Applicator (1) for topical application of an acidic liquid (30), the applicator comprising a container (3) containing said acidic liquid, the container comprising an opening (31) in fluid contact with a nib (2) for a controlled release of the acidic liquid, wherein the nib comprises a plurality of fibers (20) and an adhesive material (21) adhering the fibers. A kit of parts (100) for topical application of an acidic liquid, the kit of parts comprising (a) a liquid release unit (40) comprising a nib for a controlled release of the acidic liquid, and (b) a container unit (50) comprising a container configured to contain the acidic liquid, wherein the container unit further comprises a liquid release element for application of the acidic liquid to the nib, wherein the nib comprises a plurality of fibers and an adhesive material adhering the fibers.
