This was the era of Sun In, a spray-in hair lightener whose bleach-free formula uses lemon juice to create beachy highlights (not to mention spending entire summers laying out for a deep tan).

Like hair glosses, these products can help lighten and enhance blonde hair, whether it's color-treated or natural. Some hair lighteners are also formulated for use on brunette hair, but you may ...

However, if you constantly dye your hair lighter with bleach, it may cause dryness, damage, and split ends. So, while it's the easiest way to lift color and lighten strands, it's always a good ...