Evaluation of Potential Phototoxicity Skin Reaction After Use of MC2-01 Cream

Inclusion Criteria: * Is a healthy male or female * Is 18 years of age or older * Agree not to participate in any clinical or patch test studies at Day 1 through study completion * Females of childbearing potential must use a highly effective method of contraception for one month prior to Screening and until the end of study visit has been performed * in the case of a female of childbearing potential, has a negative urine pregnancy test on Day 1 prior to randomization and are willing to submit to a urine pregnancy test at the end of study * In the case of a female of non-childbearing potential, has had a hysterectomy or is postmenopausal * Is free of any systemic or dermatological disorder, which, in the opinion of the Investigator, will interfere with the study results or increase the risk of AEs. * Has uniformly-colored skin on the intrascapular region of the back which will allow discernment of erythema, and has Fitzpatrick skin types I, II or III * Complete a medical screening procedure * Read, understand and sign an informed consent Exclusion Criteria: * Has a history of photosensitivity or photoallergy * Has any visible skin disease at the application site which, in the opinion of the Investigator, will interfere with the evaluation of the test site reaction * Current or past history of hypercalcemia, vitamin D toxicity, severe renal insufficiency or severe hepatic disorders * Is using systemic/topical corticosteroids within 3 weeks prior to and/or during the study or systemic/topical antihistamines 72 hours prior to and during the study * Is not willing to refrain from using systemic/topical anti-inflammatory analgesics (81 mg aspirin and occasional use of acetaminophen will be permitted) * Are taking medication known to cause phototoxic reaction * Is using medication which, in the opinion of the Investigator, will interfere with the study results * Is unwilling or unable to refrain from the use of sunscreens, cosmetics, creams, ointments, lotions or similar products on the back during the study * Has psoriasis and/or atopic dermatitis/eczema * Has a known sensitivity or allergy to constituents of the materials being evaluated * Is a female who is pregnant, plans to become pregnant during the study, or is breast feeding a child * Has damaged skin in or around the test sites, including sunburn, excessively deep tans, uneven skin tones, tattoos, scars excessive hair, numerous freckles or other disfigurations of the test site * Has received treatment for any type of internal cancer within 5 years prior to study entry * Has a history of, or are currently being treated for skin cancer and/or hepatitis * Has a history or, or is currently being treated for diabetes * Has any condition that might compromise study results * Is expected to sunbathe or use tanning salons during the study * Has a history of adverse response to UV-sun lamps/sunlight exposure * Is currently participating in any clinical testing * Has any known sensitivity to adhesives * Has received any investigational drug(s) within 28 days from Day 1