OLAPLEX reviews and discussion

4.1

77% of reviewers would recommend to a friend

Reviews mention

  • Transformative bond-repair technology
  • Highly concentrated, efficient formulas
  • Salon-fresh, clean fragrance
  • Standout purple toning performance
  • Occasional drying shampoo texture
  • Heavy residue on fine hair
  • Purple pigment staining risk
  • Inconsistent long-term results

OLAPLEX delivers noticeable repair and shine for many—especially bleached and color‑treated hair—with standouts like No. 3 Hair Perfector, No. 6 Bond Smoother, No. 7 Bonding Oil, and the 4P Purple Shampoo frequently praised in reviews. However, reviews also flag drawbacks: some experience dryness, heaviness or greasiness, residue, overly strong toning or staining from purple products, mixed or short‑lived results, and concerns about overuse or sensitivity, making OLAPLEX effective but not universally foolproof.

AI summary based on Thingtesting reviews

1,780 reviews and posts

  • I’ve been using Olaplex for years as I’ve been bleaching my hair for a very long time, and it was always the go-to recommendation by my hairstylist(s). It’s impossibly to deny that #3 is amazing…both in how it works and the way it smells, it’s all simply too overpriced for too little product. In addition, they don’t have the best formulas and there were some sketchy ingredients listed last time I checked (maybe a year ago). Because of that, I stopped purchasing it.

    Feedback

    Be upfront about the chemicals and formulas of your product. While I’ve never experienced any side effects, I’ve read that some are harmful for women who are pregnant or trying to conceive. If the formulas have been changed, I’d be willing to give them a try again…maybe. It’s hard to earn back a customer’s trust as a brand once you’ve lost it. Also, far too pricey!

  • The Nº.3 HAIR PERFECTOR has noticeably improved my hair drastically in just a few uses. I was very pleasantly surprised and can't wait to try their other products!

  • Both my hairstylist and I noticed a dryness in my hair after about a month of using their products. If you are going to purchase, make sure to not use the shampoo and conditioner every time you wash your hair. I’ve sense stopped using Olaplex.

  • I use two different Olaplex products. Both are equally great for helping to restore my hair into better shape. My hair gets dried out and this helps reduce the dryness and fizziness.

    Feedback

    It's expensive but worth the money.

  • The No3 is my go to hair mask - it makes my straight hair super smooth and silky. Perfect for winter time.

  • I’ve used almost all of their hair products. I’m really into clean beauty so their hair products are a staple for me.

  • I've only tried their new heat protectant but it's worked really well for me! My hair is actually much softer, silkier, shinier, and more manageable when I use it before drying my hair.

  • Expensive but effective. I’ve tried a gift set and it worked well for my hair. It’s proven to repair hair and the results showed for me. I haven’t repurchased because it’s expensive and I have a lot of hair, but if you have the budget for it then give it a try!

    Feedback

    K18 Hair Mask did the most for me, if you’re deciding between the two (Not sponsored at all, I’ve just tried both out and had better results from K18).

  • This stuff really does help repair hair. I've been using it for years and I've been able to grow it much longer than I used to be able to thanks to this.

    Feedback

    I do wish they had unscented or less scented options, some of the fragrances are way too heavy

  • I use their no 6 product after every shower. has improved overall hair health

  • I've been using the Olaplex line for two years now. The Bonding Oil and No.6 are my holy grails!

    Feedback

    The shampoo and conditioner are expensive and the quality is meh. There are definitely better repairing shampoos/conditioners out there.

  • I used this when my hair was bleached and it kept it healthy. Didn’t feel worth paying for after my hair grew out but I’d definitely use again if I had bleached or dyed hair.

  • I have loved almost every single product from this brand! I use the oil almost daily and number 3,5,6 weekly! They recently released 9 which is a lighter weight version of 6 that I am extremely excited to try!!

    Feedback

    My only qualm is that their shampoo (number 4) is not pH balanced so I do not use it anymore. I’ve seen them respond to feedback (creating the lightweight version of 6) and I’m hopeful they can adjust their formula to make the shampoo as healthy as possible for our hair and scalps

  • I've used the no. 3 and while it made my hair softer, I have doubts about the ingredients. You will only see effects if you keep using the product but it's not meant to have the effects last a long time

  • My hairdresser used the Olaplex no.7 bond hair oil, and I am obsessed with it! It is a lightweight oil to use after you dry your hair that adds shine without the greasy weight that sometimes occurs after applying oil. I also picked up no.6 to use on towel-dried hair before applying heat through a hair dryer. So far, my hair is looking less frizzy than before.

  • My Hairdresser recommended OLAPLEX for my thin hair. The product has helped with the thinning and overall health of my hair. I use is 2x a month and love it.

  • This is by far my favorite shampoo and conditioner duo. I've recommended it to many others and swear by it. My hair salon uses it, so sometimes I buy it directly from there or can easily purchase at Sephora.

  • I have struggled my whole life with frizzy hair, I have wavy hair. This was a life changer. I love #6 and #7. I usually mix these two products every morning and it makes my hair look great and gives a shine throughout the day.

  • I think some of their products are probably unnecessary (esp. for people with brown/undyed hair), but some of them are complete game changers for processed hair.

    Feedback

    The conditioner is a little thick for the type of bottle it comes in, and a different bottle could be more efficient. But not really worth it if it makes it more expensive.