Index / Olaplex / No. 6 Bond Smoother
Olaplex

No. 6 Bond Smoother.

Olaplex
No. 6 Bond Smoother

About this product

A leave-in serum designed to strengthen hair and protect against split ends and damage.

Guru Score

85%

Yay

5 experts · Moderate agreement
5Gurus
5Yay
0Mixed
0Nay

What the gurus are saying

This leave-in serum strengthens hair and helps resist split ends and damage between trims, earning particularly strong praise from people with bleached or heavily colored hair. A single pump applied to damp hair before blow-drying covers what's needed, and the concentrated formula is potent enough that one 100ml bottle lasts close to a year for most users.
Synthesized from 5 expert reviews · most recent take February 2026

Where to buy

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More from Olaplex 10 products · Guru Score 88% → How it works Independent by design. Every take comes from a creator we have no relationship with. We do not ask anyone to review, and affiliate links never move a score.

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored
Dr. Jenny Liu
Dr. Jenny Liu
321k subs
✓Yay
"It's almost like a leave-in conditioner, and absolutely been loving it."
No BS Beauty
No BS Beauty
89k subs
✓Yay
"I've had good luck with [Olaplex] in the past uh I really enjoy"
AliceintheRabbitHole
AliceintheRabbitHole
59k subs
✓Yay
"I love Olaplex, it works really well for me. I have bleached my hair a lot and Olaplex works for me. I know it's a controversial brand, but it works for me."
Dr. Somji Skin
Dr. Somji Skin
359k subs
✓Yay
"She's going to use [Olaplex] number six which is uh essentially going to help colored hairs um so he's got a lot of essential um ingredients for not only kind of hair Health but also scalp Health"
Kelly Driscoll
Kelly Driscoll
90k subs
✓Yay
"I'm finishing off with the Olaplex No. 6 Bond Smoother."
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All 5 takes from Kelly Driscoll
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"I don't think I've ever named Olaplex a favorite, but it is really a favorite. This is a five out of five hair care product for me. I think it really helps to strengthen my hair, helps to keep it in really good shape. I think it helps resist some split ends and damage on my hair in between trims. I really like it. It's about $30, you get 100 ml, this bottle lasts forever for me. I don't wash my hair a ton, so this actually usually lasts me close to a year, honestly. So pretty decent investment, I think. Personally, just use one pump."
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"I'm finishing off with the Olaplex No. 6 Bond Smoother."
Filming Routine | Do Skincare, Hair and Makeup With Me!
"I use this all for quite a few years you've seen me use this before"
My Go-To Hair Care Routine
"This is the [Olaplex] number six Bond smoother serum and I do this um every time that I wash my hair when it is damp I will apply this to my hair um so this is another product that helps to strengthen the hair"
Slow Morning, Late Summer Skincare Routine
"I use a pump of the [Olaplex] number six Bond smoother serum for my hair before I blow dry it"

Frequently asked.

What is Olaplex No. 6 Bond Smoother?

A leave-in serum designed to strengthen hair and protect against split ends and damage.

Is Olaplex No. 6 Bond Smoother worth it?

Yes. All 5 gurus who reviewed it give it their stamp of approval, for a Guru Score of 85%.

What is Olaplex No. 6 Bond Smoother's Guru Score?

Olaplex No. 6 Bond Smoother holds a Guru Score of 85%. That is our read on how warmly the experts talk about it, based on the verdicts of 5 expert reviewers we have collected.

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Olaplex No. 6 Bond Smoother: a Guru Score of 85% from 5 experts on The Guru Index

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