Natural cosmetics and our skin
A strong team
The skin is a mirror to our soul. It reveals how we live, how we feel and how we care for ourselves. And it is constantly changing, as it is influenced by a number of factors.
RESEARCH AND DEVELOPMENT
The central pillar of the BIRKENSTOCK NATURAL SKIN CARE active ingredient concept is a multi-active cork oak complex.
IN VITRO STUDY: THE ANTI-AGING EFFECT OF THE EXTRACT
A scientific study helped to investigate the anti-aging effect of cork oak extract in a concentration of 0.2% on fibroblasts (connective tissue cells). The result: cork oak extract is proven to have a positive effect on growth factors and anti-aging genes in cells. Furthermore, it has an antioxidant effect.
IN-VIVO STUDY: SKIN MOISTURIZATION
A clinical trial with 30 subjects aged 24 to 65 has shown that: When using the INTENSIVE MOISTURIZING CREAM twice daily over the course of 28 days, the skin’s moisture content improves by 51.4% compared to using a placebo cream.
IN VIVO STUDY: PROTECTIVE SKIN BARRIER
In a clinical study, 23 subjects aged 20 to 57 used the cream with 1% cork oak extract over a period of 9 days. The result indicates a significant reduction in transepidermal water loss by 46.3%. As a result the skin’s moisture barrier is improved, and its protective function is significantly strengthened.
IN VIVO STUDY: SKIN SMOOTHNESS
A clinical study with 23 subjects aged 20 to 57 tested the effect of a cream with 1% cork oak extract over a total period of 9 days, after being applied twice daily. The result: improved, smoother and more even skin texture by 7% in comparison to the placebo.