The best toner for blonde hair can keep cool color ... This mask should also be applied to freshly washed hair—the brand recommends letting it sit for only five minutes before rinsing it out.

Promising review: "I don’t usually do reviews on products, but for this one I absolutely have to. I have 3c type hair and struggle with a lot a breakage, unmanageability, and moisture.

Those with color-damaged hair will by now know that once salon-exclusive brands like Olaplex are now readily available online — but that doesn’t change the fact they’re still pricey ...