To evaluate the Sun protection factor efficacy on human skin.

Inclusion Criteria:

• Fitzpatrick Skin Type l, ll and/or lll for UVB testing. Fitzpatrick Skin Type ll, lll and/or lV for UVA testing.
• Male and female
• Aged between 18-70 years old.
• Good health as determined from the HRL SHF(Self History Form)
• Signed and dated Informed Consent Form
• Signed and dated HIPAA (Health Insurance Portability and Accountability Act) Form
• An unbambiguous MED (Minimal Erythema Dose) or MPPD (Minimal Persistent Pigment Darkening Dose)

Exclusion Criteria:

• Subjects on test at any other research laboratory or clinic.
• Known allergy or sensitivity to sunscreens, cosmetics and toiletries, topical drugs and/or ultraviolet light.
• Pre-existing dermatologic conditions which have been diagnosed by a medical professional (e.g. psoriasis, eczema, etc.) which would interfere with this study.
• Pre-existing other medical conditions (e.g. adult asthma. diabetes).
• Treatment with antibiotics within two weeks prior to initiation of the test.
• Chronic medication which could affect the results of the study.
• Known pregnant or nursing women.
• Treatment with antihistamines or corticosteroids within one week prior to initiation of the test.