Ma mua o kou kūʻai ʻana i kahi kalima SPF hou, e heluhelu pono i ka mea i kākau ʻia ma ka pūʻolo.
Hoʻolālā ʻia nā cosmetic Sunscreen e pale i ka ʻili mai ka radiation ultraviolet (UV-B a me UV-A), pale aku i ka lā ʻana o ka lā, pale i ka pale o ka ʻili, no laila ke pale nei i ke kiʻi ʻana, ka luku ʻia o nā fibre collagen, hyperpigmentation, a me ka ulu ʻana o ka maʻi ʻaʻai ʻili.
Kauka-cosmetologist o ka nani nani FACEOLOGY.
Eia nō naʻe, noʻonoʻo ka poʻe he nui i nā mea hoʻonani o ka pale lā i mea ʻoi loa ka hoʻopaʻapaʻa ma ka ʻoihana nani. Mai ka manaʻo o ka hana, koi ʻia kahi kahua ʻepekema maikaʻi a maikaʻi hoʻi, no laila, ke koho ʻana i ia mea pono, pono e hāʻawi kekahi i ka makemake i nā mana kaulana. I kēia lā aia kekahi physical и Nine Inch komo nā kānana i loko o nā mea hoʻonani sunscreen. Aia kekahi mau kānana lau nahele, e like me kekahi mau wikamina, nā aila pono a me nā limu, i hoʻohui pinepine ʻia i nā mea hoʻonaninani i loaʻa nā kānana kino a ʻino paha. ʻAʻole hoʻohana ʻia lākou ma ke ʻano ponoʻī ma ke ʻano o ka lā o ka lā.
hana nā kānana kino ma muli o ke aniani o nā kukuna UV, aia ʻelua wale nō o lākou - titanium dioxide (titanium dioxide) a me zinc oxide (zinc oxide). He hana palekana maikaʻi kā lākou a pale aku i ka ʻili mai kahi ākea o UV radiation. ʻO kā lākou drawback wale nō No ka mea hiki iā lākou ke waiho i nā kahakaha keʻokeʻo ke hoʻopili ʻia i ka ʻili, "overload" ka stratum corneum a hoʻopilikia i ka exfoliation maʻamau, akā ke hoʻāʻo nei nā mea hana mea hoʻonaninani hou e kāohi i kēia me ka hoʻohana ʻana i nā nanoparticle micronized o kēia mau mea. ʻAʻole makemake ʻia kēlā ʻano kānana kino no ka hoʻohana ʻana i ka ʻili poino.
"Hana" nā kānana kemika ma muli o ka omo a me ka hoʻololi ʻana o ka ikehu ultraviolet i radiation radiation, ʻo ia hoʻi, ka wela. I nā pale pale cosmetic, ma ke ʻano he kūlana, hoʻohana ʻia kekahi o lākou i ka manawa hoʻokahi. ʻO ka mea weliweli loa, i ko mākou manaʻo, ʻo ia nā mea hiki ke komo i loko o ke kahe o ke koko a loaʻa ka hopena ʻōnaehana.
ʻO kēia mau mea hoʻohui:
- kahi hui para-aminobenzoates (aminobenzoic acid (aminobenzoic acid);
- amyl dimethyl PABA (amyl dimethyl PABA);
- octyl dimethyl PABA;
- glyceryl aminobenzoate, a pēlā aku), kā lākou carcinogenicity, hopena ma ka nā hopohopo a me ka ʻōnaehana holo.
- benzophenones, benzophenone-3 (benzophenone-XNUMX) ʻoi aku ka maʻamau, a me nā inoa ʻē aʻe o kēia hui: avobenzone (аvobenzone), dioxybenzone, oxybenzone (oxybenzone), a pēlā aku. ka ʻōnaehana endocrine (hoʻonāukiuki i ka hana o estrogens a kāohi i ka hana o androgens);
- padimate O (padimate O) hiki ke hoʻopili i ka dermatitis pili;
- kāohi ʻo homosalate (homosalate) i ka hana ʻana o ka estrogen, progesterone a me testosterone;
- meradimate. Aia kekahi hōʻike i ka noiʻi ʻana hiki ke hoʻonui i ka paʻa ʻana o nā ʻano oxygen reactive;
- octinoxate (octól methoxócinnamate), ʻo ka octocrylene (octocrulene) e hoʻopili i ka ʻōnaehana endocrine.
ʻO ia ke kumu e pono ai e nānā i ka hoʻohui o ka pale o ka lā ma mua o ke kūʻai ʻana. Inā ʻike ʻoe i kekahi o kēia mau mea hoʻohui i ka hoʻohui, pono ʻoe e hōʻole e kūʻai a hoʻohana i kēlā huahana.