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OLAPLEX N°.0.5 Scalp Longevity Serum Treatment
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Highlights
Summary
OLAPLEX N°.0.5 Scalp Longevity Serum Treatment is a weightless scalp serum that targets visible scalp aging, strengthens the scalp barrier, and immediately hydrates to support softer, healthy-looking hair.
Benefits
- Immediately hydrates and soothes scalp
- Strengthens and protects scalp barrier and microbiome
- Promotes soft, shiny and visibly healthy hair
- Hydrating and Anti-aging
Key Ingredients
- Proprietary Scalp Barrier-Building Complex Patented OLAPLEX Bond Building Technology™ re-links disulfide bonds within keratin to strengthen the Stratum Corneum–the scalp barrier. Plus, a blend of essential fatty acids and ceramides provides nourishing lipid replenishment to hydrate a dry scalp.
- Antioxidant-Rich Blend Of Lavender Extract & Tazman Pepper extract Helps protect against damaging free radicals and accelerated scalp aging caused by stressors like sun, poor water quality, irritants, chemical treatments, hair products, stress, lack of sleep, and an imbalanced diet.
- Biome Pro-Balancing Blend Balances the microbiome and reinforces the scalp barrier to maintain a healthy scalp environment, which helps protect hair health.
Research Results
- Visibly healthy, softer hair after 4 weeks*
- 5X more hydrated scalp immediately**
- 51% improved scalp barrier in 14 days**
- 80% said scalp felt nourished after just one use*
- *Based on a consumer perception study of 75 participants after 28 days of use.
- **Based on a 16-week dermatologist-supervised clinical test of 25 participants following usage described on label
Item 2641617
- Part hair with needlenose applicator. Squeeze gently and apply directly to scalp.
- Continue for as many sections as needed. OLAPLEX Pros suggest 3-4 sections on the crown and back of head.
- Massage thoroughly into scalp to ensure proper absorption. Use before styling wet hair or as an overnight treatment when hair is dry. For best results, use three times a week. Gentle enough for daily use.
Aqua/Water/Eau, Glycerin, Propanediol, C9-12 Alkane, Octyldodecanol, Bis-Aminopropyl Diglycol Dimaleate, Phenoxyethanol, Sodium Acrylates Copolymer, Oryza Sativa (Rice) Bran Oil, Arginine, Chlorphenesin, Glycine Soja (Soybean) Seed Extract, Hydrogenated Polydecene, Lecithin, Coco-Caprylate/Caprate, Citric Acid, Menthoxypropanediol, 1,2-Hexanediol, Ceramide NP, Cetearyl Alcohol, Glyceryl Stearate, Tasmannia Lanceolata Leaf Extract, Phenethyl Alcohol, Pogostemon Cablin Leaf/Stem Extract, Lavandula Angustifolia (Lavender) Flower/Leaf/Stem Extract, Lavandula Oil/Extract, Pentylene Glycol, Leptospermum Scoparium Branch/Leaf Oil, Ceramide AP, Cholesterol, Hydrogenated Lecithin, Phytosphingosine, Stearic Acid, Magnolia Officinalis Bark Extract, Piper Nigrum (Pepper) Seed Extract, Tetraacetylphytosphingosine, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Xanthan Gum, Hydrolyzed Sodium Hyaluronate, Ceramide EOP, Sodium Benzoate, Ethylhexylglycerin, Glycosphingolipids.
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Hair Type
Most Helpful Positive Review
89/100
Before I tried this product, I viewed Olaplex as a brand for people who were born with good hair and just went to the salon to drop a few c-notes to get a touch up. I'm not one of those people. With hair, I am very low maintenance, preferring to wet it and forget it (antithetical to Olaplex in my ...
Most Helpful Critical Review
Not for me
I really wanted this scalp treatment to be a win, especially since I usually love Olaplex' products. Their shampoo and conditioner have been staples in my routine for a while, so I had high expectations going into this. Unfortunately, it didn't quite deliver on what I needed it for. To start with th...
180 results
I would buy this product again
I have used this product as a gift and also as a purchase I will repurchase this product over and over again it works and ur hair in the end is very soft and non frizz it left my scalp feeling clean and fresh all at same time making me look like supermodel hair
Soothing, Hydrating & Promotes Growth But the Scent Isn't
Hair Type Very Curly Hair
I love how soothing this feels on my scalp! My scalp used to feel tight and dry, but this serum hydrates it instantly and leaves it feeling calm and refreshed. In just two weeks, I noticed my hair grew an extra inch, and I even saw new growth on my bald spots which honestly blew me away. It's lightweight, non-greasy, and makes my hair feel soft and healthy. I appreciate the bond-building and microbiome-balancing ingredients, it truly feels like scalp care, not just another hair serum. I would've given it 5 stars, but the smell can really be off-putting. Also, the bottle is quite small for the price. Still, it's a very good product overall and definitely worth trying if you struggle with dryness, itchiness, or scalp thinning. 💯 PS: This product was provided for promotional purposes in exchange for my honest review
Scalp Relief!
Hair Type Straight Hair
I have been using the scalp longevity treatment Olaplex no. 0.5 on both wet and dry hair, and I am impressed with the effect. The applicator is very convenient to use, so I just spread the treatment on my scalp by massaging it in. And it gives a pleasant cooling sensation. I have experienced occasional irritation from bleaching my hair, and this serum helped me a lot. It immediately hydrates the scalp and promotes softer, healthy-looking hair. This treatment does not make your hair greasy, so I am very happy with the result. I would recommend it to everyone! **This product was provided for promotional purposes in exchange for my honest review.


A treatment I never knew I needed
Hair Type Straight Hair
As someone who's always on the lookout for ways to care for both my hair and scalp health, I was really excited to try the OLAPLEX No. 0.5 Scalp Longevity Treatment, and it did not disappoint! This lightweight yet powerful serum glides onto the scalp easily with the precise nozzle applicator, and instantly feels cooling and hydrating. It doesn't leave behind any greasy residue or buildup, which is super important for me as I have a sensitive, occasionally dry scalp. I've been using it consistently for the past two weeks and have already noticed a difference in scalp comfort and less flakiness. It feels like it's restoring balance to my scalp barrier while helping my roots feel stronger and healthier. I also love that it supports anti-aging benefits for the scalp, something I didn't realize I needed until now. Highly recommend this to anyone who wants to future-proof their hair health from the root up!


How OLAPLEX N°. 0.5 Transformed My Scalp
As someone who's always on the lookout for ways to keep my hair and scalp in top shape, I was really intrigued when I saw OLAPLEX launch their N°. 0.5 SCALP LONGEVITY TREATMENT. I've been a long-time fan of some of their other products for hair repair, so a dedicated scalp treatment from them definitely piqued my interest. First off, let's talk about the packaging. It's consistent with the rest of the OLAPLEX line – simple, clean, and feels professional. The nozzle applicator on this one is a nice touch; it makes it super easy to get the product directly onto the scalp without wasting any. Using it was straightforward. I applied it to a damp scalp, section by section, and then gently massaged it in. The texture is lightweight, not greasy or heavy at all, which is a big plus for me as I don't like products that leave a residue. It also has that signature, very mild OLAPLEX scent, which is barely noticeable and dissipates quickly. Now, for the results. After just a few uses, I started to notice a difference. My scalp, which can sometimes get a bit itchy or feel a little tight, felt significantly more comfortable and soothed. It seemed to calm down any minor irritation I had. What truly impressed me was the feeling of overall balance. My scalp felt less oily at the roots, but also not stripped or dry. It felt... healthier. While it's not a direct hair growth product, I do feel like a healthier scalp environment could contribute to better hair growth over time, or at least help maintain the hair I have. My hair also seemed to have a bit more lift at the roots, which I attribute to the improved scalp health. One thing to note is that, like most OLAPLEX products, it's an investment. However, a little goes a long way, so the bottle lasts a decent amount of time. For me, the benefits I've seen in terms of scalp comfort and overall health make it worth it.