Olaplex No. 4 Bond Maintenance Shampoo: a Guru Score of 79%

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. Aanchal MD

3.49M subs

✓Yay

"For shampoos, you can use the Olaplex No. 4 Bond Maintenance Shampoo."

Tea with MD

115k subs

✓Yay

"My first pick in the splurge category is the Olaplex No. 4 Bond Maintenance Shampoo. This one hydrates beautifully and softens without weighing your hair down. Their key ingredient is this long molecule bis aminopropyl diglycol daliate which is their patented bond repair technology. It also has panthenol which I've been loving recently for skin barrier repair. So it helps with repair of your scalp skin barrier. Glycerin which is a great humectant helping your scalp hold on to moisture."

All 2 takes from Tea with MD

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"My first pick in the splurge category is the Olaplex No. 4 Bond Maintenance Shampoo. This one hydrates beautifully and softens without weighing your hair down. Their key ingredient is this long molecule bis aminopropyl diglycol daliate which is their patented bond repair technology. It also has panthenol which I've been loving recently for skin barrier repair. So it helps with repair of your scalp skin barrier. Glycerin which is a great humectant helping your scalp hold on to moisture."

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"We have millions of these bonds all over our hair. It's what gives our hair its shape, its structure, its integrity. And when our hair is damaged by combing it, pulling it, like mechanical stress, by UV damage, by heat damage, like if you're using a curling iron or a hair straightener on high without any type of heat protectant, what happens to your hair is the disulfide bond gets broken."

Alexandra Anele

1.45M subs

✓Yay

"I think it's a really good basic go-to shampoo, pretty much my go-to shampoo if I'm not using my K18 one. [...] Bond repair is really great in general if you're dying your hair. I don't have a ton to say about it because [...] a shampoo isn't one of those things where you use it and you're like oh my god, but I trust them mostly because Sarah, who does my hair color, always uses Olaplex, and bonds are important for your hair."

All 3 takes from Alexandra Anele

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"I feel like I shouldn't like it that much but I do, I like it a lot. I can't explain it. I mix this Bond Maintenance Shampoo together with their purple shampoo when I wash my hair. [...] I don't know if that's how you're supposed to do it but that's what I do. I [...] mix kind of equal parts, maybe a little bit less purple shampoo than this to get like a slightly more vanilla shade for my hair. I love this, I think it's great."

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"Since I've been growing my hair out I've started to realize how incredibly spoiled I was because every time we bleached my hair I had cut the majority of it off. Now that it's growing I'm realizing like oh I have to actually use heat protection. So the Olaplex Bond Maintenance, I think I've probably talked about this, the bond maintenance has become like an absolute staple in my collection."

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"I think it's a really good basic go-to shampoo, pretty much my go-to shampoo if I'm not using my K18 one. [...] Bond repair is really great in general if you're dying your hair. I don't have a ton to say about it because [...] a shampoo isn't one of those things where you use it and you're like oh my god, but I trust them mostly because Sarah, who does my hair color, always uses Olaplex, and bonds are important for your hair."

James Welsh

1.58M subs

✓Yay

"When I worked in a salon we were an Olaplex salon we actually would not bleach hair or touch damaged hair without using Olaplex it became a must-have because of how effective these in salon versions were people loved it they were buying it out of the salon."

HotandFlashy

1.23M subs

✓Yay

"I never take anything out of it I keep everything in it that I'm going to take on my trip there's my Olaplex shampoo."

All 2 takes from HotandFlashy

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"I never take anything out of it I keep everything in it that I'm going to take on my trip there's my Olaplex shampoo."

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"I did buy a little sampler pack that had a little mini shampoo and a mini conditioner and I've really been liking them, but I gotta say when I use them three or four washes in a row it starts to weigh my hair down and make it really flat. I need to shampoo with something else in the meantime."

Dr Dray

2.69M subs

✓Mixed

"I tried the Olaplex shampoo and while I liked it, I really didn't find that my hair was any different in comparison to using that Pantene shampoo."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Humectants and emollients

Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.

Source: DermNet

Frequently asked.

What is Olaplex No. 4 Bond Maintenance Shampoo?

A daily shampoo from the Olaplex haircare line, designed to help maintain the hair bonds that bleaching and heat styling can weaken.

Is Olaplex No. 4 Bond Maintenance Shampoo worth it?

Mostly yes. 5 of the 6 gurus who reviewed it give it their stamp of approval, for a Guru Score of 79%.

What is Olaplex No. 4 Bond Maintenance Shampoo's Guru Score?

Olaplex No. 4 Bond Maintenance Shampoo holds a Guru Score of 79%. That is our read on how warmly the experts talk about it, based on the verdicts of 6 expert reviewers we have collected.