Dandruff affects approximately 50% of the general adult population worldwide.

Dandruff is more prevalent in males than females. It starts at puberty, reaches peak
incidence and severity at the age of about 20 years, and becomes less prevalent among
people over 50.

Hair is the fastest growing natural tissue in the human body: the average rate of growth is 0.5cm – 1.7cm per month.

Hair is made mostly of a protein called keratin.

Human facial hair grows faster than any other hair on the body.

On average, we lose 50 to 100 strands of hair a day from the scalp.

Human hair grows faster in warm weather because it stimulates hair growth.

The speed of hair growth is based upon genetics, gender, age, hormones, and it may be
reduced by nutrient deficiency and hormonal fluctuations.

100 000-150 000 Hair Follicles of a total number of five million human hair follicles which are formed during embryogenesis, and ensure cyclic hair growth throughout our lifetime, are located on the scalp.

The only “living” part of a hair is found in the follicle as it grows. The hair strand above the skin has no biochemical activity and so is considered “dead”.

On average, the lifespan of a human hair is two to seven years.

No. However, a single square centimetre of human skin, along with adnexal structures, can be inhabited by up to one billion of microorganisms including bacteria, fungi and viruses, forming a complex community known as the skin microbiome.

The scalp microbiome, though, consists primarily of Propionibacteria, Staphylococcus bacteria, and Malassezia yeast.