In vitro determination of sun protection factor and chemical stability of Rosa kordesii extract gel

2013 ◽  
Vol 7 (6) ◽  
pp. 520-524 ◽  
Author(s):  
Pratik P. Maske ◽  
Sachin G. Lokapure ◽  
Dhanashri Nimbalkar ◽  
Shobharaj Malavi ◽  
John I. D'souza
Keyword(s):  
Chemical Stability ◽  
Sun Protection ◽  
Protection Factor ◽  
Sun Protection Factor

scholarly journals SUN PROTECTION FACTOR DETERMINATION STUDIES OF SOME SUNSCREEN FORMULATIONS USED IN COSMETICS FOR THEIR SELECTION

2018 ◽  
Vol 8 (5-s) ◽  
pp. 149-151 ◽  
Author(s):  
Masheer Ahmed Khan
Keyword(s):  
Sun Protection ◽  
Protection Factor ◽  
Dynamic View ◽  
Laboratory Measure ◽  
In Vitro Assessment ◽  
Sun Protection Factor ◽  
Uv Dose ◽  
Selection Of

The study involves determination of sun protection factor (SPF) values of some sunscreen formulations for their use in cosmetics.  The Sun Protection Factor (SPF) is a very popular instrument in the marketing of sunscreens. Sun protection factor is a laboratory measure of the effectiveness of sunscreen, the higher the SPF, the more protection a sunscreen offers against the ultraviolet radiations causing sunburn. It is often not understood how sunscreens work and where the limitations of the SPF are. A lot of aspects of the SPF are confusing, e.g. the race for higher and higher numbers, the effect on SPF when less sunscreen is applied and if sunscreen should be used at all because they may block the Vitamin D synthesis. The study explains how sunscreens work, how the SPF is determined and where the limitations of the current methods exist. The dynamic view of 'UV radiation applied' and the 'UV dose transmitted' through the sunscreen onto the skin as well as onto a substrate in vitro help in the understanding and are also promising approaches in the in vitro assessment. The study is helpful in selection of some sunscreens formulations used in cosmetics with better safety and high SPF values. Keywords: Sun Protection Factor, SPF, Sunscreens

scholarly journals Penentuan Nilai Sun Protection Factor secara In Vitro pada Ekstrak Etanol Akar Kalakai (Stenochlaena palustris Bedd) dengan Metode Spektrofotometer UV-Vis

2019 ◽  
Vol 4 (2) ◽  
pp. 26-31
Author(s):  
Rabiatul Adawiyah
Keyword(s):  
Ethanol Extract ◽  
Sun Protection ◽  
Parameter Determination ◽  
The Sun ◽  
Protection Factor ◽  
Ability Levels ◽  
The Subject ◽  
Sun Protection Factor

The sunscreens or Sun Protecting Agent is the materials protecting the skin from the exposure to ultraviolet (UV) rays. Amount of Sun Protection Factor shows how many times the subject skin protection can be multiplied under the sun rays without erythema occurs. Kalakai contains some bio-active substance like phenol, flavonoid, alkaloid and terpenoid family which are proven as a very effective antioxidant. The purpose of this research was to determine the concentration of ethanol extract of kalakai root which has the potential as a sunscreen based on the Sun Protection Factor (SPF) parameter. Determination of SPF amount was carried out in vitro by UV-VIS spectrophotometer at a concentration of 50 ppm, 100 ppm, 150 ppm, 200 ppm, 250 ppm, 300 ppm, and 350 ppm with a wavelength of 290-320 nm. The result showed that kalakai root ethanol extract indicated potential as a sunscreen at a concentration of 300 ppm and 350 ppm obtained SPF values respectively 11 and 14 classified as sunscreens with extreme ability levels.

In Vitro Evaluation of Sun Protection Factor of Plant Extracts By Ultraviolet Spectroscopy Method

2021 ◽  
Vol 1 (30) ◽  
pp. 58-62
Author(s):  
Geeta Bhandari Garima Negi
Keyword(s):  
Chronic Exposure ◽  
Sun Protection ◽  
Skin Protection ◽  
Murraya Koenigii ◽  
Protection Factor ◽  
Safe Alternative ◽  
Sun Protection Factor ◽  
Acute And Chronic Exposure ◽  
Sunscreen Products

Abstract-Acute and chronic exposure to nonphysiological doses of ultraviolet radiation leads to variety of changes of skin ranging from sun-burn, erythema to skin cancer. For skin protection from deleterious effects of sunlight, sunscreen products are used in various forms having chemical and physical filters. However, synthetic sunscreen formulations are reported to cause adverse effects. Thus the present study was planned to evaluate the sun protection factor (SPF) of leaves extract of Murraya koenigii for their application as herbal sunscreens. The results suggested that the occurrence of active compounds responsible for ultraviolet absorption can be extracted for use in sunscreens preparations as better, cheaper and safe alternative to harmful chemical sunscreens. Keywords: UV radiations, SPF, Murraya koenigii

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