Search  for anything...
Olaplex

Olaplex Nº.4 Bond Maintenance™ Hair Strengthening Shampoo: Repairs Damage & Defend Against Future Breakage | Replenishes Hydration | For Coily, Curly, Straight, and Wavy

  • Based on 76,478 reviews
Condition: New
Checking for the best price...
$96.00 Why this price?

Buy Now, Pay Later

As low as $16.00 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Mar 13
Order within 7 hours and 46 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Size: 33.81 Fl Oz (Pack of 1)


Features

  • A highly concentrated, color-safe shampoo proven to reduce breakage and nourish hair leaving it smoother, shinier, and more manageable with every wash.
  • KEY BENEFITS Reduces breakage and strengthens hair Gently cleanses without stripping moisture Hydrates, smooths, nourishes, and detangles
  • Clinically Proven 90% smoother, better detangling, more conditioned* 49% reduction in breakage *When used as a system of No 3, No 4, and No 5.
  • INGREDIENTS Gentle Blend of Coconut Oil-Derived Surfactants Provides an easy, abundant lather that leaves the scalp and hair feeling hydrated.

Description

A highly moisturizing, reparative shampoo that leaves hair easy to manage, shiny and healthier with each use. N°4 is color-safe, sulfate-free, and proven to reduce breakage and strengthen all types of hair.

Product Dimensions ‏ : ‎ 19.69 x 19.69 x 11.02 inches; 2.2 Pounds


Item model number ‏ : ‎ 20142444


Department ‏ : ‎ womens


UPC ‏ : ‎


Manufacturer ‏ : ‎ Olaplex


Best Sellers Rank: #649 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #18 in Hair Shampoo


#18 in Hair Shampoo:


Customer Reviews: 4.6 4.6 out of 5 stars (78,178)


Item Form: Liquid


Hair Type: All, Chemically Treated, Coily, Color Treated, Curly, Damaged, Straight, Wavy


Scent Name: Unscented


Other Special Features of the Product: Moisturizing


Product Benefits: Reduces breakage & strengthens hair. Gently cleanses without stripping moisture. Hydrates, smooths, & detangles


Suitable Hair Color: All Hair Colors


Brand Name: Olaplex


Age Range Description: Adult


Global Trade Identification Number: 44


UPC: 850018802444


Manufacturer: Olaplex


Liquid Volume: 1 Liters


Number of Items: 1


Item Weight: 1000 Grams


Item Dimensions: 19.69 x 19.69 x 11.02 inches


Unit Count: 33.81 Fluid Ounces


Material Type Free: Formaldehyde Free, Paraben Free, Phthalate Free


Recommended Uses For Product: Dispense a coin-sized amount and apply to wet hair. Lather thoroughly and rinse well. Follow with No. 5 Bond Maintenance Conditioner.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Mar 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Clean, Soft & Strong Hair Every Wash! 💆♀️✨
Size: 250 mL / 8.5 Fl Oz
This Olaplex No. 4 Bond Maintenance Shampoo is legit — it cleans my hair really well without stripping moisture, and leaves it feeling noticeably softer and stronger after each wash. It lathers nicely and rinses out easily, and over time I’ve seen way less breakage and frizz. Perfect if you’re coloring or heat‑styling often and want a shampoo that helps repair and protect your strands. Great everyday pick that actually makes a difference! 🧴💧 ... show more
Reviewed in the United States on January 9, 2026 by Sue Simmer
    • Great shampoo highly recommended
Size: 250 mL / 8.5 Fl Oz
Excellent shampoo for over processed hair. My hair stylist uses this shampoo in her salon. So I now use to maintain my hair. I color my hair every 8 weeks so this shampoo is a must. This shampoo will not strip your color. Also keeps my hair from drying out or feeling like straw. I highly recommend this product also I use the conditioner to add more softness and protection when applying products and blow drying my hair. ... show more
Reviewed in the United States on March 2, 2026 by Sasha
    • Fantastic Shampoo That Restores and Strengthens Hair
Size: 250 mL / 8.5 Fl Oz
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. ... show more
Reviewed in the United States on September 2, 2025 by Merlyn Samantha
    • Best product!
Size: 250 mL / 8.5 Fl Oz
I have heavily treated hair. Been coloring, perm, bleach, hot irons, etc for past 35 yrs. My hair can be dry, and frizzy. Now my hair seems quenched, and healthy. I use this product every 2-3 days. One small bottle lasts for 13 months. My hair is thick, and past my shoulders. A dab size of a nickel, them emulsify it in your hands vigorously till it covers your hands in a layer of white creaminess. Apply to hair and you will notice how much it covers. I leave it in my hair for a good 10+ minutes while I shave. I never need to use conditioner when using this product. I do use a leave in spray conditioner after I towel dry. My hair has never been healthier. ... show more
Reviewed in the United States on January 14, 2026 by Shoppersmarts
    • Quality products
Size: 17.75 Fl Oz (Pack of 1)
just started to use it for my oily hair. It made my hair look shine and soft
Reviewed in the United States on February 16, 2026 by Ally SP
    • Works great on frizz but does contain a lot of chemicals
Size: 250 mL / 8.5 Fl Oz
I’ve been using Olaplex No. 4 Bond Maintenance Shampoo for a few months (based on the recommendation of my hair stylist), and the results have been great! It has completely eliminated frizz, leaving my hair soft, smooth, and with a beautiful shine. I don't usually need to use a conditioner. That said, it’s worth noting that this shampoo does contain a LOT of ingredients, which might be a concern for some. Hence the 4 stars. Although upon further research I read " OLAPLEX is colour-safe, vegan, PH balanced and completely free from cruelty, DEA, aldehydes, formaldehyde, silicone, parabens, sulphates, phosphates, gluten and nuts." While it has worked wonders for my hair, those who prefer all-natural products might want to look elsewhere. I rotate it with a more natural shampoo. It’s also definitely on the pricey side, but a little goes a long way—you only need a very small amount so the bottle lasts much longer than expected. For me, the results have been worth every penny, and I’ll keep buying it. If you’re looking for a product that can tackle frizz and leave your hair looking its best, this one is worth trying! ... show more
Reviewed in the United States on January 19, 2025 by Makiki90
    • Great product!
Size: 3.3 Fl Oz (Pack of 1)
Got a small one to try! This shampoo is wonderful!!!! Takes just a drop of two to lathe up a LOT, smells great and rinses out easily. I coupled with my other Olex products. I would highly Recommend 👍
Reviewed in the United States on February 1, 2026 by Roberta K. Cumpston
    • The miracle you have been waiting for
Size: 250 mL / 8.5 Fl Oz
Review Image by Flippo Flippo
Review Image by Flippo Flippo
Review Image by Flippo Flippo
Review Image by Flippo Flippo
This is the holy grail of hair products. I am in my late 40s and have thin, dry, color damaged hair. My hair has been frizzy and I could only wear a ponytail and even in that it would become a tangled rat mess. I have tried 100s of dollars in products from Keratin hair treatments, Aveda products, Nexus, Pantene, Its a 10, blowouts EVERYTHING under the sun and nothing was working. I was ready to shave my head and start over. Then I found this and read soooo many reviews and said shoot all I have to lose is more money. So for my fine, thin, color/highlighted damaged hair I got the 4/5 shampoo and conditioner, weightless nourishing mask,#3 Bond building hair and the #9 Bond Protector. My hair is now SOOOFFFTTT, not frizzy even when it is humid out (I live in the desert) so not many humid days until recently. This is all in just 3 days!!! Day one I used the Shampoo and Hair mask with already noticeable difference, Day 2 and 3 I used only the shampoo and conditioner. I started with the small bottles at $30 each and I am so far very pleased and plan on once I run out getting the larger bottles. I will tell you that you need a very very small amount of shampoo, it goes a LONG ways. The conditioner maybe a nickel size amount as it also goes a long ways. When I first used this and was done rinsing my hair, it did not feel soft and I was thinking okay I am going to not have fun brushing my wet hair and it was going to be a waste of money. Boy I was fooled. even though my hair did not feel soft and slick after conditioning, the wet brush I use as always just glided thru my hair with such ease. I was like oh okay and then once I dried it I was completely shocked at the difference the first wash alone had made. There were no tangles and the entire day my hair has been smooth, soft and manageable! I say take your chance and get this product, I hope you are as happy as I am with this. I plan on tossing every other hair product away now that this is the only thing that genuinely works for my hair in a way that I have never experienced with a hair product before. ... show more
Reviewed in the United States on January 8, 2026 by Flippo Flippo

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...