Table 1. Skin type; Erythema and Tanning Reactions to the First Summer Exposure I Always burns, never tan (painful burn at 24 hrs and no tan at 7d) II Burn easy, then develop light tan (painful burn at 24 hrs and a light tan at 7d) III Burn moderately, then develop light tan (slightly tender burn at 24 hrs, moderate tan at 7d) IV Burn minimally-rarely, then develop moderate tan (no burn at 24 hrs and a good tan at 7d) V Never burns, always develops dark tan VI Never burns, no noticeable change in appearance