pag trimmer, tip ko wahl, easily available in any department stores and beauty parlor shop supply stores, maintenance heavy lang, you'll have to clean and oil it regularly kung hinde, bukod sa madali mapurol ang blade kakalawangin agad, may available ang wahl na stainless steel blade but you have to buy it separately (regular type blade lagi kasama sa retail pack), and you still have to clean and oil it regularly pa rin
para naman sa shaver, hard to beat this one,
I've been using this and panalo talaga, unfortunately I'm not sure if this is available locally, para naman sa blades nito, compatible with several gillette blades (tingin ko pati iba shick blades but haven't tried it) so walang problem sa replace ng blades
as for scalp maintenance, I know this will sound funny, but you still have to use shampoo (I alternate between baby & anti dandruff shampoo), kung hinde, mabilis mag dry and flake yun skin sa head, nung una kasi gamit din ako sabon, mamaya nag flake yun scalp ko, hehehe, and I sometimes use after shave and moisturizer sa scalp, hope this helps
eto pala yun link dun sa head shaver;
www.headblade.comthey offer a complete line of head care products, I tried them all, maganda lahat ng products nila, but it's a pain mag import constantly kaya minsan meron ako ng iba items nila minsan din wala, hehehe
