Ukuthunga Ngelanga Ngaphantsi kweGrare of Scrutiny
Nangona ukuqonda okongeziweyo malunga nokuphepha kwelanga kuye kwabangela abaninzi ukuba bangabikho ukucoca iibhedi , umnqweno wokufezekisa ukukhanya kobhedu okwenziwe ngethusi kusemfuno ephezulu. Ukujongana nale mfuno, oosomashishini baye baqala ukuhlawula imali ngokudala uluhlu olubanzi lwezombululo zelanga.
Phakathi kwazo zikhona iipilisi zokunyusela ezithengisayo ezithembisa ukunika ukukhanya okunempilo ngaphandle kweengozi okanye i- ultraviolet (UV) .
Iipilisi Zokwenza I-Tanning Isebenza njani
Kwiimeko eziqhelekileyo, sifumana i-tan xa iiseli zesikhumba ziveze elangeni. Umzimba uphendula ngokupompoza i-melanin ngaphezulu kwiiseli, kubangele ukuba badibane. Oku akusiniki nje kuphela i-hue ekhanga ilanga, inceda ukukhusela ulusu nomzimba wethu kumonakalo ochanekileyo we-UV.
Iipilisi zokunyuza azisebenzi ngale ndlela. Ininzi iqulethe isithako esibizwa ngokuthi i-canthaxanthin, isongezelelo esisisiseko se-carotene esisetyenziswe njengombala kwizinto ezininzi zokutya. Abayitshintshi i-melanin yomzimba wethu kodwa endaweni yoko banamathele ahlukeneyo amangqeleli omzimba, kubandakanya isikhumba.
Iziphumo ziyahluka ukusuka kumntu ukuya kumntu onokufumana i-hue ecebileyo enobuninzi, kanti ezinye zibonakala zi-orange-ish okanye ziphuzi.
Ukukhuselwa kwePilisi yePilisi phantsi koPhando
Nangona i-canthaxanthin ivunyiwe ukuba isebenziswe yi-US Food and Drug Administration (FDA) njengombala wokutya, ayizange iphinde ivunyiwe ukuba isebenzise njengoncedo lokuthungela ilanga.
Iipilisi zokuncibilika ziyaziwa ziqulethe izihlandlo eziliqela ezicetyiswayo ze-canthaxanthin. Ingaba loo mazinga akhuselekile ayengagqitywanga.
Xa kuthethwa oko, i-FDA ifumene iingxelo malunga nemiphumo emibi, enye ingakumbi kwiinkampani ezishiye isicelo sayo emva kokuba umsebenzisi obhekene nombono ophazamisayo ngenxa yokubunjwa kwamakristali kwi-retina yakhe (imeko eyaziwa ngokuba yi-canthaxanthin- i-retinopathy).
Abanye baye bachaza abasebenzisi ababenomvandulu, ukuxubha, isifo sohudo, ukubetheka okunzima, kunye nokwamkela emva kokuthatha iipilisi. Ukulimala kwesikhumba kunye nomonakalo wesibindi kuye kwabikwa.
Ukongeza kwipilisi yokucoca, kukho inani lemveliso elithengiswa njengama-accelerators okuqhawulayo afuna ukuvuselela inkqubo yokutyhulwa komzimba. Ifumaneka kwi-lotion okanye ifomu lepilisi, ziqukethe i-amino acid ebizwa ngokuba yi-tyrosine ebalulekileyo kwimveliso yomzimba we-melanin.
Kwakhona, le mveliso ayifumananga imvume ye-FDA, kwaye ubungqina obuninzi bubonisa ukuba abasebenzi kwaye banokuba yingozi.
EziKhuselekileyo zoKhenketho
Kwalabo abafuna i-tan kodwa bengenakubeka ingozi kwimiphumo ye-UV exposure, kukho imveliso emininzi eye yafumana imvume ye-FDA njengezinye iindlela ezikhuselekileyo zelanga:
- I-Bronzers ihlelwe yi-FDA njengezonyamelo ezenzelwe ukulinganisa i-suntan. Izithako zibandakanya izongezo zombala zemibala kwaye zifuna okungaphezulu kwesepha kunye namanzi ukususa.
- Ukwandisa, i-sunan tanners, kunye nokuzonda izithako zemihlaba eyenziwa ngama-proteins elukhumbeni ukuvelisa i-hue emnyama. Njenge-tan yemvelo, umbala ngokugqithiseleyo uhamba emva kweentsuku eziliqela. Isithako esisebenzayo somkhiqizo ngu-dihydroxyacetone (DHA), i-carbohydrate elula evela kwiibhoksi zeshukela kunye nomsila.
> Imithombo:
> I-American Cancer Society. "Iipilisi Zomnxeba kunye Neminye Imveliso Yomnxeba." E-Atlanta, eGeorgia; kuhlaziywe ngoMatshi 19, 2017.
> Ulawulo lweZiko lokuTya kunye neDrug (FDA). "Ulwazi lweMveliso: iiPilisi zokuNya." ISiliva Spring, eMaldin; hlaziywa ngoJanuwari 12, 2005.