• Title/Summary/Keyword: Sunscreening agents

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Effects of Excipients on Colour Fading of FD & C Yellow No. 5 and FD & C Red No. 2 by Use Tintometer (Tintometer를 이용한 FD & C Yellow No. 5와 FD & C Red No.2의 퇴색에 미치는 부형제의 영향에 관한 연구)

  • Kim, Jung-Woo
    • Journal of Pharmaceutical Investigation
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    • v.5 no.2
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    • pp.57-62
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    • 1975
  • It was many differances to evaluate of the effect of excipients on colour fading in FD & C Yellow No.5 by use Tintometer and nearly is not effective in FD & C Red No. 2. When we observed colour fading in suger coating formulations by tintometer, FD & C Red No.2 was appeared to follow zero order reaction and FD & C Yellow No. 5 was not follow zero order reaction or first order reaction. Also, we could know the tendency of colour fading by visible spectrum, but it was net suitable method for this experiment more than by tintometer. The relative colour fading effect of the surfactants(Polysorbate) was as follows: Tween 60> Tween 80> Tween 20. In addition to, Benzalkonium chloride was reacted with FD & C Yellow No.5, so the stronger colour was appeared. On the other hand, the weaker colour was appeared in FD & C Red No.2. While, the sunscreening agents was not almost effective in colour fading of FD & Yellow No. 5 and FD & C Red No. 2.

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Pathogenesis and prevention of skin cancer (피부암의 병인과 예방)

  • Oh, Byung-Ho
    • Journal of the Korean Medical Association
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    • v.61 no.11
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    • pp.644-648
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    • 2018
  • The incidence of skin cancer has continuously increased in Korea, probably due to sun exposure and increases in the aging population. Ultraviolet light, a well-known risk factor for skin cancer, can cause DNA damage, mutation, and immune suppression, followed by abnormal proliferation. To prevent photocarcinogenesis, the appropriate use of sunscreen should be emphasized. Using broad-spectrum sunscreens with sun protection factor values of 15 or higher and frequent reapplication are recommended. Controversy exists about whether vitamin D synthesis is inhibited by the use of sunscreen. However, considering that skin cancer most commonly develops on the head and neck area, applying it to the face and neck is reasonable in terms of balancing the risk-benefit ratio.

Development of Multifunctional Natural Sunscreen (BHC-S) Having Sunscreening and Anti-wrinkle (주름개선 자외선 차단효과를 갖는 다기능성 천연 자외선 차단제(BHC-S) 개발)

  • Kim, Chul;Jeong, Sae Byeol;Im, Gyeong Hyeon;Gang, Myeong Hwan;An, Jun Hyuk;Kim, Jin Hee;Lee, Ho
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.43 no.4
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    • pp.321-327
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    • 2017
  • This study was carried out to develop a stable plant-derived natural sunscreen (BHC-S) that replaces the artificially synthesized organic sunscreen agents. The natural sunscreen (BHC-S), which is composed of peanut extract, Centella asiatica extract, and Ecklonia stolonifera extract, has the same level of ultraviolet shielding effect as PARSOL MCX-XR (OMC), which is a synthetic sunscreen. and has safety against skin. MultiFunctional effect such as and anti-wrinkle improvement. Thus, it can be used as raw material for natural cosmetics for ultraviolet ray blocking, and anti-aging.