Non-limiting examples of insult-affected keratinous tissue include sunburn and other types of burns; rashes, such as diaper rash, shaving rash and allergen-induced rashes; discoloration, such as bleaching, staining or hyperpigmentation; skin having nicks and cuts due to, for example, shaving; dry, chapped or rough skin due to exposure to example wind, cold and/or low humidity, etc.