R+Co Bright Shadows Root Touch-Up Spray, $26

Clip-in bangs like these—with longer layers to sweep back and blend with the natural hair—can conceal a receding hairline or thinning at the crown with very little weight and bulk. 

Just press the puff applicator into your roots like a stamp to build up color. It deposits long-wearing powder, which absorbs any oil that could otherwise break down the color pigments. Available in seven shades.

For thinning at the crown or all over, a top piece (also called a topper) is your best bet. If you have fine hair, a voluminous hairpiece can overwhelm, so look for one like this, with a small, thin base. Available in 29 shades.

For wispy spots where color sprays just won't cut it, this cult favorite contains magnetically charged keratin fibers that create a surprisingly realistic thickening effect. Available in nine shades.

Seven shades. Strengthening biotin. And, most importantly, actual dimension, not flat, matte coverage—so it doesn’t look fake. Spritz it on to cover patchy spots along your hairline and temples.

This versatile spritzer has a clever nozzle with two spray settings, which means you can cover a small, targeted area on your head or disperse color more broadly. Six shades, and color stays put till you wash.