YOUSÉN products are dermatologically tested in independent research laboratories. These tests are conducted to evaluate skin tolerance and safe use of the products.

The testing process includes:

• A 48-hour occlusive patch test method is applied.

• Controlled evaluation is performed on healthy volunteers.

• Skin reactions are observed under the supervision of a dermatologist.

• Effects such as redness, irritation, and sensitivity are examined in detail.

In clinical studies, it has been observed that our products do not have an irritating effect on the skin.

Average irritation values ​​have been evaluated according to scientific criteria, and our products have been classified as "non-irritating".

At YOUSÉN, we prioritize:

✔ Dermatologically tested

✔ Skin-friendly

✔ Developing safe formulas.