In Stock
Olaplex

N°.0.5 Scalp Longevity Hydrating and Anti-aging Scalp Serum Treatment

4.5 · 321 reviews
4,673 ₽

What it is: A weightless scalp serum that targets visible scalp aging, strengthens the scalp barrier, and immediately hydrates to support softer, healthy-looking hair.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Visible Signs of Aging- Flaky, Dry Scalp- Scalp BuildupKey Benefits: - Immediately hydrates and soothes the scalp- Strengthens and protects the scalp barrier and microbiome- Promotes soft, shiny, healthy-looking hairHighlighted Ingredients:- Olaplex Bond Building Technology: Relinks bonds to strengthen the scalp barrier.- Antioxidant-Rich Blend: Protects against damage that causes accelerated scalp aging.- Biome Barrier-Balancing Blend: Maintains a healthy scalp environment and optimal microbiome balance.Ingredient Callouts: Free of parabens, phthalates, and sulfates SLS & SLES. It is also vegan and cruelty-free.What Else You Need to Know: This first-of-its-kind, bond-building scalp serum strengthens the scalp barrier, balances the scalp microbiome, and targets visible scalp aging to set the foundation for a future of softer, healthy-looking hair. The serum is trichologist approved, dermatologist tested, and for all hair and scalp types.Clinical Results: In a consumer-perception study of 75 participants, results showed:- Visibly healthier and softer hair after 4 weeksIn a test, results showed:- Scalp is 5X more hydrated immediately after use- Clinically proven to repair and strengthen the scalp barrier and protect from accelerated scalp aging

International delivery

Shipping calculated at checkout

Returns & exchanges

Within 30 days of delivery

What it is: A weightless scalp serum that targets visible scalp aging, strengthens the scalp barrier, and immediately hydrates to support softer, healthy-looking hair.Hair Texture: Straight, Wavy, Curly, and CoilyHair Type: Fine, Medium, and ThickHair Concerns:- Visible Signs of Aging- Flaky, Dry Scalp- Scalp BuildupKey Benefits: - Immediately hydrates and soothes the scalp- Strengthens and protects the scalp barrier and microbiome- Promotes soft, shiny, healthy-looking hairHighlighted Ingredients:- Olaplex Bond Building Technology: Relinks bonds to strengthen the scalp barrier.- Antioxidant-Rich Blend: Protects against damage that causes accelerated scalp aging.- Biome Barrier-Balancing Blend: Maintains a healthy scalp environment and optimal microbiome balance.Ingredient Callouts: Free of parabens, phthalates, and sulfates SLS & SLES. It is also vegan and cruelty-free.What Else You Need to Know: This first-of-its-kind, bond-building scalp serum strengthens the scalp barrier, balances the scalp microbiome, and targets visible scalp aging to set the foundation for a future of softer, healthy-looking hair. The serum is trichologist approved, dermatologist tested, and for all hair and scalp types.Clinical Results: In a consumer-perception study of 75 participants, results showed:- Visibly healthier and softer hair after 4 weeksIn a test, results showed:- Scalp is 5X more hydrated immediately after use- Clinically proven to repair and strengthen the scalp barrier and protect from accelerated scalp aging

Customer reviews

1.0
verified purchase

I had a sample of this in the trial size set and the reviews don't lie - this smells SO SO bad. Like a pile of dirty socks. I'm so glad I smelled it before I put it on my scalp lol. Nothing is worth the scent of this. I cannot believe this made it to market.

8/20/2026
1.0
verified purchase
STINKS

Honestly I couldn’t tell you if this product works or not because after the first use I got rid of it! This is the nastiest smelling product on this earth! Think dirty socks and vomit beanboozled! What sucks is that you need to put it in clean hair… so after you wash, it stinks again! in

7/15/2026
1.0
verified purchase
Nope!

Omg this smell. Smells like musty throw up ugh horrible… first day trying it I don’t even think can keep on using this too see any kind of results

7/11/2026
5.0
verified purchase
Actually helpful.

I definitely see the difference in my scalp. It is more hydrated and doesn't get dry or flaky. It was worth the investment. It does have a bit of a smell to it but for what it does, I don't mind. I just use other product that smells good after.

6/2/2026
5.0
verified purchase
The smell will fade

I absolutely love this. It made my hair shiny instantly. The smell is different but just remember that fragrance isn’t good for the skin/scalp. Fragrance in general is bad for us.I use this on my scalp and then to the oribe resilience leave in and my hair is left smelling lovely. leave leave in

5/26/2026
1.0
verified purchase
Awful scent

It's entirely possible that this works very well, but I can't leave it on my hair long enough to find out because of how bad it smells. Had to check other reviews to see if mine had gone bad or if it was supposed to smell this terrible.

5/7/2026
5.0
verified purchase
Yep. Great product for dry scalp!

Love this product! It’s so soothing for a dry scalp! It has a fermented smell due to the probiotics in the formula, which I prefer over strongly perfumed! The smell is only noticeable when applying and quickly dissipates. Love this one!!

5/5/2026
2.0
verified purchase
WORKS— BUT AT WHAT COST???

Take my word on this as someone who normally doesn’t mind conventionally “bad” smells…. this product smells awful. The scent is a bizarre mix of acrylic paint and a musty, almost geriatric odor, and the worst part is that it lingers for nearly 24 hours. It’s not a quick “apply and it fades” situation… it sticks around. You can try to mask it with nice-smelling oils, but since this product is only effective if you’re using it daily or every other day, the trade-off just isn’t worth it. You basically end up walking around with the faint smell of this stuff on a consistent basis. Even if you’re single, imagine this: someone you find attractive accidentally getting a whiff of your scalp with this in… Your hair is actually freshly washed, completely clean… but because you applied this serum, it smells like acrylic paint and nursing home air. Completely unacceptable in 2026. In my experience, I’ve gotten the same — if not better — results with minoxidil, so I won’t be repurchasing this. I’m going to try a peptide serum instead for hydration. I want to add that the bottle is tiny for the price, and considering the awful smell and the amount you get, it’s simply not worth it. This formulation honestly feels lazy. Simply unacceptable.

3/11/2026
1.0
verified purchase
horrible smell

smells horrible!!!! worst smelling product like stale eggs and rotting fruit.

3/2/2026
3.0
verified purchase
weird smell but goes away once dry

application is easy, and the formula absorbs well. it has a distinct smell thats honestly kinda bad but it goes away once it absorbs all the way. hopefully it helps me grow my hair fuller and faster!

12/31/2025