N° 4 Fine Bond Maintenance – Shampoo

I have very fine curly hair, so I was excited to try this version of the Olaplex shampoo—and I’m already impressed! After just one week, my hair feels noticeably fuller and way more hydrated. It leaves my hair feeling super clean and soft without weighing it down, which is so important for my hair type. My curls have been looking more defined and healthy too. Definitely a new staple for me.

Good option for volume

I bought this shampoo and the matching conditioner with my own money, was NOT gifted. For reference, I have fine, darkened color treated hair but a lot of it. My goals are scalp/roots oil control, volume, and protect from color fading. This shampoo was just ok. I will say my hair is relatively healthy so I wasn’t looking for anything to dramatically transform my hair. It is thick and difficult to spread around on the scalp and I probably overused the product in order for it to emulsify. I felt it left my scalp not completely clean yet kind of overdried my lengths/ends. I would have to definitely use a clarifying shampoo first if my hair was extremely greasy. That being said, it didn’t fade my color and the volume it gives is 10/10! My hair is bouncy and feel light and not weighed down. I do notice a little static/dryness but most volume aimed products will do that to help achieve that weightless feel. Overall I will finish my bottle with the conditioner but keep looking for my HG combo. If I ever decide to lighten/highlight my hair in the future, I would repurchase. Will also add the original olaplex no4/5 were always too heavy for my hair but I do love the no 8 hair mask.

Wanted to love but

This shampoo left my hair feeling extremely dried out. It was difficult to get a brush or comb through it, it felt stiff and snarled. After blow drying, my hair feels dry and looks frizzy. I have fine thin blonde hair. I did notice a little more volume but dryness and frizziness make it not worth it. I’m really not sure how this is getting such good reviews. I’ll go back to the regular 4 and 5 olaplex. I will be returning this.

Hair Transformation!

I have fine, fragile hair, and most shampoos either weigh it down, dry it out, or do absolutely nothing—but Olaplex No.4 Fine Bond Maintenance Shampoo is a total game-changer. It creates a rich, luxurious lather that deeply cleans without stripping or irritating my scalp. After each wash, my hair feels noticeably stronger, softer, and more manageable, without any heaviness or residue. It adds real volume to my fine hair, making it look and feel fuller, and gives a long-lasting, clean, refreshing sensation. Unlike other shampoos that leave buildup or make my hair limp, this one truly delivers. For the first time in a long time, I actually look forward to washing my hair. If your strands are delicate, fine, or easily damaged, I highly recommend giving this a try. This review was collected as part of a promotion.

My hair is a fan.

I am absolutely thrilled with Olaplex No. 4 Fine! This shampoo has truly transformed my hair. It gently cleanses and has a light, yet pleasant scent. My hair feels healthier, stronger and noticeably softer since I started using it. The shampoo leaves my hair with a beautiful shine and improved manageability. I actually have volume, too! It's definitely worth the investment for anyone seeking to improve their hair's overall health and appearance.

A MUST HAVE IN MY HAIR ROUTINE

I have been using this product for 7 days, and my hair feels rejuvenated, the shine and texture have never been this good. I loved how it lathered up in the shower, a little goes a long way. My hair and scalp feel hydrated and soft. This is a must in my hair routine, I highly recommend using this if your hair and scalp need some love.

Great lightweight shampoo!

This Olaplex shampoo works similarly to the original No. 4 in terms of its strengthening and reparative effects, but I found it to be noticeably gentler, especially on my curly, fine-textured hair. While Olaplex No. 4 can sometimes feel a bit heavy or stripping with frequent use, this version strikes a much better balance—it still delivers the same rich, creamy lather and luxurious, salon-quality scent, but without leaving my strands feeling overly cleansed or dry. I used it almost daily for an entire week, and my curls remained soft, bouncy, and well-defined without any signs of dryness or buildup. What stood out most was how light and voluminous my hair felt after each wash. Despite my hair being fine and prone to flatness, this shampoo gave me body and lift without sacrificing moisture. It also maintained the signature Olaplex bond-repairing benefits, which left my hair feeling stronger and more resilient. I would absolutely recommend this to anyone with curly or fine hair who wants a daily-use shampoo that repairs and nourishes without weighing down the hair or causing damage over time.