This set suits anyone with color-treated hair — full color, balayage, or highlights — who wants a coordinated aftercare routine rather than mixing shampoo, conditioner, and styling products from different lines.

It also works well as a gift or as a first try of the Color Extend Magnetics system, since it includes full-size shampoo and conditioner plus a full-size One United spray rather than samples.

The advantage of using the shampoo, conditioner, and One United together is that they're built as one acidic system: the pH-balanced shampoo and conditioner are designed to help keep the cuticle smooth after color processing, and One United reinforces that with heat protection and frizz control — addressing fading, dullness, and manageability from more than one angle.

Use the set as a three-step routine on color-treated hair, in place of a regular shampoo/conditioner/styling-spray combination.

• Wet hair and apply the Shampoo, massaging into the scalp and through the lengths, then rinse.
• Follow with the Conditioner, focusing on mid-lengths and ends, leave on briefly, then rinse.
• On towel-dried or dry hair, mist One United a few inches from the hair, focusing on the ends, then comb through and style as usual.

Pros

• Sulfate-free shampoo is gentler on freshly colored hair than a standard sulfate shampoo
• pH-balanced, acidic formula is designed to help keep the hair cuticle smooth, supporting color vibrancy
• One United adds heat protection and several styling benefits in one spray

Cons

• Relies on synthetic conditioning agents, silicones, and fragrance rather than natural ingredients
• Doesn't address scalp conditions like dandruff or sensitivity — it's a color-care system, not a scalp-care one
• As a fixed set, you can't swap in a different size if you run out of one component before the others