for facial serums and moisturizers

STEP 1 | Apply a small amount of the product into a clean area of skin on the upper forearm.

STEP 2 | Keep the area clean and dry.


If no irritation is developed after 24 hours, the product is safe to use.
Do not apply to sensitive or irritated skin. If you feel a pricking or burning sensation, the product must be washed off immediately with plenty of water.


for peeling solutions and direct acids

STEP 1 | Apply the product on the elbow crease, on a small area once a day to check if you are sensitive to this product.

STEP 2 | Keep the area clean and dry.

STEP 3 | In the end of the day rinse off the area. Repeat for 3 days.


If no irritation is developed after the specified time has passed, the product is safe to use.
Do not apply to sensitive or irritated skin. If you feel a pricking or burning sensation, the product must be washed off immediately with plenty of water.


for scalp treatments

STEP 1 | Apply a small amount of the product on clean skin behind the ear.

STEP 2 | Keep the area clean and dry.


If no irritation is developed after 24 hours, the product is safe to use.
Do not apply to sensitive or irritated skin. If you feel a pricking or burning sensation, the product must be washed off immediately with plenty of water.


for different types of toners, facial sprays or mists

STEP 1 | Apply / Spray a small amount of the product into a clean area of skin on the upper forearm.

STEP 2 | Keep the area clean and dry.


If no irritation is developed after 24 hours, the product is safe to use.
Do not apply to sensitive or irritated skin. If you feel a pricking or burning sensation, the product must be washed off immediately with plenty of water.


Please note that the sensitivity test is only for determining initial irritation reactions to products and does not guarantee similar results when applied to other areas of the body/facial skin or after continuous use. It does not account for underlying conditions and should not be used for the diagnosis of hypersensitivity or other allergic skin conditions. If you are concerned about using a new product, please consult a dermatologist/medical advice before use.