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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
Tames frizz like a dream
This leave in conditioner is incredible on my natural curls! It defines my curls very well without leaving my hair feeling heavy, sticky, or greasy. Even the Texas heat and humidity don't stand a chance against this leave-in. The product is light and spreads easily, and there's no need to saturate every strand of hair, so no wasting product! It makes my split ends seem to disappear, which makes my curls look fresh and healthy even when it's not wash day. This leave-in is great for softening and smoothing your hair while still giving your hair volume, but without it ending up frizzy and unmanageable by the end of the day. It has a light, clean scent that's nice but not overwhelming. This product was provided for promotional purposes in exchange for my honest review
Summer hair Saver!
This Olaplex has been a lifesaver to my hair since we returned from vacation. I've been using the shampoo and conditioner as well, but this one has been an epic lifesaver for me because I spent so much time out in the sun pool and the ocean. Any ladies with super bright blonde hair, understand how this can dramatically affect, not only the feel but the look of your hair as well. Since returning home, I have used this product consistently, and it has made a world of difference. My hair feels more manageable, shinier, and healthier. I'm not want to praise products unless they absolutely work so I promise you this one does the job it says it's going to do. If you are a woman with bleached lightened or other processed hair, you definitely need this product in your life. Especially during the summer months when the heat makes hair unmanageable at times.
LOVED THE RESULTS
Hair Type Very Curly Hair
Prior to using Olaplex No.5 Leave In Moisturize & Mend Leave-In Conditioner my hair was dried out and obviously heat damaged. In addition, split ends and breakage are current hair issues for me. I tried the conditioner for a length of time . There was noted visible changes . The changes to my hair were in several areas. My hair was not dull , it appeared healthier and more manageable . I did also note that the previous frizziness was controlled . In regards to the split ends, my hair began to bond and the split ends are markedly improving. This product is definitely one I would continue to use moving forward. The texture of the conditioner is smooth not greasy.It was easy to apply.There was no heavy residue or dried flakes of conditioner left in my hair . The conditioner has a light rosemary scent which was a plus! I also like the packaging being easy and convenient. This product was provided for promotional purposes in exchange for my honest review. I recommend and love the Leave-In Conditioner, Olaplex!


10/10 recommend
Hair Type Straight Hair
Definitely try this product for yourself!! you won't regret it. I love this product. I saw a little bit of growth after consistently using it. my hair became softer and it looked and felt more thicker than usual. the pump on the product is something easy to use and so handy. it comes out fast though so be prepared. the product itself absorbs pretty quickly in your hair as well which i love. this is a promo for my honest review.


So good!
I love this Olaplex No.5 Leave-In™ Moisturize & Mend Leave-In Conditioner! For reference, I have long hair that has been bleached numerous times over the last few years. I need all the moisture I can get for my hair to keep it healthy from all the bleaching I do. I love how easy this product is to use. You just apply it through the hair after showering, and it immediately starts working. I like to divide my hair into three sections when applying products like this so I can make sure it's distributed evenly. After applying, I immediately noticed how soft and supple my hair felt. You definitely get the conditioning benefits right off the bat. I'm excited to keep using this and see if it continues to help repair my damaged hair. You only need a small amount, and the bottle is fairly large so I expect this to last me at least 4-5 months. Overall, I think this is a solid option for those with damaged hair, wether it be from heat damage or chemical damage.
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