Alpecin After Shampoo Liquid 200ml Caffeine promotes hair growth. It has even been proven to slow down hereditary hair loss. Now you can bring this unique active ingredient to your hair roots during normal hair washing – with Germanys first caffeine shampoo. Although shampoos were used exclusively to cleanse scalp & hair in the past, Dr. Kurt Wolff-Research has now succeeded in developing a method for transporting caffeine all the way to the hair roots based on a shampoo formula. Thanks to novel galenics (a special carrier base), caffeine already penetrates the scalp during hair washing where it develops its effect. The hair root is the hairs vital center. The hair will only develop from the hair follicle to be strong & healthy, if enough strength & energy are available. In 50% of men, this performance of the hair roots is weakened by testosterone. The consequence: The hair roots are not supplied with sufficient energy, they die prematurely & male baldness ensues. As is known from previous studies by the University of Jena, caffeine protects the hair roots from testosterone attacks & provides them with the necessary growth energy. New studies by the Berlin-based " Charité" university clinic prove the absorption of caffeine by the hair follicles after being left on for a mere 2 minutes. They also show that the caffeine remains detectable up to 24 hours. But there are also other reasons for men to really like this shampoo. Based on the intentional omission of softeners (e.g. silicone), the hair structure improves after just a few hair washes with enhanced hair grip. Fine & weakened hair becomes stronger & can be styled better Studies from the university clinic in Jena prove that caffeine penetrates the hair roots, thereby protecting the hair from negative testosterone impacts & from premature hair loss. Over the past few months, the challenge for Dr. Kurt Wolff-Research was to incorporate sufficient caffeine in a special shampoo formula that would release the active ingredient to the scalp even during a relatively short period of contact & transport it into the hair roots. Based on the formula of the caffeine shampoo (patent pending), this is accomplished after being left on the scalp for no more than 2 minutes. This is proven by a new study that was conducted at the Berlin university clinic (Charité). Thanks to a novel measuring method, the penetration of caffeine in the tested shampoo formula can be proven for the first time. Graphic 1 shows the entire penetration, i.e. across the scalp & the hair follicles. During the first few minutes, the caffeine from the shampoo had already advanced to the hair follicles where it was still detectable after 24 hours. Graphic 2 represents the difference in dermal & overall penetration. It shows the path of penetration via the hair sheath directly to the hair follicle. Compared to overall penetration, it shows that during the first phase of penetration (2 minutes to 30 minutes), the hair sheath or hair follicle clearly dominates. After 30 minutes, penetration via the scalp near the hair follicles has increased to such an extent as to ensure the continued availability of caffeine for up to eight hours. As a result, we distinguish between short-term penetration through the hair follicle & long-term penetration through the scalp. This proves that daily hair washing with caffeine shampoo adds active caffeine to the hair follicle. When being left on for 2 minutes, caffeine penetrates the hair follicle, thereby strengthening weakened hair roots & preventing hereditary hair loss.