Goldwell kerasilk revitalize redensifying serum is an incredibly delicious serum for you with thin and broken hair.aging of the scalp affects both the condition of one's hair and the scalp, and with its content of ectoin, ginseng, procapil and t-flava-none, this serum effectively counteracts aging.it goes in and protects and restores hair and scalp, giving it a youthful and healthy appearance. Goldwell kerasilk revitalize redensifying serum prevents hereditary hair loss, strengthens the roots and gives a long-lasting thick and full-bodied hair.this treatment protects against oxidizing stress and thereby rejuvenates.