Table 1 from Effect of a Supplement Containing Olive Leaf Extract against Ultraviolet Light-Induced Tanning: A Double-Blind Placebo-Controlled Study | Semantic Scholar (2024)

Hydrogel films based on low-acyl gellan gum blended with sodium alginate and loaded with OLE and crosslinked with tartaric acid show intriguing properties as effective and fully naturally formulated anti-photoaging smart materials for potential use as facial masks.

Various plants and marine algae categorized based on their benefits as skincare have great potential to be developed as ingredients in cosmetic preparations, and the content of phytochemical compounds in these plants and marine algae supports these benefits.

The present data suggest that supplementation with natural carotenoids may partially protect human skin from UVA- and UVB-induced erythema, although the magnitude of the protective effect is modest.

D-alpha-tocopherol prescribed in combination with ascorbic acid produces the best photoprotective effect, according to a single-blind controlled clinical trial.

The present data suggest that supplementation with natural carotenoids may partially protect human skin from UVA- and UVB-induced erythema, although the magnitude of the protective effect is modest.

Long-term supplementation for 12 wk with 24 mg/d of a carotenoid mix supplying similar amounts of beta-carotene, lutein and lycopene ameliorates UV-induced erythema in humans; the effect is comparable to daily treatment with 24mg of Beta- carotene alone.

The antioxidants used in this study provided protection against erythema in humans and may be useful for diminishing sensitivity to ultraviolet light.

Although different mechanisms are involved in each case, glutathione depletion may contribute to the production of phototoxicity by UVB, UVA, and by PUVA.

It is concluded that a single 120-mg dose of beta- carotene increases plasma and skin beta-carotene concentrations and has no effect on plasma andSkin lycopene concentrations, suggesting a role of Lycopene in mitigating oxidative damage in tissues.

This work has investigated the scavenging actions of some olive oil phenolics, namely hydroxytyrosol and oleuropein, with respect to superoxide anion generation, neutrophils respiratory burst, and hypochlorous acid, and indicates that both compounds are potent scavengers of superoxide radicals and inhibitors of neutrophil respiratory burst.

Investigations on a mammal presenting a well-defined genotype for coat pigmentation, the mutant mouse, provide evidence that the increase of glutathione-reductase activity in the environment of the melanocytes may stimulate the pigment cells to produce phaeomelanin instead of eumelan in pigment.

The questions to which answers have been sought are: Does an age-dependent decline in the population of dopa-positive melanocytes also occur in the skin of the buttock?

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