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Once your hair is shoulder-length, it starts to look weighed down. Opt for a cut that hits between your chin and collarbone or even shorter, if you prefer! Fake a voluminous look on super-short hair by cutting the sides closer to your head and leaving the top a little longer. Style the top with a volumizing product and a round brush to give it lift. Layers can make your hair look thinner, especially if you opt for a style with a lot of layering. Instead, choose a bob or similar style with a strong, blunt line across the bottom to make your hair look fuller. Avoid blunt cuts that are done with a razor. These can cause your hair to look frizzy and can make it appear even thinner. If you don't mind coloring your hair, highlights can create a 3D effect, making your hair seem fuller. Lighter highlights should be closer to the top, while lowlights and your natural color should fall towards the bottom.
Cut your hair short or medium length for more bounce. Opt for a blunt cut for the most fullness. Get highlights to add dimension.