Dataset: suntan.dat

Source: Jermann, R., Toumiat, M., and Imfeld, D. (2001). "Development
of an in vitro Efficacy Test for Self-Tanning Formulations," International
Journal of Cosmetic Science, Vol. 24(1), pp. 35-42

Description: Total Colour change for 2 brands, each of 3 formulations
for self-tanning products. Four replicates in each condition.

Variables/Columns
Brand   8  /* 1=Erythrulose,  2=Dihhydroxyacetone  */
Formulation   16  /* 1=Solution, 2=Gel, 3=Cream  */
dE* Score   18-24   /* Total color change  */