Caffeine Shampoo C1

• Zinc and niacinamide: Zinc and niacinamide promote energy metabolism and can ensure better nutrient supply to the hair roots.

In principle, the Alpecin Caffeine Shampoo C1 is well tolerated. Nevertheless, the longer you leave the shampoo on the scalp, the more intensive the effect of the Caffeine. This, however, may increase the risk of scalp redness especially for sensitive scalps. Therefore, you should pay close attention to how your scalp reacts when you leave the product on longer. Normally, 2 minutes should be enough to stimulate the hair roots.

Alternatively, we recommend using an Alpecin Shampoo for dry or sensitive scalps.

The efficacy of a Caffeine-containing shampoo to to strengthen the hair roots was demonstrated in scientific studies [in vivo] after being left on for just two minutes – from application to rinsing out. The presence of stimulating Caffeine was confirmed after just 120 seconds which means there is no need to leave the product in for longer. A study has, however, shown that absorption of the active ingredient increases for a period of up to 30 minutes. After that, penetration via the skin surrounding the follicles increases to such an extent that an additional Caffeine supply is ensured for up to about eight hours.

If the product is left on the scalp for longer than 2 minutes, check your scalp type and scalp condition. Depending on the scalp's sensitivity, leaving the product on excessively long can result in temporary redness. To achieve a particularly intensive protective effect, we therefore recommend the combined use of Alpecin Caffeine Shampoo C1 and Alpecin Caffeine Liquid.

Many years ago, our Head of Laboratory, Dr. Klenk, succeeded in adding caffeine to the Alpecin shampoo. How did this innovation come about? Dr. Klenk explains:

“As with many discoveries, the idea came about almost by accident. Our Alpecin products had long been known as a great solution for healthy hair. Caffeine is well known for its stimulating effects, in coffee for example, and was even on the doping list for a while. So it was worth an experiment if it recharges your hair during washing. I had no idea at the time that this would turn out to be such an impressive and long-lasting success story.”

Since you ingest coffee orally, it will first pass through the gastrointestinal organs to be absorbed by the organism at a later time. Subsequently, it is distributed throughout the body and only a tiny quantity reaches the scalp and the hair directly. Even if you drank 50 cups of coffee, it wouldn't provide the hair with enough caffeine to produce the desired result. Thus, a local and direct supply of caffeine to the hair is expedient and necessary.