Procedure
Take the latex prostetic out of the box and place it on the skin to get an impression of whether the edges are a good fit and where it is soon going to be glued on.
Everything that is going to be coloured in a skin tone - except for the edges - must be pre-coloured slightly with red to suggest naturally perfused skin. To do this, apply Grimas Special Effects Powder 504 or a red Grimas Eyeshadow/Rouge using a Make-up Sponge or Powder Rouge Brush. Then use a sponge to apply a covering layer of Grimas Camouflage Make-up Pure in the desired skin tone. Work directly from the stick or spatula.
If you want to give the latex prostetic a brighter colour, use Grimas Crème Make-up Pure.
Don't use Crème Make-up Pure for skin tones, but use Grimas Camouflage Make-up Pure.

Put a piece of wadding in the nose to maintain its shape and to absorb perspiration.

Apply a little Grimas Mastix Extra to the inside of the scales/adhesive edge and allow it to dry for a few seconds. Allow the glue to dry for 15 seconds and then place the latex prostetic back on the skin.
Use a pin-tail comb to hold the scaly edges properly in place and glue them straight. Press the edges down firmly with a tissue.

To get a smooth transition between the latex prostetic and the skin, even the edges off as follows: apply a thin line of eyelash adhesive to the edge of a sponge and dab this over the transition between the latex prostetic and the skin. Allow to dry with help of a hairdryer until the result is transparent. Repeat this process until a nice and even transition is obtained.
Colour the edges of the transition with the colour being used. Powder it all off with Grimas Transparent Powder or Fixing Powder and then remove any excess powder.

Removal
Detach the adhesive edge with a cotton bud soaked in Grimas Mastix Remover. Remove the adhesive and make-up residues from the latex prostetic with Mastix Remover. Massage Grimas Multi Remover Pure or Cleansing Cream into the skin and remove with a tissue. Cleanse the skin afterwards with Grimas Cleansing Lotion.

Clean the latex prostetic afterwards using water and soap, and powder it with Grimas Transparent Powder after drying (with a dryer, if necessary). Keep in a dark place.