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This study synthesized a new organic sunscreen with broad photoprotective properties and demonstrated it to be non-toxic. The resultant cream, containing nanostructured lipid carriers, showed suitable application qualities and achieved a satisfactory SPF value of 16.

This narrative review suggests a strong association between abrupt hormonal imbalances and frontal fibrosing alopecia in women, especially related to reduced fertile years and certain hormonal therapies.

This study reported that sunscreen with SPF50+ provides a high level of DNA protection against UV-induced damage in a reconstituted human epidermis model, comparable to that in skin explants.

In this study, zinc oxide nanoparticles were synthesized using a sustainable method from the Lepidium sativum L. plant, and incorporating these nanoparticles into Sunblock Lotion significantly increased its sun protection factor.

This compilation on contact and occupational dermatology in the Asia-Pacific region discusses various allergens and irritants without reporting new clinical findings.

This study found that sunscreen and moisturizer use was associated with a higher likelihood of developing frontal fibrosing alopecia in the reviewed studies.

This review study focused on various in vitro methods to evaluate skin permeation and retention of sunscreens, highlighting the importance of assessing sunscreen penetration due to widespread nanomaterial usage and advancements in cosmetic formulation.

In this study, a combined regimen of an oral supplement with Pinus pinaster, Grape seed extract, vitamins, and minerals, plus high SPF sunscreen, significantly improved mild-to-moderate facial melasma in 30 women over 84 days, reducing pigmentation and enhancing cosmetic appearance with no reported adverse effects.

This review paper highlights the development and application of organic and biogenic nanocarriers for delivering bioactives, focusing on eco-friendly and sustainable nanotechnology strategies while addressing challenges like toxicity and paving the way for future innovations in green solution approaches.

This article outlines the evolving role of cosmetics in enhancing confidence and attractiveness, highlighting their ability to address skin and hair concerns with active ingredient serums.

This review discusses the antioxidant and photoprotective potential of Polypodium leucotomos for use as a natural sunscreen ingredient and reports no new experimental results; further studies are recommended to evaluate its effectiveness.

This review discusses the effects of visible light on human skin, highlighting its role in pigmentation, thermal damage, and the treatment of several skin conditions, while noting limited sunscreen protection against it; no new clinical results are reported.

This chapter reviews nanotechnology in cosmetics, detailing various formulations, performance assessment methods, and evolving regulations, while discussing safety, stability, and effectiveness concerns; it reports no new experimental results.

This review explores the application of nanotechnology in cosmetics, highlighting its role in enhancing skin penetration, sustaining drug action, and protecting against UV radiation, while also addressing regulatory considerations and potential exposure routes.

This study found that ZnO nanoparticles in topical skin products do not penetrate beyond the outer skin layers in humans, suggesting minimal safety concerns for subdermal absorption.

This review examines the roles and benefits of chitosan in cosmetics and oral hygiene, highlighting its potential in the cosmeceutical market, but it reports no new results.

This review reports on the dual aspect of fullerene in skincare, highlighting its beneficial antioxidant properties as well as potential toxicity and skin cell reactions, while identifying areas for future research.

This review discusses the challenges and contradictions in understanding nanoparticle penetration and toxicity in human skin, emphasizing the need for standardized testing and further research on particles smaller than 10 nm.

This article discusses the foundational concepts of nanotechnology and its contributions to dermatology and medicine, but does not present new research findings.

This study found that while participants in Jeddah, Saudi Arabia, had good knowledge about Vitamin D and recognized sunlight as a key source, there was inconsistency in their attitudes towards maintaining adequate Vitamin D levels.

Hyperpigmentation is common in pregnancy and may not fully fade after birth; melasma, also frequent, can persist but has limited treatment options during pregnancy.

This review explores adult female acne, focusing on its multifactorial causes, treatment options, and impact on quality of life, but reports no new clinical results.

This review synthesizes research on solar radiation's multifaceted effects on skin and recent advancements in sunscreen technology, including formulation, testing methods, and the use of AI, to inform future sun protection product development.

This review evaluates the potential of natural products from marine microorganisms for cosmetic applications and reports no new experimental results, highlighting challenges and prospects in their use.

This review discusses the role of zinc and its transporters in skin health and disorders, providing an overview without presenting new clinical results.

In this study, compliance with UV protection recommendations was highest among vitiligo patients compared to those with other cutaneous immune-mediated inflammatory dermatoses, indicating a need for tailored education to improve compliance across all groups.

This review compiles existing research on infrared radiation's effects on human skin, noting both its potential harmful thermal impacts and encouraging therapeutic applications, but reports no new clinical results.

This review found that exposure to pollutants like PM, NOx, and PAHs is linked to various skin and hair disorders, indicating a need for cosmetics with natural adsorbents to reduce pollutant effects, achieving 30-55% removal efficiency.

This study developed an organic hair conditioner using chitosan-thiadiazole conjugates that showed improved hair detangling, moisture retention, and protection without causing irritation, promising an environmentally sustainable approach to hair care.

This study used advanced optical imaging techniques to investigate nanoparticle and dye penetration in human skin, finding that nanoparticles mainly resided in the stratum corneum and accumulated in skin folds and hair follicles, while highlighting that sunscreen-based nanoparticles appear unlikely to pose safety concerns.