Influence of Applied Quantity of Sunscreen Products on the Sun Protection Factor – A Multicenter Study Organized by the DGK Task Force Sun Protection

2006 ◽  
Vol 20 (1) ◽  
pp. 57-64 ◽  
Author(s):  
R. Bimczok ◽  
H. Gers-Barlag ◽  
C. Mundt ◽  
E. Klette ◽  
S. Bielfeldt ◽  
...  
Keyword(s):  
Multicenter Study ◽  
Task Force ◽  
Sun Protection ◽  
The Sun ◽  
Protection Factor ◽  
Sun Protection Factor ◽  
Sunscreen Products

A microbiological assay for the sun protection factor of sunscreen products

1998 ◽  
Vol 50 (S9) ◽  
pp. 138-138
Author(s):  
Robert W. Jones ◽  
Sarah Smith ◽  
Claire Boden ◽  
Brian G. Carpenter
Keyword(s):  
Sun Protection ◽  
Microbiological Assay ◽  
The Sun ◽  
Protection Factor ◽  
Sun Protection Factor ◽  
Sunscreen Products

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

scholarly journals How the sun protection factor (SPF) of sunscreen films change during solar irradiation

2017 ◽  
Vol 333 ◽  
pp. 186-199 ◽  
Author(s):  
Bernard P. Binks ◽  
Paul D.I. Fletcher ◽  
Andrew J. Johnson ◽  
Ioannis Marinopoulos ◽  
Jonathan Crowther ◽  
...  
Keyword(s):  
Sun Protection ◽  
Solar Irradiation ◽  
The Sun ◽  
Protection Factor ◽  
Sun Protection Factor

scholarly journals Melientha suavis Pierre. Extract: Antioxidant and Sunscreen Properties for Future Cosmetic Development

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Pahol Sansomchai ◽  
◽  
Kanlaya Jumpatong ◽  
Chaipat Lapinee ◽  
Kanchana Utchariyajit ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Ethanol Extract ◽  
Sun Protection ◽  
Total Phenolic ◽  
The Sun ◽  
Protection Factor ◽  
Abts Assay ◽  
Ms Analysis ◽  
Sun Protection Factor

The ultimate aim of this study was to evaluate antioxidant activities using DPPH and ABTS assay and antioxidant substances of Melientha suavis Pierre (Melientha) extracts with ethanol (EtOH) and subsequent partition with hexane, dichloromethane (CH2Cl2), ethyl acetate (EtOAc) and distilled water (W). The Melientha extract was assessed the sunscreen activities by sun protection factor which was compared with octyldimethyl PABA. Additionally, the stability test of Melientha extracts added in the cosmetic base-formula was investigated. The sun protection substances of Melientha extracts were determined by GC-MS analysis. Among the extract and fractions, the ethanolic extract showed the highest activities. The IC50 of Melientha extract to free radical scavenging determined by DPPH assay and ABTS assay were 53.20 ± 7.37 μg/ml and 64.17 ± 5.76 μg/ml, respectively. The total phenolic compound of ethanol extract was 149.87 ± 2.72 mg GE/g of ext and total flavonoid content was 51.60 ± 4.12 mg CE/g of ext. The sun protection factor (SPF) of ethanol extract was 26.61 ± 0.10. Cinamate and its derivative which were claim as sunscreen substance was found by GC-MS analysis of Melientha ethanol extract.

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