Henna, eyebrow and eyelash dye products contain ingredients that may cause skin irritation or allergic reactions in certain individuals. 

Henna Powder contains PPD, an aromatic amine used in all types of eyebrow and hair dyes, which can cause an allergic reaction. Advice: Always test with "black or dark brown". This contains the highest percentage of PPD.

Before you start working with henna, eyebrow or eyelash dye products on your clients, always do a patch test. Allergy patch testing is important, even though henna is a natural product. Do the patch test on the wrist or behind the ears for 24 hours up to 48 hours before carrying out the treatment. 

Run a Patch Test

Wash your hands and then put on gloves.

Clean and rinse a small area of ​​the client's skin with soap and water, for example behind the ear or on the inside of the forearm.

Mix the products according to the preparation instructions. Apply the mixture to a small area behind the client's ear or on the inside of the forearm and allow to harden for 2 minutes.

Remove the mixture with a cotton ball moistened with water. Advise your customer to come back in 24 to 48 hours. If no irritation or inflammation of the skin is visible, it is usually assumed that there is no hypersensitivity to the product and the treatment can be carried out. 

Allergic reaction

If any reaction occurs during the patch test, such as severe stinging, irritation, rash or burning sensation on the skin, rinse the skin immediately and stop using the product.

If the client experiences (mild) irritation of the respiratory tract, he or she should immediately seek medical attention and consult a doctor.

If there is any itching, redness or spots on the skin, or swelling of the eyes, face or skin in the days following the patch test, it is recommended that the customer consult a doctor and do not undergo the treatment.