If children have skin irritation or small cuts on their faces, you can also do the painting on the hand.
WATER MAKE-UP

Grimas Water Make-up (Pure) is an unperfumed, gluten-free water-based make-up, intended for face-painting and body-painting.
Pure means that the product in question does not contain any chemical preservatives (such as parabens) or halogenated organic compounds.

Water Make-up works just like watercolour paint. Use the brush and a little water to soften the make-up and make it a bit pasty. Test the colour intensity on the hand. Don't work too dry, but do not use too much water.

By applying the base on the lips they appear narrower - a trait of ageing.

The shape, width and quality of the brush are to a great extent qualifying the effect you can achieve with it. You draw straight lines preferably with a flat brush, keeping the handle of the brush pointed in the direction of the line. To draw a thin line, you do not necessarily need to use a narrow brush. You can also use the edge of a flat brush for that. This brush is also very convenient for making a thick line merge into a thin one, turning the brush on its side in one fluid action as you go automatically changes the line from thick to thinner. When you come to the end of a line, lift the brush from the skin in a single smooth movement.
Hint: to make beautiful, thin lines, you mix the Water Make-up with Cleansing Lotion instead of water.