Brush-on powders are like makeup for your hair: Simply use the small, targeted brush to apply a dose of the powder, which resembles something like a pressed eye-shadow powder. The formula (free of parabens, gluten, and a few other items), sticks to hair through sweat, weather, and movement, so you won't be shedding color as the day goes on. Another bonus? These are great for filling in thinning hairlines. 

Root Touch Up, Madison Reed ($30)

This natural-leaning brand is a favorite among beauty folk, and their touch-up sprays are no exception. The sprays use microfine spritz to evenly distribute pigments that dry down to a subtle satin finish (read: shiny but not too much). The formula also contains vitamin E, tangerine, and orange peel oils to enhance shine and hair health. 

Retouch Me, Kevin.Murphy ($29)

This handy double-sided stick comes in four shades (red, blonde, brunette, and black) and colors in something like a crayon. Use the oil-based blend on the hair and roots, then flip the pen over to reveal a blending brush. With the brush you can work the formula into your hair, creating a soft and subtle look. 

Root Touch Up Stick, dpHue ($28)

Another powder, ColorWow's option comes with a double-sided brush. One, denser and smaller, you can use to really target small patches; the other is wider, rounder, and fluffier, which is ideal for blending out over larger areas. The powder contains no waxes, dyes, or parabens; is water-resistant; but then comes out with a good rinse and shampoo. 

Root Cover Up, ColorWow ($34.50)

Sprays are so easy to use and able to cover more area in less time. Not to mention, this product acts something like a hair care item, too, as it's loaded with biotin, tapioca starch (to absorb oil), and pearl extract for shine. This option is also free of parabens, petrolatum, and mineral oil. 

Bright Shadow Root Touch Up Spray, R+Co ($26)

This mineral-based option uses rich, natural mineral pigments to do its work. These are then infused with argan oil to condition dry strands while covering up grays. Use this if you find yourself with a sensitive scalp, as it's fragrance and hypoallergenic free. 

Gray Root Concealer, Mineral Fusion ($12.99)

A step up from the rest, this temporary dye semi-permanently covers up roots between appointments—or tends to the first signs of grays (perhaps you're not ready to commit to a full dye job at the first sight of a silver strand). Composed of 92% natural-origin ingredients and pure pigments, it is made without ammonia. Its gentle formula, enriched with protective plant extracts, immediately covers grays by surrounding the hair, then washes out evenly over shampoos. 

Temporary Color Gel, Christophe Robin ($35)