Ma formula oteteza ku dzuwa ndi omwe amagwira ntchito amakhala pachiwopsezo cha okosijeni, zomwe zimapangitsa kuti mitundu isinthe, kulekanitsidwa, kapena kutayika kwa mphamvu ya SPF. Kupaka ndikofunika kwambiri poteteza ma formula odzola ndi mankhwala ku zinthu zowononga chilengedwe monga mpweya, chinyezi, ndi kuwala kwa UV. Ma chubu osinthasintha okhala ndi magawo asanu amapereka chitetezo chapamwamba cha zotchinga, zomwe zimapangitsa kuti zikhale zabwino kwambiri pazinthu zotetezeka monga zoteteza ku dzuwa, zopaka pakamwa, komanso zosamalira khungu zomwe zimagwira ntchito bwino kwambiri. EVOH (Ethylene Vinyl Alcohol) imawonjezera chotchinga chapakati chomwe chimateteza formula yanu nthawi yonse yomwe ikugwiritsidwa ntchito.