Microneedle array and method for producing the same

A method of producing a microneedle array, the method comprising:

• a preparation step of preparing a foundation that is insoluble or sparingly soluble with respect to a raw material liquid, the foundation including a plurality of frustum-shaped protrusions or a plurality of columnar protrusions on a first main surface thereof;
• an injection step of injecting a predetermined amount of the raw material liquid into each cone-shaped recess of a mold having a plurality of cone-shaped recesses, the predetermined amount being less than a volume of the cone-shaped recess, and filling a part of each of the plurality of cone-shaped recesses with the raw material liquid;
• a tip forming step of stacking the foundation prepared in the preparation step before the tip forming step on the mold, mating the plurality of frustum-shaped protrusions or columnar protrusions with the plurality of cone-shaped recesses that are shaped to match the plurality of frustum-shaped protrusions or columnar protrusions of the foundation by the filling in the injection step, drying the raw material liquid in the plurality of cone-shaped recesses after stacking the foundation on the mold thereby fixing a plurality of cone-shaped tips that are dissolvable in an inner part of skin to a tip surface of each of the plurality of frustum-shaped protrusions or columnar protrusions;
• and
• a mold release step of removing the foundation from the mold, and pulling out a microneedle array in which the cone-shaped tips are fixed to each of the frustum-shaped protrusions or the columnar protrusions of the foundation and the cone-shaped tips are formed at a position a predetermined height away from the first main surface of the foundation.