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Abstract Title:

Safety assessment and toxicological profiling of a novel combinational sunprotective dermal formulation containing melatonin and pumpkin seed oil.

Abstract Source:

Regul Toxicol Pharmacol. 2017 Oct ;89:1-12. Epub 2017 Jul 8. PMID: 28694170

Abstract Author(s):

Nilutpal Sharma Bora, Manash Pratim Pathak, Santa Mandal, Bhaskar Mazumder, Rudragoud Policegoudra, Pakalapati Srinivas Raju, Pronobesh Chattopadhyay

Article Affiliation:

Nilutpal Sharma Bora

Abstract:

Ultraviolet (UV) radiation exposure has been known to cause irreparable damages to human skin. The daunting risk of UV radiation exposure faced by military personnel led to the development of a sunscreen formulation which has superior sun protection factor combined with the ability to counteract reactive oxygen species. The present work deals with the preclinical safety evaluation of the sunscreen formulation comprising of four US FDA approved UV filters; namely avobenzone, octinoxate, oxybenzone, titanium dioxide along with melatonin and pumpkin seed oil, via OECD protocols of assessing acute oral and dermal toxicity; skin sensitizing; skin irritating; ocular irritating and genotoxic potential. Both oral and dermal LD50 values were found to be˃2000 mg/kg body weight in adult Wistar albino rats using acute dermal and oral toxicity tests. The sunscreen formulation was found to be non-sensitizing to the skin of guinea pigs and non-irritating to both skin and eyes of rabbits. The sunscreen formulation was also found to be non-mutagenic which was affirmed by a battery of genotoxicity and muagenicity assays. The results obtained from this preclinical study indicated that the sunscreen formulation is non toxic and safe in animal models. This study along with additional preclinical evaluations may serve as a basis for considering the formulation as a potential candidate for further trials to establish its efficacy, tolerability and applicability.

Study Type : Animal Study

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Easy Turmeric recipes + The Dark Side of Wheat

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