Name: Strengthen Concentrated Shampoo
Brand: The Rootist
SKU: the-rootist-strengthen-concentrated-shampoo
Rating: 4.5 (264 reviews)

The Rootist

Made with no added water, this less wasteful, more powerful, sulfate-free shampoo gently cleanses and strengthens weak, damaged hair. Designed for sustainability and efficacy, this ultra-concentrated formula is free of added water and infused with multivitamin superfood Rootbiomic Ferment. Because it&#x27;s not watered down, you only need to use half your normal shampoo amount which makes this bottle equivalent to one 2x its size.

3b - Bouncy ringlets

2a - Loose, stretched S-waves

2c - Distinct S-waves with some spiral curls

1b - Straight with more volume

1a - Stick straight

3a - Big, loose spiral curls

1c - Straight with body wave and a couple of visible S-waves, usually the neck or temples

2b - Shorter, more distinct S-waves

3c - Tight corkscrew curls

4a - Tightly coiled S-curls

4b - Tightly coiled, Z pattern curls

4c - Mostly Z-patterned, tightly kinked and less defined curls

I’ve been testing the root ist Strengthen Concentrated Shampoo for six weeks now, and it has truly become a staple in my routine. The product claims to be ultra-concentrated, meaning you only need to use half the amount of a typical shampoo, and I can confirm that it absolutely delivers on this promise. The shampoo’s concentrated formula makes it last much longer, which is a huge bonus for both personal and professional use. For me, as a stylist, efficiency and performance are key, and this shampoo checks both boxes. What’s even more impressive is the rich, luxurious lather it creates, all without sulfates—a big win, especially for those looking to avoid harsh ingredients.From a stylist’s perspective, the performance of this shampoo is exceptional. Many of my clients struggle with dryness, frizz, and maintaining moisture, especially those with color-treated or textured hair. I’ve found that this shampoo cleanses thoroughly without drying out the hair, which is critical for preserving both moisture and color. Clients who are prone to frizz or damage have seen a noticeable improvement after using this product—it helps smooth the hair’s cuticle, resulting in less frizz, more shine, and an overall healthier look.What’s particularly great about this shampoo is its versatility. I work with a variety of hair types, from fine and straight to textured and curly, and this product has been a game-changer across the board. For clients with thicker or coarser hair, it helps retain moisture while strengthening the strands, which is essential in maintaining hair health over time. For those with finer hair, it provides a deep clean without weighing the hair down, leaving it light, bouncy, and full of life. The ultra-concentrated formula means I don’t have to use as much product, which is cost-effective in the salon setting and gives me more control when applying it during washes.Another standout feature is how it works with clients who use heat styling tools regularly. The Strengthen Shampoo helps fortify the hair, improving its resilience against heat damage, which is a concern for many of my clients who blow-dry, straighten, or curl their hair frequently. Paired with its ability to enhance shine and strength, I’ve seen great results when preparing clients’ hair for styling.As a professional, I need products that consistently perform while being an efficient, cost-effective investment, and the root ist Strengthen Concentrated Shampoo is exactly that. Whether you’re looking to reduce frizz, boost moisture, or simply improve the overall strength of your hair, this shampoo is well worth the investment. I highly recommend it for both personal use and salon professionals alike.

Makeup Artist (Freelance)

Cosmetologist- Hair Focus

Expert

Content creator tier one

I received this product complimentary in exchange of my honest review and I definitely can say that I love this product it is a small bottle and I have extremely long hair but it definitely goes a long way I just had to put less then I usually do and add a little bit of water and it really makes alot of shampoo it does have a scent but its not a usual sweet scent I can't really put my finger on it but there's a slight scent it does feel very thick as well and it washes out very easily it really helps with getting rid of dandruff and oiliness in my hair and my hair is also very very soft after it gets rid of tangles id definitely buy again and would forsure recommend as well its worth it and so good for my hair my hair looks so shiny after using

Enthusiast

i really enjoyed the rootist shampoo and conditioner duo! the shampoo smells amazing and fresh and left my hair feeling clean, but not stripped which is what my dry ends crave. i love the concept of a concentrated shampoo because the bottle is small enough to travel with, yet it lasts forever because you only need a small amount that lathers up beautifully! i noticed an increase of moisture and shine in my hair after using this system together, i can’t rave enough about the clean smell of it!

Strengthen Concentrated Shampoo

The Rootist Strengthen Concentrated Shampoo