Copper Peptide works due to the anti inflammatory properties, but it can be a problem if your scalp is dry in the first place due to the addition ingredient which is Azelaic Acid which exfoliate your scalp skin. It is suitable for people who have oily scalp though. I don't trust the Folligen brand though. I use the brand Ballvic which is made in Korea. My hair specialist wanted me to use it even though my hair loss was due to accutane and not male pattern baldness. She believes it would help anyway.
http://www.skin-md.net/ballvic/index.html
http://www.skin-md.net/ballvic/index.html