Olaplex No. 4 Bond Maintenance Shampoo, Repairs, Strengthens, & Nourishes All Hair Types, Adds Shine & Leaves Hair Feeling Soft
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Size: 8.5 Fl Oz (Pack of 1)
Brand: Olaplex
Item Form: Liquid
Hair Type: All
Scent: Unscented
Age Range (Description): Adult
Is Discontinued By Manufacturer : No
Product Dimensions : 5.2 x 2.2 x 2.2 inches; 8.82 ounces
Item model number : 20140616
Department : womens
UPC :
Manufacturer : Olaplex
Best Sellers Rank: #675 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #15 in Hair Shampoo
#15 in Hair Shampoo:
Customer Reviews: 4.6 4.6 out of 5 stars 77,047 ratings
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View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 8.5 Fl Oz (Pack of 1)
This Olaplex shampoo is one of the best hair products I have ever used. From the first washes, I noticed my hair felt softer, stronger, and much healthier. It really helps repair damage and leaves my hair smooth and shiny without weighing it down. The formula is gentle but very effective, and a little bit goes a long way, so the bottle lasts longer than expected. I also appreciate that it doesn’t have a strong or unpleasant scent, and it works well even on color-treated hair. Overall, this shampoo is worth every penny. It has truly improved the look and feel of my hair, and I highly recommend it to anyone who wants healthier, stronger, and more beautiful hair.
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Reviewed in the United States on September 2, 2025 by Merlyn Samantha
Size: 8.5 Fl Oz (Pack of 1)
This shampoo lathers easily and creates plenty of bubbles. It keeps my hair feeling fresh longer and soft than other shampoos I’ve tried, and the scent is amazing too. I’d say the only downside is that the bottle is a bit small for the price.
Reviewed in the United States on September 16, 2025 by VincentH
Size: 8.5 Fl Oz (Pack of 1)
I was a little worried that this product would be too heavy for my thin, fine 3A curly hair, but the reviews of the Fine Hair version of this product were middling; I decided to take a risk and order this product, and I'm so glad I did! The combination of the olaplex bond maintenance shampoo and conditioner amped up the spring in my curls while restoring shine, softness, and manageability. Lather was excellent, and the conditioner felt like it really sank into my hair. The price is a little higher than the shampoo and conditioner I was using before, but I think that's ultimately not a problem because I need so little of this product for a wash, and my hair can go longer between washes. With my previous shampoo and conditioner, I could go three days between washes before my curls got irredeemably frizzy. With Olaplex, I went 5 days before I washed it at the end of the week, and my curls look even better after the second wash than they did after the first. This product is worth the money. I recommend.
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Reviewed in the United States on August 9, 2025 by DTLA Lady
Size: 8.5 Fl Oz (Pack of 1)
This shampoo is expensive but worth the money. It lathers well using only a small amount. It leaves hair soft and manageable. The scent is nice too.
Reviewed in the United States on October 6, 2025 by R
Size: 8.5 Fl Oz (Pack of 1)
I love this shampoo! I have fine & thin hair. I’m officially over 40 so i’ve got all sorts of hormones messing with the growth & texture, and I’ve been through the wringer with stress over the last few years. I was at a point where it was dry, brittle, breaking off, falling out & not really growing back. A little goes a long way with this product, so the bottle lasts a long time. I apply it twice every shower, both a dime size or less. And the second time it lathers way more, which is a clear indication that it’s truly cleaning the hair. After the first wash I could feel a huge difference. I’m about a year in now, and still love it! It doesn’t make my hair grow bath, that’s its own beast. But what I have left is far more healthy! Even with thin & fine hair it doesn’t get weighted down or greasy. If you’re on the fence, go for it. You won’t regret it… remember, a little goes a long way so it’s not as expensive as you think. It lasts.
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Reviewed in the United States on September 17, 2025 by Amanda G. Amanda G.
Size: 8.5 Fl Oz (Pack of 1)
So good! It literally takes a pea size amount of shampoo to clean your whole head! Smells so nice! It is very pricey for a small 8oz bottle! But other than that it’s so good!!
Reviewed in the United States on October 12, 2025 by Mackenzie Peterson
Size: 8.5 Fl Oz (Pack of 1)
I love what this shampoo does for my hair and how it makes my hair feel and behave. The scent is also very pleasant and barely noticeable. It's definitely up there in price, but after my hairdresser used it on my hair, I had to buy my own bottle. The good thing is that it really lathers up so you only need a tiny little bit of it each time. I think it will last longer than the other rather expensive shampoos I've been using, such as AG and others. My hair is fine, a bit past shoulder length, and I color it. I used to do highlights, but that became too damaging so I just went to a medium brown color and now only do the roots about every 6 weeks. Even this mild routine is hard on my fine and fragile hair, so I needed to try something different. I really do see a substantial difference in my hair with this shampoo, and it's not just hype. It makes my hair soft and not so flyaway, although since I also use the Olaplex 5 conditioner and #6 leave-in styler (which seems more like a leave-in conditioner), plus the #7 oil for the very ends, so all of these products together really make my hair behave and look better. Due to the price (ouch!), I'm careful to not waste any of the products, but from what I'm seeing after about 6 to 7 weeks of use so far, they will last quite a long time. Highly recommended, and definitely better for me than anything else I've used.
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Reviewed in the United States on April 13, 2025 by CMCM
Size: 8.5 Fl Oz (Pack of 1)
Great shampoo and won’t strip the color out of your highlights. I do not use the conditioner however as it makes my hair feel like straw.
Reviewed in the United States on October 19, 2025 by HBmom