... .7mm-1.0mm,not hurt the scalp,not block pores,it's very safe and can attached ... the scalp and hair,non-blocking pores,with simple operation,it's convenient and safe,only 5 ... and hair follicles,helping to reduce excessive hair fall and strengthing the hair. HOW TO USEUse about 2 ml. ... loss doing gentle light massage with your fingers, to facilitate liquid penetration. CAUTIONOnly for external use. Avoid ...