I love this hair shine! I use it on a regular basis because it makes my hair highlights & lowlights look beautiful!! Each color stands out and if I have dry ends because of shampooing everyday I do not notice that at all. It is not really expensive and even if the bottle is 3.4 oz it last forever! A little goes a long way. The only downside I see and that is not an issue to me; I found I have to wash my hair after using. Which I do daily anyway!