Generally speaking, when used with regular oil paint sticks and used correctly, they are relatively safe for the human body. However, I still recommend taking some precautions:
Read the product directions: Before using oil sticks, read the directions on the product package to see if there are any special precautions or age restrictions. It is important to follow the manufacturer's recommendations and warnings.
Avoid Mouth Contact: Oil sticks should generally not be put in the mouth. While most oil sticks are non-toxic, they are not food, and swallowing large quantities of oil sticks may cause discomfort. Especially with young children and infants, strict supervision should be made to ensure that they do not put the sticks in their mouths.
Avoid eye contact: Oil sticks should not come in contact with eyes. If the oil paint stick gets in the eyes, rinse it with water immediately and seek medical attention if necessary.
Proper Ventilation: Make sure the room is well ventilated when using oil paint sticks. This helps to reduce the impact of odor and paint dust emitted by oil paint sticks on indoor air quality.
Hand Cleaning: After using the oil sticks, clean your hands promptly to remove paint and any potential chemical residue. Wash hands thoroughly with warm water and soap, then rinse thoroughly.
Although oil pastels are generally considered relatively safe art materials, there may be a risk of sensitivity or adverse reactions for certain groups of people, such as those with paint allergies or respiratory problems. If you or your child has any allergic symptoms or discomfort, stop using oil sticks and seek medical advice.
Best practice is to follow the product directions and the manufacturer's recommendations to ensure proper use of oil sticks and to practice good hygiene.