This is a professional-line retail treatment from Schwarzkopf Professional's BC Bonacure range, aimed at people with dry, moisture-depleted hair — including wavy or curly textures that tend to run dry and frizz easily. It's sold through salons and professional beauty distributors, but since it's a rinse-out treatment rather than a color or chemical service, it can be used by a stylist in-salon or by the client at home between visits.

What sets this apart from a standard conditioner is the specific focus on moisture: the hyaluronic acid derivative and Cell Perfector technology are aimed at hair that's lost hydration and elasticity, rather than trying to fix heat or chemical damage at the same time — for hair whose main problem is dryness rather than breakage, that narrower focus is the point.

• Apply to clean, damp, towel-dried hair, focusing on mid-lengths and ends
• Distribute evenly using fingers or a wide-tooth comb
• Leave on for 5-10 minutes
• Rinse thoroughly
• Use as a periodic treatment, generally once or twice a week, rather than with every shampoo

• Pros: Short 5-10 minute leave-on time fits into a normal wash, unlike an overnight or long-processing mask
• Pros: Built specifically around moisture replenishment (hyaluronic acid derivative) rather than being a general do-everything conditioner
• Pros: Works for both in-salon application and at-home client use without mixing or a developer
• Cons: Focused on hydration, not repair — hair that's damaged from heat, color, or chemical services may need one of Bonacure's repair-focused treatments instead
• Cons: Sold in a large 25.3 oz professional size, a bigger commitment than a small consumer conditioner
• Cons: A full ingredient list isn't widely published, which makes it harder for sensitive-scalp buyers to fully vet beforehand