All bilou products are dermatologically tested for tolerability by the skin.

bilou products are tested at the "Dermatest" Institute (Dermatest GmbH, Engelstraße 37, 48143 Münster).

Dermatest conducts patch testing with contact on human skin that is limited in time and space, typically using 30 test subjects. Once testing has confirmed that the product is well tolerated on skin, Dermatest confers an official seal (dermatest-garantie.de).

Every bilou product bears the Dermatest seal. For more information about the test procedures used for bilou products click link below:

CONDUCTING THE PATCH TEST

Prospective test subjects receive detailed information about the execution of the test. If an individual agrees to participate and the study conditions are met, the individual signs the declaration of consent form and his or her medical history is documented.

For the bilou shower foams Tasty Donut, Creamy Mandarin, Cherry Blossom, Vanilla Cake Pop, Splashy Melon, Lovely Peach, Fizzy Berry, Chocolate Cupcake and the bilou cream foams Tasty Donut and Fizzy Berry, Frosty Lemon, the following methods are used: 5 mg or 5 µl of the test product are diluted to 1%, 2% and 5% in distilled water and applied to a prefabricated self-adhesive patch (Curatest® F film patch test strip, Lohmann & Rauscher GmbH & Co. KG), then applied to clinically healthy skin on the upper back of the subject and fixed in place.

For the bilou shower foams Cotton Candy, Happy Spring, Slushy Apple, Coco Cocktail, Pink Melon, Cherry Kisses, Plummy Kisses, Yummy Lemon, Pink Love, Mint Love, Purple Love, the bilou cream foams Slushy Apple, Happy Spring, Cotton Candy, Cherry Kisses, Plummy Kisses, the bilou body sprays Tasty Donut, Fizzy Berry, Coco Cocktail, Cherry Blossom, Splashy Melon, Yummy Lemon and the bilou hand mousses Sweet Hands, Dreamy Hands the following methods are used: 20 mg or 20 µl of the test product are diluted to 1%, 2% and 5% in distilled water and applied to a prefabricated self-adhesive patch (Curatest® F film patch test strip, Lohmann & Rauscher GmbH & Co. KG), then applied to clinically healthy skin on the upper back of the subject and fixed in place.

The test patch is removed after a 24 hours of exposure and then subject to a first dermatological and allergological examination. A second and third examination follows after 48 hours and 72 hours. The test response is assessed within 30 minutes of removing the test patch.

In the event that an unclear test response is observed (in terms of type, either allergic or irritative), additional examinations are carried out.

All examinations are carried out under standard lighting conditions. Study participants are instructed to keep the test area dry through the application phase.

TEST SUBJECTS

The test group consists of 30 adult subjects, both male and female. The test group always includes individuals with either (very) dry, oily, normal and sensitive skin.

Inclusion criteria:
- Standard design: minimum of 18 years of age with healthy skin in the test region
- Extra design: Selection according to requirements for age, gender, skin type etc.

Exclusion criteria:
- Acute organic illness
- Pregnant or breast feeding women
- Existing sensitivity to the test patch ingredients- Serious illness
- Application of products containing the active substance and any care products within 4 weeks prior to the beginning of the test
- Use of medications that may affect skin responses (glucocorticoids, allergy medications, topical immunomodulators etc.)
- Deeply tanned skin