10 Best Hair Smoothing Products 2025 in the United States

The Redken One United Leave In Conditioner is a versatile hair-smoothing product designed for all hair types. It combines a leave-in conditioner and heat protectant spray, making it a practical choice for those who frequently blow-dry or heat style their hair. The product is enriched with nourishing coconut oil, which helps maintain hair vibrancy and smooths frizz, a significant advantage for anyone dealing with dry or porous hair. It's free from sulfates and parabens, making it a safer option for those concerned about harsh chemicals.

Users can apply it in multiple ways: as a rinse-out treatment for lightweight conditioning, a leave-in on damp hair for added strength, or with other styling products for enhanced softness and manageability. The heat protection feature is robust, safeguarding hair up to 450 degrees Fahrenheit, which is ideal for intensive styling routines. However, it may not provide a strong hold and finish, which could be a drawback for those looking for a more defined or styled look.

The liquid spray form makes it easy to apply, but it might be less convenient for those who prefer cream or serum textures. This product is a solid choice for anyone looking for a comprehensive hair treatment that detangles, nourishes, and protects from heat, though it might not be the best for achieving a firm hold or specific styled finish.

Redken All Soft Shampoo is a nourishing product designed specifically for dry hair. Its main ingredient, argan oil, is known for its hydrating and softening properties, making it suitable for those with dry or brittle hair. The shampoo aims to deeply moisturize, hydrate, and add shine to the hair, making it silky soft and manageable. It is also safe for color-treated hair, which is a significant advantage for those who dye their hair regularly.

The product is part of the All Soft Collection, which includes other items aimed at restoring and softening hair, ensuring a comprehensive hair care routine when used together. The suggested use is simple: apply to wet hair, lather, and rinse, making it easy for daily use without any complex steps. One of the shampoo's notable strengths is its ability to condition hair 15 times more effectively when paired with the Argan Oil Conditioner.

However, it's important to note that this might imply additional cost if one wants to achieve the maximum benefit by purchasing the entire set. Also, while the product is suitable for fine to medium hair types, those with very thick or coarse hair might not experience the same level of effectiveness. The scent of argan oil could be a plus for some users, but it might not appeal to everyone. Redken All Soft Shampoo is a good option for individuals with dry, color-treated hair looking for a product that offers deep hydration and a silky finish.

The KERASTASE NEW Elixir Ultime Refillable Hair Oil is designed to smooth frizz and add shine to all hair types. Key ingredients include Wild Camellia, which not only nourishes but also provides heat protection for your hair. This makes it suitable if you frequently use heat-styling tools. The product promises 92% more shine, up to ten times smoother and stronger hair compared to using a non-conditioning shampoo, which is particularly appealing if your hair tends to be dry or unruly.

The lightweight formula ensures that your hair is left soft and not weighed down. For application, simply use one or two pumps on the mid-lengths and ends of your hair whenever you need extra shine during your styling routine. The refillable design and the use of 30% recycled glass for the bottle demonstrate a commitment to sustainability.

However, the 30-milliliter volume might feel limited for those with longer or thicker hair, requiring frequent repurchases. The product's camellia scent is pleasant but might not suit those who prefer fragrance-free options. Additionally, as a high-end product, it could be on the pricier side compared to other hair oils. This hair oil is ideal for someone looking for a premium product that offers both heat protection and significant improvements in hair shine and smoothness.