Compositions, kits, systems and methods for sharpening cutting blades

A composition for use in sharpening blades of a hair cutting device, the composition comprising:

• a plurality of crystalline particles including:
• a main crystalline substance in amounts of from about 70% to about 99% by weight of the composition;
• at least one hardening agent in amounts of from about 0.05% to about 10% by weight of the composition;
• at least one anti-coalescing agent in amounts of from about 0.05% to about 10% by weight of the composition
• at least one dying agent for dying an exterior surface of the plurality of crystalline particles a color different from a natural color of the crystals, the at least one dying agent is present in amounts of from about 0.05% to about 10% by weight of the composition;
• wherein the hardness of the plurality of crystalline particles is from about 2.6 and 4.5 according to the Mohs hardness scale, and
• wherein a predetermined amount of the crystalline particles, an average initial diameter of the crystalline particles, and a hardness of the crystalline particles are such that the composition facilitates sharpening of the hair cutting device.