Naslov
Prerequisite action of aha based cosmetics on epidermis

Autori
Vincetić, Božena ; Lipozenčić, Jasna ; Ljubojević, Suzana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, stručni

Izvornik
3. Kongres hrvatskih dermatovenerologa s međunarodnim sudjelovanjem. Program i Knjiga sažetaka. / - , 2006

Skup
3. Kongres hrvatskih dermatovenerologa s međunarodnim sudjelovanjem.

Mjesto i datum
Split, Hrvatska, 18.05.2006. - 21.05.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
AHA based cosmetics; epidermis pH value of the skin

Sažetak
The pH value of the skin is one of the most important indicators of alpha hidroxy acids (AHAs) cosmetics efficacy. The mechanism of their activity has a direct influence on the pH value of the skin, which changes at the epidermal cell level. Included in the study were 60 subjects (two groups of 30 women, aged 25-58), who used creams with differ&not ; ; ent pH-values. Both groups were using a placebo sample (pH 6.6) on the right forearm, and on the left forearm different active creams: cream C with pH 2.7 and cream D with pH 3.7, the concentration of active AHA-complex in both creams was 5.0%. The skin pH&not ; ; values in vivo prior to, 30 minutes after, and 1, 2, 3, and 6 weeks after the application showed a reduction of pH-value in the surface layer of stratum corneum in comparison with the placebo sample. A more considerable reduction was recorded in the group using the more acid cream C (pH 2.7). The regular use of AHA-based creams for 6 weeks was found to cause a mean reduc&not ; ; tion of skin pH by nearly 0.5 pH-value unit cream D, and nearly 1.0 pH-value unit for cream C. AHA-based cosmetics reduce pH of epidermis, which is good anti aging property.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

POVEZANOST RADA