Register January 2009 No. 637
APPENDIX A
SUN-REACTIVE SKIN TYPES USED IN CLINICAL PRACTICES
Note: Categories are based on the Fitzpatrick Skin Type Scale.
*Based on the first 45-60 minutes (equals 2-3 minimum erythema dose) exposure of the summer sun (early June) at sea level.
**Immediate pigment darkening refers to the skin’s response to sun exposure that occurs within the first few minutes to a few hours after exposure to sunlight.