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The effect of dietary and/or cosmetic argan oil on postmenopausal skin elasticity.

Boucetta KQ, Charrouf Z, Aguenaou H, Derouiche A, Bensouda Y - Clin Interv Aging (2015)

Bottom Line: The consumption of argan oil led to a significant increase of gross-elasticity of the skin (R2) (P<0.001), net elasticity of the skin (R5) (P<0.001), biological elasticity (R7) (P<0.001), and a significant decrease of RRT (P=0.002).The application of argan oil led to a significant increase of gross-elasticity of the skin (R2) (P<0.001), net elasticity of the skin (R5) (P<0.001), biological elasticity (R7) (P=0.001), and a significant decrease of RRT (P<0.001).Our findings suggest that the daily consumption and/or topical application of argan oil have an anti-aging effect on the skin demonstrated by the improvement of skin elasticity, characterized by an increase of R-parameters (R2, R5, and R7) and a decrease of RRT.

View Article: PubMed Central - PubMed

Affiliation: Research Team on Formulation and Biopharmacy, Research Center for Drug, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco.

ABSTRACT

Background: During menopause, the decrease of estrogenic secretion induces the disruption of skin functioning, thus causing the decline in skin elasticity characteristic of skin aging. The purpose of this study was to evaluate in postmenopausal women the effect of daily consumption and/or application of argan oil on skin elasticity.

Materials and methods: Sixty postmenopausal women consumed butter during the stabilization period and were randomly divided into two groups for the intervention period: the treatment group of 30 participants received dietary argan oil, the control group of 30 participants received olive oil, and both groups applied cosmetic argan oil in the left volar forearm during a 60-day period. Assessments of skin elasticity parameters, ie, the three R-parameters (R2 or gross-elasticity of the skin, R5 or net elasticity of the skin, and R7 or biological elasticity), and the resonance running time (RRT) at both volar forearms of the two groups were performed during three visits: before starting oils consumption and application, after 30 days of oils consumption and application, and after 60 days of oils consumption and application.

Results: The consumption of argan oil led to a significant increase of gross-elasticity of the skin (R2) (P<0.001), net elasticity of the skin (R5) (P<0.001), biological elasticity (R7) (P<0.001), and a significant decrease of RRT (P=0.002). The application of argan oil led to a significant increase of gross-elasticity of the skin (R2) (P<0.001), net elasticity of the skin (R5) (P<0.001), biological elasticity (R7) (P=0.001), and a significant decrease of RRT (P<0.001).

Conclusion: Our findings suggest that the daily consumption and/or topical application of argan oil have an anti-aging effect on the skin demonstrated by the improvement of skin elasticity, characterized by an increase of R-parameters (R2, R5, and R7) and a decrease of RRT.

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Volar forearm RRT evolution.Notes: Evolution after oils consumption and/or argan oil application at (A) the RF in the group consuming argan oil, (B) the RF in the group consuming olive oil, (C) the LF in the group consuming argan oil, (D) the LF in the group consuming olive oil. The difference between the three paired means (± SD) of RRT (taken at D0, D30, and D60) of the two volar forearms (RF and LF) of each group (argan and olive) was analyzed using the ANOVA test for repeated measures followed by the Bonferroni post hoc test (if the ANOVA test for repeated measures was statistically significant). P<0.05 was considered statistically significant (for the results of the ANOVA test for repeated measures). NS: the ANOVA test for repeated measures showed no statistically significant difference (P>0.05). *P<0.05 was considered statistically significant (for the results of the Bonferroni post hoc test).Abbreviations: ANOVA, analysis of variance; AU, arbitrary units; D0, before starting oil consumption and application; D30, after 30 days of oil consumption and application; D60, after 60 days of oil consumption and application; LF, left volar forearm; NS, no significant difference; RF, right volar forearm; RRT, resonance running time; SD, standard deviation.
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f6-cia-10-339: Volar forearm RRT evolution.Notes: Evolution after oils consumption and/or argan oil application at (A) the RF in the group consuming argan oil, (B) the RF in the group consuming olive oil, (C) the LF in the group consuming argan oil, (D) the LF in the group consuming olive oil. The difference between the three paired means (± SD) of RRT (taken at D0, D30, and D60) of the two volar forearms (RF and LF) of each group (argan and olive) was analyzed using the ANOVA test for repeated measures followed by the Bonferroni post hoc test (if the ANOVA test for repeated measures was statistically significant). P<0.05 was considered statistically significant (for the results of the ANOVA test for repeated measures). NS: the ANOVA test for repeated measures showed no statistically significant difference (P>0.05). *P<0.05 was considered statistically significant (for the results of the Bonferroni post hoc test).Abbreviations: ANOVA, analysis of variance; AU, arbitrary units; D0, before starting oil consumption and application; D30, after 30 days of oil consumption and application; D60, after 60 days of oil consumption and application; LF, left volar forearm; NS, no significant difference; RF, right volar forearm; RRT, resonance running time; SD, standard deviation.

Mentions: In the group consuming argan oil, the paired means (± SD) of R-parameters (R2, R5, and R7) and RRT values as a function of time (D0, D30, and D60) showed a statistically significant difference (at the P<0.05 level) between at least two means (± SDs) of R-parameters (Figure 3A, Figure 4A, and Figure 5A) and RRT (Figure 6A) with a level of significance of P<0.001 and P=0.002, respectively. This statistically significant difference existed between the D0 and the D60 mean (± SD) for R2 (P=0.001; Figure 3A), R5 (P<0.001; Figure 4A), R7 (P<0.001; Figure 5A), and RRT (P=0.002; Figure 6A) and between the D30 and the D60 mean (± SD) for R2 (P=0.019; Figure 3A), R5 (P=0.006; Figure 4A), R7 (P=0.011; Figure 5A), and RRT (P=0.001; Figure 6A). No statistically significant difference was observed between at least two means (± SDs) of R-parameters (P>0.05; Figure 3B, Figure 4B, and Figure 5B) and RRT values (P>0.05; Figure 6B) in the group consuming olive oil.


The effect of dietary and/or cosmetic argan oil on postmenopausal skin elasticity.

Boucetta KQ, Charrouf Z, Aguenaou H, Derouiche A, Bensouda Y - Clin Interv Aging (2015)

Volar forearm RRT evolution.Notes: Evolution after oils consumption and/or argan oil application at (A) the RF in the group consuming argan oil, (B) the RF in the group consuming olive oil, (C) the LF in the group consuming argan oil, (D) the LF in the group consuming olive oil. The difference between the three paired means (± SD) of RRT (taken at D0, D30, and D60) of the two volar forearms (RF and LF) of each group (argan and olive) was analyzed using the ANOVA test for repeated measures followed by the Bonferroni post hoc test (if the ANOVA test for repeated measures was statistically significant). P<0.05 was considered statistically significant (for the results of the ANOVA test for repeated measures). NS: the ANOVA test for repeated measures showed no statistically significant difference (P>0.05). *P<0.05 was considered statistically significant (for the results of the Bonferroni post hoc test).Abbreviations: ANOVA, analysis of variance; AU, arbitrary units; D0, before starting oil consumption and application; D30, after 30 days of oil consumption and application; D60, after 60 days of oil consumption and application; LF, left volar forearm; NS, no significant difference; RF, right volar forearm; RRT, resonance running time; SD, standard deviation.
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f6-cia-10-339: Volar forearm RRT evolution.Notes: Evolution after oils consumption and/or argan oil application at (A) the RF in the group consuming argan oil, (B) the RF in the group consuming olive oil, (C) the LF in the group consuming argan oil, (D) the LF in the group consuming olive oil. The difference between the three paired means (± SD) of RRT (taken at D0, D30, and D60) of the two volar forearms (RF and LF) of each group (argan and olive) was analyzed using the ANOVA test for repeated measures followed by the Bonferroni post hoc test (if the ANOVA test for repeated measures was statistically significant). P<0.05 was considered statistically significant (for the results of the ANOVA test for repeated measures). NS: the ANOVA test for repeated measures showed no statistically significant difference (P>0.05). *P<0.05 was considered statistically significant (for the results of the Bonferroni post hoc test).Abbreviations: ANOVA, analysis of variance; AU, arbitrary units; D0, before starting oil consumption and application; D30, after 30 days of oil consumption and application; D60, after 60 days of oil consumption and application; LF, left volar forearm; NS, no significant difference; RF, right volar forearm; RRT, resonance running time; SD, standard deviation.
Mentions: In the group consuming argan oil, the paired means (± SD) of R-parameters (R2, R5, and R7) and RRT values as a function of time (D0, D30, and D60) showed a statistically significant difference (at the P<0.05 level) between at least two means (± SDs) of R-parameters (Figure 3A, Figure 4A, and Figure 5A) and RRT (Figure 6A) with a level of significance of P<0.001 and P=0.002, respectively. This statistically significant difference existed between the D0 and the D60 mean (± SD) for R2 (P=0.001; Figure 3A), R5 (P<0.001; Figure 4A), R7 (P<0.001; Figure 5A), and RRT (P=0.002; Figure 6A) and between the D30 and the D60 mean (± SD) for R2 (P=0.019; Figure 3A), R5 (P=0.006; Figure 4A), R7 (P=0.011; Figure 5A), and RRT (P=0.001; Figure 6A). No statistically significant difference was observed between at least two means (± SDs) of R-parameters (P>0.05; Figure 3B, Figure 4B, and Figure 5B) and RRT values (P>0.05; Figure 6B) in the group consuming olive oil.

Bottom Line: The consumption of argan oil led to a significant increase of gross-elasticity of the skin (R2) (P<0.001), net elasticity of the skin (R5) (P<0.001), biological elasticity (R7) (P<0.001), and a significant decrease of RRT (P=0.002).The application of argan oil led to a significant increase of gross-elasticity of the skin (R2) (P<0.001), net elasticity of the skin (R5) (P<0.001), biological elasticity (R7) (P=0.001), and a significant decrease of RRT (P<0.001).Our findings suggest that the daily consumption and/or topical application of argan oil have an anti-aging effect on the skin demonstrated by the improvement of skin elasticity, characterized by an increase of R-parameters (R2, R5, and R7) and a decrease of RRT.

View Article: PubMed Central - PubMed

Affiliation: Research Team on Formulation and Biopharmacy, Research Center for Drug, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco.

ABSTRACT

Background: During menopause, the decrease of estrogenic secretion induces the disruption of skin functioning, thus causing the decline in skin elasticity characteristic of skin aging. The purpose of this study was to evaluate in postmenopausal women the effect of daily consumption and/or application of argan oil on skin elasticity.

Materials and methods: Sixty postmenopausal women consumed butter during the stabilization period and were randomly divided into two groups for the intervention period: the treatment group of 30 participants received dietary argan oil, the control group of 30 participants received olive oil, and both groups applied cosmetic argan oil in the left volar forearm during a 60-day period. Assessments of skin elasticity parameters, ie, the three R-parameters (R2 or gross-elasticity of the skin, R5 or net elasticity of the skin, and R7 or biological elasticity), and the resonance running time (RRT) at both volar forearms of the two groups were performed during three visits: before starting oils consumption and application, after 30 days of oils consumption and application, and after 60 days of oils consumption and application.

Results: The consumption of argan oil led to a significant increase of gross-elasticity of the skin (R2) (P<0.001), net elasticity of the skin (R5) (P<0.001), biological elasticity (R7) (P<0.001), and a significant decrease of RRT (P=0.002). The application of argan oil led to a significant increase of gross-elasticity of the skin (R2) (P<0.001), net elasticity of the skin (R5) (P<0.001), biological elasticity (R7) (P=0.001), and a significant decrease of RRT (P<0.001).

Conclusion: Our findings suggest that the daily consumption and/or topical application of argan oil have an anti-aging effect on the skin demonstrated by the improvement of skin elasticity, characterized by an increase of R-parameters (R2, R5, and R7) and a decrease of RRT.

Show MeSH
Related in: MedlinePlus