10 Best Keratin Shampoos 2025 in the United States

Pureology Strength Cure Shampoo is designed to cater to adults with damaged and color-treated hair. One of its standout features is its ability to repair hair damage by up to 97%, making it a solid choice for anyone struggling with split ends or the effects of heat styling. The formula is enriched with plant-based protein Keravis, which strengthens hair strands, and Astaxanthin, an antioxidant that helps heal and protect the hair from further damage. Its sulfate-free and paraben-free composition makes it suitable for those with color-treated hair, ensuring your color remains vibrant while also getting the nourishment it needs.

The scent is another appealing aspect, featuring a refreshing blend of water flower, raspberry, and peach, which can make your hair care routine feel more enjoyable. This shampoo's moisturizing properties are effective, as it cleanses without overly stripping the hair of its natural oils, helping to soften and smoothen the hair, which is essential for frizz control.

If you're considering daily use, it's worth noting that while the shampoo is rich and effective, some may find it a bit heavy for frequent application, especially if they have fine or oily hair. Additionally, the price point can be on the higher side compared to typical shampoos, which may not appeal to budget-conscious shoppers. Those with extremely oily scalps might need to follow up with a clarifying shampoo occasionally to avoid any buildup.

The Keratin Complex Color Care Smoothing Shampoo & Conditioner Duo is designed for anyone with color-treated hair, but it works well on all hair types. One of its strengths is that it not only protects your hair color but also hydrates and adds shine, which helps keep your hair looking vibrant. The formula includes natural ingredients like lavender oil, which can encourage hair growth, and wheat and oat proteins that help make your hair stronger and more resistant to heat styling and damage from the sun or daily wear. It’s also free of parabens, which is a bonus if you want to avoid certain chemicals.

The product is creamy in texture, which usually means it’s gentle and moisturizing. While it doesn’t specifically mention heavy frizz control, the smoothing benefits suggest it can help manage frizz to some degree. The scent includes lavender, which many find pleasant and calming but may not suit everyone’s preference. This duo is gentle enough to be used regularly, making it a good choice for daily or frequent use without stripping your hair.

A limitation is that it doesn’t target very specific hair concerns like extreme dryness or intense frizz, so if those are your main issues, you might need a more specialized product. This shampoo and conditioner set is a solid option if you want to maintain color, add moisture, and gently smooth your hair with natural ingredients, especially if you prefer a paraben-free formula.

The Kerastase Premiere Sulfate-Free Hair Repair Shampoo is designed to cater to damaged hair types, making it a good fit for those struggling with breakage and persistent hair damage. The inclusion of citric acid effectively removes calcium build-up, and glycine helps reconnect broken keratin links, which should help reduce breakage significantly.

This formula promises to restore up to 99% of the hair's original strength and is said to make hair 73% shinier and twice as smooth after continuous use. It's designed for dry hair, offering intense hydration and moisturization, which is beneficial for those dealing with dryness and damage. The shampoo is sulfate-free, which is a plus for those who prefer gentler cleansing agents that won't strip hair of its natural oils. Additionally, the dual-action repair system strengthens hair from the inside out.

A potential downside could be the required use of the Premier Pre-Shampoo Treatment for optimal results, which means an additional purchase. Also, the product volume is relatively small at 8.5 fluid ounces, which might not last long for those who wash their hair frequently. The shampoo has a pleasant scent, which many users appreciate, but it’s always subjective. In summary, it's a solid choice for anyone looking to repair and strengthen damaged hair, with the added benefit of being sulfate-free. Just be aware of the additional steps and products recommended for best results.