Sample formula Self-Tanning Gel Product Code : 1125
Water 87%
Ethoxydiglycol 3% (or Dimethyl Isosorbide (DMI))
DHA 3.5%
Reservoir-Tech 3%
EasyTan ™ 1.5%
Pro-Polymer 1%
Follow this recipe and use it to get a tan, but take a shower the next day. Skin color returns to normal color. Apply repeatedly every day (3 days). After taking a shower in the evening, it will be the same skin color. How many days does it take to become a real skin color?