Siyaqhubeka nokuhlalutya izizathu zokuba kutheni, ngamanye amaxesha, sibona ukuba iinzipho zethu ezityheli. Kwinqaku elidlulileyo, sigqabaze oko ukudumba kwesibindi (hepatitis), ukusetyenziswa kwecuba, ukusetyenziswa gwenxa kwezikhonkwane zobuxoki, kunye nokusilela kweevithamini A no-B zezinye zezona zinto zixhaphakileyo. Kodwa ayisiyiyo yodwa.
Ukusilela kweVitamin A kuyingozi, kodwa kunjalo nokuxhatshazwa kwayo. Ukuba sithatha uvithamini A ogqithisileyo, ulusu lujika lube tyheli, lubonakale ngokwaziwa njengehypercaroterodemia, Oko kukuthi, ukunyuka okubaxekileyo kwi-beta-carotene emzimbeni wethu. I-Beta-carotenes zizinto ezingaphambi kokutyala ivithamini A kwaye zifumaneka kwimifuno eorenji, ebomvu, okanye emthubi. Zikwivatala, cantaloupe, raspberries, iminqathe, kunye ne squash, phakathi kwabanye.
Ukuba sisebenzisa uninzi lwe-nail polish sinokubenza baphele befumana ithoni embi emthubi. Njengakwiinzipho zobuxoki, azivumeli ukuba isikhonkwane siphefumle kwaye sonakalise i-keratin, singavumeli isikhonkwane ukuba sizivuselele. I-Enamel inezinto ezininzi ezinetyhefu ekubunjweni kwazo ezinje nge-toluene, i-butyl acetate okanye i-ethyl acetate enokuthi ikhokelele kwi-allergic dermatitis.
Kwaye ayimangalisi into yokuba sinayo iinzipho ezityheli ukuba sinomngundo. Zihlala zibekwe emazantsi esikhonkwane kwaye zondla ngekeratini. Kulula ukusasazeka xa zivela ngeenyawo kwaye zivele ngenxa yokungabikho kococeko, ukukhusela okuphantsi okanye ukusika okungalunganga kwezikhonkwane.