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Cosmetics 2015, 2(4), 368-383; doi:10.3390/cosmetics2040368

A Novel Cassia fistula (L.)-Based Emulsion Elicits Skin Anti-Aging Benefits in Humans

1
Department of Pharmacy, Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
2
Department of Aesthetic and Anti-Aging Medicine, Centre Medical des Guittieres, Saint-Philbert-de-Grand-Lieu 44310, France
3
Department of Pharmaceutical Sciences and Nanomedicine, Fluorotronics Inc., San Diego, CA, USA
*
Authors to whom correspondence should be addressed.
Academic Editor: Enzo Berardesca
Received: 25 August 2015 / Revised: 17 October 2015 / Accepted: 19 October 2015 / Published: 6 November 2015
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Abstract

Cassia fistula, a flowering plant in the family of Caesalpinaceae (Fabaceae), is used in traditional medicine for several indications. Nevertheless, too little is known about its effects on skin conditions and skin aging. Therefore, in this pioneering study, the extracts of oil-in-water macro-emulsions containing 5% C. fistula (L.) crude pods (i.e., phyto-active formulation) were optimally developed and compared to the placebo (i.e., emulsions without the crude extract) for assessment of their effects on human skin aging. Healthy adult male volunteers (n = 13) with a mean age of 31 ± 5.5 years (range: 24–47 years) were enrolled after informed written consent. For 12 consecutive weeks, the subjects were directed to use a patch containing the active emulsion on one of their forearms as well as a patch containing the placebo on their other forearm. Biometrological measurements of skin hydration (SH) and transepidermal water loss (TEWL) were performed on both sides of their respective cheeks at time 0 (baseline values), 2, 4, 6, 8, 10 and 12th weeks. Surface evaluation of living skin (SELS) was taken at time 0 (baseline values) or after 1, 2 and 3 months. Topical application of C. fistula extracts showed a significant (p < 0.05) increase in stratum corneum hydration level, a significant enhancement in its water-holding function as well as in its barrier function. Further, significant (p < 0.005) ameliorations of skin aspects were observed (i.e., less roughness, less dryness, less wrinkles). Taken together, our results strongly suggest therapeutic and esthetic potential of C. fistula pod’s extracts to prevent or delay human skin aging. View Full-Text
Keywords: Cassia fistula; emulsion; Visioscan® VC; skin anti-aging; biotechnology; phytomedicine Cassia fistula; emulsion; Visioscan® VC; skin anti-aging; biotechnology; phytomedicine
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Khan, B.A.; Akhtar, N.; Menaa, A.; Menaa, F. A Novel Cassia fistula (L.)-Based Emulsion Elicits Skin Anti-Aging Benefits in Humans. Cosmetics 2015, 2, 368-383.

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