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Highlights
Summary
This moisturizing leave-in provides instant results and continuous repair and protection from cortex to cuticle. No.5LEAVE-IN™ immediately seals split ends and promotes visibly healthier hair after one use. Go beyond hydration with OLAPLEX Bond Building Technology™ and High-Adhesion Sealing Complex.
Benefits
- Instantly hydrate, soften, and detangle
- Immediately seal split ends
- Continuously repair and protect
Research Results
- Revives hair health leaving it softer, hydrated, and healthier-looking
- 12x more moisture after one use*
- Up to 88% split-end sealing after one use*
- Reduces breakage by 81%*
- Heat protection up to 450°F/232°C
- Vegan. Color-safe.
- *As tested in a clinical facility using curly tresses.
Key Ingredients
- HIGH-ADHESION SEALING COMPLEX: Immediately and continuously mends split ends.
- HYDRAMINO REPLENISHING BLEND: Provides hydration, conditioning, detangling, and shine.
- FUTURE DAMAGE SHIELD: Helps repair and prevent damage from styling and heat up to 450°F.
- OLAPLEX BOND BUILDING TECHNOLOGY™: Re-links the disulfide bonds that give hair its strength and structure.
Item 2660572
- Apply 1-2 pumps to clean, damp hair. Add more as needed. 2. Follow with your preferred stylers. Fine Hair: Begin with 1 pump. Medium to Coarse Hair: Begin with 2 pumps.
Water/Aqua/Eau, Cetearyl Alcohol, Astrocaryum Murumuru Seed Butter, Propanediol, Behentrimonium Chloride, Glycerin, Cetyl Alcohol, Isoamyl Laurate, Squalane, Bis-Aminopropyl Diglycol Dimaleate, Brassicyl Valinate Esylate, Cetyl Esters, Pentylene Glycol, Phenethyl Benzoate, Brassica Campestris/Aleurites Fordi Oil Copolymer, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Caprylic/Capric Triglyceride, Cetrimonium Chloride, Caesalpinia Spinosa Gum, Fructooligosaccharides, Beta Vulgaris (Beet) Root Extract, Sodium PCA, Hydroxypropyl Starch Phosphate, Guar Hydroxypropyltrimonium Chloride, Sodium Lactate, Hydrogenated Ethylhexyl Olivate, Calcium Gluconate, Argania Spinosa Kernel Oil, Caprylyl Glycol, Cocos Nucifera (Coconut) Oil, Panthenol, Arginine, Ethylhexylglycerin, Oryza Sativa (Rice) Bran Extract, Sodium Phytate, Aspartic Acid, Potassium Lactate, Ximenia Americana Seed Oil, PCA, Hydrogenated Olive Oil Unsaponifiables, Butylene Glycol, Lactic Acid, Raphanus Sativus (Radish) Seed Extract, Octyldodecyl Oleate, Octyldodecanol, Helianthus Annuus (Sunflower) Extract, Propylene Glycol, Glycine, Citric Acid, Alanine, Algin, Coco-Glucoside, Sorbitan Oleate, Serine, Tocopherol, Rosmarinus Officinalis (Rosemary) Leaf Extract, Valine, Carrageenan, Chitosan, Xanthan Gum, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Magnolia Officinalis Bark Extract, Betula Alba Bark Extract, Crambe Maritima Extract, Ulmus Fulva Bark Extract, Caesalpinia Spinosa Fruit Extract, Sodium Hyaluronate, Hydrolyzed Ceratonia Siliqua Seed Extract, Zea Mays (Corn) Starch, Helianthus Annuus (Sunflower) Sprout Extract, Polyquaternium-7, Sodium Hydroxide, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate, Fragrance (Parfum), Hexyl Cinnamal, Limonene, Citral, Linalool, Citronellol.
Ingredients are subject to change. For the most current ingredient list, please consult the product packaging of the item you received
This brand is excluded from most Ulta Beauty coupons.
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Hair Type
Most Helpful Positive Review
I would buy this product again!
When it comes to hair care, finding the perfect product for wavy and curly hair can feel like discovering a rare gem. If you've been on the hunt for a leave-in conditioner that hydrates, smooths frizz, and leaves your curls looking and feeling their best, the Olaplex No. 5 Moisturize and Mend Leave-...
Most Helpful Critical Review
It's ok but there's better ones out there.
I had high hopes for this leave-in conditioner, especially with all the promises of multi-level repair, hydration, and split-end mending. And while it does deliver on a few things, I'm honestly left feeling a little underwhelmed for the price and hype. First, the good: It definitely made my hair fe...
426 results
Has good "slip!"
I am suoer picky about my leave in conditioners because I have tricky hair. I hsvr curly hair that us dry but fine so my leave-in conditioner csnt be too thicknor heavy and it had tinhave good slip. This leave in is perfect! It is very rich withiut being too heavy andnit slips rifht theough my hair! I am very happy with it! My hait looks great snd in so flad i found this product!!
It moisturizing for my hair
Hair Type Straight Hair
I felt quite in love with the leaving in conditioner. I always heat and style my hair, so use normal and leave in conditioner all the time. This one has a pleasant smell. The conditioner left my hair shiny and a bit softer. However, if you don't blow dry it completely, the hair with conditioner will clump up. This product was provided for promotional purposes in exchange for my honest review.


A Game-Changer for Healthier, Stronger Hair
Hair Type Very Curly Hair
- [ ] Olaplex No. 5 Bond leave-in Conditioner has completely transformed the way my hair looks and feels. From the moment it touches your strands, you can tell this isn't your average conditioner. It has a rich, creamy texture that instantly coats and nourishes without feeling greasy or heavy. - [ ] What truly sets this conditioner apart is how deeply restorative it is. After rinsing, my hair feels incredibly soft, silky, and smooth—like each strand has been sealed and strengthened from the inside out. It also makes detangling effortless and leaves my ends looking noticeably healthier and less prone to frizz or dryness. - [ ] Over time, I've seen a significant improvement in the overall manageability and resilience of my hair. It feels stronger, looks shinier, and holds moisture so much better. The scent is light and clean—just enough to elevate the experience without overwhelming your senses. - [ ] This is more than just a conditioner—it's a treatment that works with your hair on a deeper level. If you're looking to invest in the long-term health and beauty of your hair, Olaplex No. 5 is absolutely worth it. A true staple in any serious haircare routine. This product was provided for promotional purposes in exchange for my honest review

Brings My Hair To Life!
Hair Type Very Curly Hair
I've been using Olaplex for years so it was no surprise that the No.5 did wonders on my hair! I've been dealing with dry hair, especially since I live in a humid climate so this product really gives my hair life! It's creamy and moisturizing, yet still lightweight with no greasy residue. It helps make my scalp and strands of hair hydrated, controls the frizz and overall softer. I also love the multi use of being able to use it whether I'm wearing my natural curls and air drying my hair or blow drying my hair to straighten my hair. Even when I'm wearing a slick back bun, I noticed how shiny my hair is.Overall, I love this product and it's truly a staple in my hair routine. A little product goes a long way so it's truly worth the investment. 10/10 recommend!


Love love love
"This product was provided for promotional purposes in exchange for my honest review" I'm a huge fan of Olaplex and use many of their products, so I was excited to try the No.5 Bond Maintenance Leave-In Conditioner—and it did not disappoint! It instantly reminded me of the No.8 mask with its smoothing, hydrating feel, but in a lighter, more everyday formula. It adds beautiful shine, defines my hair without any heaviness, and keeps it feeling soft and healthy. I especially love how it doesn't weigh down my strands or leave any residue. The scent is that clean, signature Olaplex fragrance I've come to love—subtle but fresh and luxe. This has quickly become a staple in my routine and pairs perfectly with the rest of the Olaplex line. Highly recommend if you're looking for weightless moisture and definition!
Questions
Q&A
Showing 5 out of 13 Questions
- Q
How long will 3.3 oz last
- Asked by jo
- Official Answer By Olaplex - Brand EngageOur 3.3 oz No.5L Leave-In Conditioner is designed to be used sparingly, starting with 1 pump for fine hair or 2 pumps for medium to coarse hair. How long the bottle lasts will vary based on your hair length, thickness, and frequency of use.Was this answer helpful to you
- Q
Is is good for short dry gray hair
- Asked by Gmom
- Official Answer By Olaplex - Brand EngageYes! Nº.5L can be used on all hair types and is a great option for adding hydration, softness, and manageability to dry hair.Was this answer helpful to you
- Q
Is it safe for colored hair?
- Asked by Michelle
- Official Answer By Olaplex - Brand EngageYes! No.5L is safe for color-treated hair and is designed to help hydrate, soften, and protect damaged or dry strands without stripping color.Was this answer helpful to you
- Q
Do you apply this from the roots or mid-length to ends?
- Asked by Abby
- Official Answer By Olaplex - Brand EngageApply to clean, damp hair, focusing on mid-lengths to ends. If needed, you can lightly apply to roots, but use sparingly to avoid weighing hair down.Was this answer helpful to you
- Q
Can this be used on colored hair? I have s vivid color. Thanks in advance just want to be using the correct products
- Asked by SavyGillis
- Official Answer By Olaplex - Brand EngageYes, this is safe for color-treated and vivid hair. It helps maintain hydration and supports stronger-looking, healthier hair without affecting your color.Was this answer helpful to you