This is a safety study to determine the cumulative skin irritation potential of ZuraPrep™ and ZuraPrep™ without Isopropyl Alcohol after repetitive patch applications to skin of human subjects.

This cumulative irritation evaluation is designed to determine the skin irritation potential of ZuraPrep™ and ZuraPrep™ without Isopropyl Alcohol (IPA) after repetitive patch application to skin of healthy human subjects.

Inclusion Criteria:

• Subjects may be of either sex, at least 18 years of age and of any race
• Subjects must be free of tattoos, sunburn, dermatoses, cuts, lesions or other disorders of the skin of the back.
• Subjects must be in good general health

Exclusion Criteria:

• Known allergies to latex, metals, tape and/or adhesives, soap, citric acid, methylene blue, methylparaben, propylparaben, chlorhexidine gluconate, isopropyl alcohol, and sodium lauryl sulfate.
• Exposure of the back region to antimicrobial agents, medicated soaps, medicated shampoos, medicated lotions, strong detergents, sun-tanning, use of tanning beds, or swimming or soaking in pools or hot tubs, in the 7 days prior to, or during the 3-week test period.
• Use of topical or systemic corticosteroid, antihistamine, or anti-inflammatory medications in the 7 days prior to, or during the 3-week test period.
• Current or recent severe illness such as asthma, diabetes, hepatitis, organ transplant, mitral valve prolapse, congenital heart disease, internal prostheses, or any immunocompromised condition such as AIDS or HIV positive.
• Pregnancy, plans to become pregnant, breast-feeding
• Any active skin rash or breaks in the skin of the back
• Any sunburn or tattoos on the skin of the back
• Current active skin disease or inflammatory skin condition including contact dermatitis
• Participation in a clinical study in the past 7 days or current participation in another clinical study
• Any medical condition or use of any medications that, in the opinion of the Principal Investigator, would preclude participation
• Unwillingness to fulfill the performance requirements of the study