Made for anyone with chemically straightened hair — Japanese straightening, Brazilian/keratin treatments, or standard relaxing — who wants to extend how long the treatment holds. It's a consumer retail shampoo (also used in salons), not restricted to professional-only sale, but it's formulated narrowly around straightened hair rather than as a general everyday shampoo.

The reason to use a straightening-specific shampoo instead of a regular one is that ordinary sulfate and salt-based cleansers gradually strip the smoothing treatment and shorten how long it lasts — this formula is built around avoiding both, so it's meant to slow that fade while still leaving hair clean, soft and shiny between treatments.

Use 2-3 times a week, or as needed, on chemically straightened or keratin-treated hair. It's designed to be followed by the Black Caviar Total Repair Mask for the brand's full repair routine.

• Salt- and sulfate-free: engineered specifically not to strip or fade a straightening treatment the way a standard sulfate shampoo can.
• pH-balanced: formulated for scalp acidity so it cleanses without disrupting the straightening bond.
• System product: designed to prep hair for the companion Black Caviar Total Repair Mask, so it's most effective paired with the rest of the line rather than used alone.
• Narrow use case: built specifically for chemically straightened hair, so it isn't positioned as an everyday shampoo for color-only or untreated hair.
• Ingredient transparency: Mon Platin doesn't publish a full ingredient list on its official channels, so claims beyond salt-free/sulfate-free and the caviar/silk protein additives can't be independently verified.