1, 3-Dihydroxyacetone
1, 3-I-Dihydroxyacetoneobeye aziwe njengoi-glycerin, i-carbohydrate elula (i-triose) enefomula C 3H 6O 3. 1, 3-I-Dihydroxyacetoneiyi-ketose eyenzeka ngokwemvelo engaboli, edlekayo futhi engenabo ubuthi emzimbeni womuntu kanye nemvelo.Kuyisithasiselo esisebenza ngezindlela eziningi esingasetshenziswa ezimbonini zezimonyo, ezemithi nezokudla. 
Amapharamitha Abalulekile Wezobuchwepheshe:
| Ukubukeka | Impushana emhlophe ukuya kokumhlophe |
| pH | 4.0~6.0 |
| Amanzi | ≤0.4% |
| Izinsalela ekushiseni | ≤0.4% |
| Isivivinyo | ≥98.0% |
| Izinsimbi ezisindayo(Pb) | ≤10ppm |
| Insimbi(Fe) | ≤10ppm |
| I-Arsenic(AS2O3) | ≤3ppm |
| Isitoreji | Gcina yomile futhi kude nokukhanya, isitoreji ku-2~8℃ |
Umsebenzi: 1. I-ejenti engcono kakhulu futhi edume kakhulu yokuzishukela ukuze uthole ukubukeka okungokwemvelo okunjenge-tan ngaphandle kokuchayeka elangeni. 2. Ukuvikelwa kwesithombe okubalulekile nokufakazelwe ku-UVA ngenxa yombala wesikhumba odalwe yi-DHA. 3. Ukufakwa ekwakhiweni kokunakekelwa kwesikhumba ukuze kusetshenziswe nsuku zonke ukuze kulungiswe noma kunwetshwe i-suntan. 
Isicelo: 1. Isetshenziswa embonini yezimonyo, i-dihydroxyacetone isetshenziswa ngokuyinhloko njengendlela yezimonyo, ikakhulukazi njengoba i-sunscreen inomphumela okhethekile, ingavimbela ukuhwamuka ngokweqile komswakama wesikhumba, ibambe iqhaza ekuthuthukiseni umswakama, i-sunscreen kanye nokuvikelwa kwemisebe ye-UV; 2. I-Ketone ye-DHA eqenjini elisebenzayo elinesikhumba se-keratin amino acids kanye namaqembu e-amino ku-Chemicalbook kufanele kube ukwakheka kwe-polymer ensundu, kwenza abantu bakwazi ukukhiqiza isikhumba esinsundu sokwenziwa, ngakho-ke nawe ungasetshenziselwa ukulingisa i-ejenti ye-tan, thola imiphumela ibukeka futhi isikhathi eside ukuchayeka elangeni insundu efanayo noma tan, yenza kubukeke muhle.I-Dihydroxyacetone iwumkhiqizo ophakathi we-metabolism kashukela, edlala indima ebalulekile enqubweni ye-metabolism kashukela futhi inezindawo ezinempilo;
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