CHOOSING AN EXPECTED SPF VALUE 93 expected SPF must be increased between 7% and 9%. When a label SPF of 15 is desired, the expected SPF should be approximately 16.3 (9% increase). When a label SPF of 30 is desired, the expected SPF should be approximately 32.5 (8.5% increase). Choosing the correct expected SPF value will increase the chance of achieving the desired label SPF. REFERENCES (1) K. Garzarella, M.Caswell. Disparate SPF testing methodologies generate similar SPFs, J Cos. Sci., 64, 297–307 (2013). (2) COLIPA, International Sun Protection Factor (SPF) Test Method, February, 2003 (Joint Conference on Harmonization, Colipa, JCIA, and CTFA SA). (3) COLIPA, International Sun Protection Factor (SPF) Test Method, May, 2006, (Joint Conference on Harmo- nization, Colipa, JCIA, CTFA SA and CTFA). (4) The Australian/New Zealand Standard Method, Australia/New Zealand Standard™, Sunscreen products- Evaluation and classifi cation, AS/NZS 2604 (1998). (5) Department of Health and Human Services, Food and Drug Administration, Sunscreen Drug Products for Over-The-Counter Human Use Final Monograph, Federal Register, Vol. 64,27666–27693 (1999). (6) Department of Health and Human Services, Food and Drug Administration, Sunscreen Drug Products for Over-The-Counter Human Use Proposed Amendment of Final Monograph Proposed Rule, Federal Register, Vol. 72,49070–48122 (2007). (7) Department of Health and Human Services, Food and Drug Administration, Labeling and Effectiveness Testing Sunscreen Drug Products for Over-the-Counter Human Use, Federal Register, Vol. 76, 35620–35665 (2011).