To apply Revlon's 'Nutri Colour Cream Purple Red', follow these general steps for dyeing hair:

1. Preparation: Wash your hair with a neutral shampoo and dry it lightly. Wear an apron or towel to protect your clothes.
2. Safety measures: Carry out a sensitivity test on the skin 48 hours before application to check for allergic reactions.
3. Mixing: Mix the dye cream with the developer in a bowl, following the specific instructions on the packaging.
4. Application: Apply the mixture to the roots of the hair and then spread it evenly over the entire length of the hair. Use a comb or dye brush for even distribution.
5. Setting time: Leave the dye on for the time indicated in the instructions (usually between 20 and 45 minutes).
6. Rinsing: Rinse the hair with lukewarm water until the water becomes clear. Use a hair conditioner to moisturise and protect dyed hair.

Be sure to read the instructions on the package carefully for any additional specifications or variations in the application process.