Abstract: The present disclosure relates to semi-permanent tattoos, for example, compositions comprising semi-permanent colorants and semi-permanent colorant precursors that include derivatives of genipin and lawsone. In some embodiments, the composition comprises: a semi-permanent colorant present in an amount of about 10% to about 20% w/w of the composition; a solvent present in an amount of about 65% to about 80% w/w of the composition; and a thickening agent present in an amount of 0.01% to about 0.3% w/w of the composition. In some embodiments, the composition further includes one or more of a film-forming agent, a humectant, and a preservative.

Abstract: The present disclosure relates to semi-permanent tattoos, for example, genipin-based ink compositions. In some embodiments, the ink composition comprises: genipin present in an amount of about 10% to about 20% w/w of the composition; a solvent present in an amount of about 65% to about 80% w/w of the composition; and one or more of a thickening agent, humectant, and film-forming agent present in an amount of 0.01% to about 10% w/w of the composition. In some embodiments, the composition further includes a preservative.

Abstract: The present disclosure relates to semi-permanent inks (e.g., semi-permanent inks comprising genipin, a genipin derivative, lawsone, a lawsone derivative, or combinations thereof); semi-permanent ink applicators; transfer mediums; silicone adhesives; and silicone mediums and kits containing two or more of thereof. The present disclosure also relates to methods for applying an ink to skin as well as methods for increasing the darkness of a semi-permanent tattoo and/or increasing the longevity of a semi-permanent tattoo.