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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
Love this product!
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! "This product was provided for promotional purposes in exchange for my honest review"
Didn't expect to love it this much!
Hair Type Very Curly Hair
This product was provided for promotional purposes in exchange for my honest review. I only have two major criteria and choosing my leave in creams. First for it to actually moisturize my hair second is to not weigh my hair down because I love my volume. And this product did both and I loved it. Zero irritation zero Heaviness on the scalp where it would cause build-up. The only downside I felt is that my hair wasn't moisturized until my next wash hair day but it's not a complete downside. I just haven't found a product that makes my hair feel moisturized for 4 to 5 days.

Excellent leaven
Hair Type Wavy Hair
I've been using the Olaplex No. 5 Leave-In Conditioner for a few weeks now, and I can confidently say it's become a must-have in my haircare routine. The consistency is creamy but lightweight—not too thick or greasy—so it spreads easily and absorbs quickly without leaving any residue. A small amount is enough to coat my mid-length hair, making it feel instantly softer and smoother. The scent is subtle and clean, with a slightly floral touch that lingers pleasantly without being overpowering. I also really like the packaging—the bottle is compact and travel-friendly with a sleek design, and the product comes out easily. It feels high-quality, just like the product inside. It's great for all hair types, and it helps tame frizz, adds shine, and strengthens my ends. I love that it hydrates and repairs without the need to rinse. My hair feels healthier every time I use it!




Olaplex
I always love trying a new hair product, especially when it comes to something that I am already on the hunt for this did not disappoint. I noticed a difference after the first use my hair has been so dry lately and this definitely hydrated and when did my split ends.
A Must Have for Dry, Damaged Hair – Lightweight, Hydrating
Hair Type Wavy Hair
I've been using the Olaplex No.5 Leave-In Moisturize & Mend Conditioner and it's seriously one of the best additions to my haircare routine. It's super lightweight but still manages to deeply hydrate and smooth my dry, frizz-prone hair. It helps with detangling, reduces breakage, and leaves my strands feeling soft, silky, and manageable without weighing them down. I've noticed a visible difference in my hair's overall texture and shine. Plus, it smells clean and fresh, not overpowering. Whether I let my hair air dry or use heat, this product gives it the moisture and protection it needs. Definitely a game-changer for anyone dealing with damage, dryness, or dullness.


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