness. It allows for controlled dispensing, reducing the chance of product wastage. The sleek packaging also adds to the product’s premium feel.

However, some users have expressed that the pump dispenser can become clogged or difficult to use when the bottle is nearly empty. A few reviewers suggest that a different dispensing system might work better for ensuring every drop is used.

Long-term Results

83%

With consistent use, many buyers report noticeable long-term improvements in hair texture and strength. They find that hair becomes progressively stronger and less prone to breakage. Several users mention that the product continues to improve their hair health even after the initial few uses.

Some users feel that the product requires prolonged, regular use to see lasting results, which may be inconvenient for those looking for quicker fixes. A few also report that results plateau over time, requiring additional treatments for continued improvement.

Fragrance

78%

22%

While the scent is generally subtle, many users appreciate its light, pleasant fragrance that doesn’t overpower other products or linger too long in the hair. It’s ideal for those who prefer a more neutral or mild fragrance in their hair care routine.

Some users dislike the fragrance, feeling it’s too faint or unappealing. A few have mentioned that they would prefer a stronger or more distinct scent, particularly those who enjoy hair care products with more noticeable fragrances.

Compatibility with Color-treated Hair

91%

This product is highly recommended by users with color-treated hair, who find that it helps restore their hair’s health, shine, and vibrancy. It minimizes damage caused by coloring processes and helps prevent further breakage, making it an essential part of a color care routine.

A few color-treated hair users mention that while it helps with restoration, they would like more immediate results. Some feel that a longer application time is needed to see maximum benefits.

User Experience with Heat-damaged Hair

89%

Many users with heat-damaged hair have seen significant recovery in hair texture and overall strength. They appreciate how this treatment restores moisture and reduces the appearance of split ends, even after frequent heat styling.

However, some users note that it doesn’t completely reverse the effects of severe heat damage on its own. They suggest combining it with other products for more intensive repair in cases of extreme heat exposure.

Overall Satisfaction

90%

Most users are very satisfied with the results, praising its ability to repair damaged hair, restore strength, and enhance shine. Many have reported improvements after just a few uses, and they are pleased with how well it works with other Olaplex products for a complete hair care routine.

Some users are less impressed with the price-to-performance ratio, feeling that other products in a similar price range might offer comparable results. A few also wish it were more effective on extremely coarse or thick hair without needing additional treatments.

Suitable for:

The Olaplex No. 0 Intensive Bond Building Hair Treatment is ideal for individuals with dry, damaged, or color-treated hair, especially those seeking a professional-grade solution for hair repair at home. It’s particularly beneficial for users who frequently heat-style their hair or have undergone chemical treatments, as it strengthens and repairs hair bonds. This product is also well-suited for all hair types, including fine, coarse, and curly hair, offering a versatile solution to improve texture, reduce breakage, and enhance shine. For anyone looking to restore their hair’s health and resilience, this treatment provides long-term strengthening and protection.

Not suitable for:

This treatment may not be the best choice for individuals with very fine or oily hair, as some users have found it can weigh hair down if overused. People seeking quick results may also be disappointed, as the benefits are more noticeable with consistent use over time. Additionally, those with extremely coarse or severely heat-damaged hair might require additional products alongside this treatment for more intensive repair. If you're looking for an immediate fix or prefer products that don’t require a multi-step regimen, this may not be the ideal option.

Specifications

Product Type: This is a professional-grade bond-building hair treatment designed to repair and strengthen damaged hair.
Size: The product comes in a 5.2oz bottle, offering a moderate amount for regular use.
Hair Types: Suitable for all hair types, including fine, coarse, curly, and color-treated or heat-damaged hair.
Form: The product is a liquid, formulated for easy application to dry hair.
Technology: Features patented Bond Building technology that targets and repairs broken hair bonds.
Results: Provides up to 68% more repair and 3x stronger hair with regular use.
Usage: Recommended to be used as part of a two-step system when combined with Olaplex No. 3.
Packaging: Comes in a standard bottle with a convenient pump dispenser for easy application.
Cruelty-Free: This product is cruelty-free, ensuring no animal testing during development.
Key Benefits: Strengthens and repairs hair bonds, helping to prevent future damage and breakage.
Fragrance: Mild and pleasant fragrance that doesn't linger strongly on the hair after use.
Time to Effect: Users report visible improvements in hair strength and shine after just a few uses.
Best Use: Ideal for those seeking professional-level hair repair treatment at home, especially for damaged or chemically treated hair.
Vegan: This product is free from animal-derived ingredients, making it suitable for vegans.
Compatibility: Works well with heat-styling and color-treated hair to restore health and reduce damage.
Safety: Safe for use on sensitive scalps; however, users with allergies should perform a patch test.
Application Time: Recommended to leave on for at least 10 minutes before rinsing for optimal repair.
Consistency: The treatment has a smooth, lightweight liquid texture that absorbs well into the hair.
Repair Effectiveness: Targets the internal structure of hair to restore strength and elasticity, reducing frizz and breakage.

FAQ

Apply the product to dry hair, ensuring even distribution from root to tip. Leave it on for at least 10 minutes, and then follow with Olaplex No. 3 for the best results. This two-step system helps repair and strengthen damaged hair.

Yes, this product is designed for all hair types, including color-treated hair. It helps to strengthen hair bonds and repair damage caused by coloring, ensuring your hair stays strong and healthy.

For optimal results, use this treatment once a week, especially if your hair is dry, damaged, or chemically treated. You may increase frequency if your hair is particularly damaged, but be sure to follow up with Olaplex No. 3 each time.

Yes, many users report a noticeable reduction in frizz after using this treatment. It works by strengthening hair bonds, which helps improve the smoothness and overall texture of the hair.

This product is generally safe for sensitive scalps, as it is free from harsh chemicals and fragrances. However, if you have a very sensitive scalp or allergies, it's always a good idea to do a patch test first.

Yes, this treatment works well for fine hair. It strengthens hair bonds without weighing hair down, leaving it feeling stronger and more manageable.

Absolutely. This product is ideal for repairing damage caused by heat styling tools like flat irons and blow dryers. It strengthens and rebuilds the hair from within, helping to restore its natural health and shine.

The key feature of Olaplex No. 0 is its patented Bond Building technology, which targets and repairs broken hair bonds. It provides professional-level repair, making it highly effective for those with severely damaged or chemically treated hair.

For the best results, it's recommended to use this treatment as part of the two-step system with Olaplex No. 3. While it offers some benefits on its own, pairing the two products significantly enhances the overall repair and strengthening effects.

The fragrance of this product is mild and not overpowering. It is designed to be pleasant but not linger too long, so it won’t interfere with other hair care products or scents you might use.