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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 discusses the potential of protein-based cosmetics, including keratin-based particles and fusion proteins, to improve hair properties such as strength and shape, but it reports no new clinical results.

This review highlights the potential of Coffea arabica as an active ingredient in skincare, noting its bioactive compounds from leaves and beans show promising anticellulite, anti-inflammatory, antioxidant, and anti-aging properties, with unique phenolic concentrations in leaves offering enhanced skin benefits.

This review highlights that Trigonella foenum-graecum L. (fenugreek) shows promise as a versatile plant-based ingredient in cosmetics due to its phytochemicals, which offer benefits for skin and hair care, although further research is necessary for robust validation.

In this study, a newly developed polyherbal hair oil exhibited promising characteristics, including a beneficial pH and antimicrobial activity against Staphylococcus aureus, with preliminary tests suggesting it supports scalp and hair health without adverse effects.

This review assessed a traditionally prepared herbal hair oil, finding it exhibited favorable physicochemical properties and stability, with no skin irritation, suggesting it may be a safe natural alternative to synthetic hair care products for promoting healthy hair and scalp.

This review highlighted the potential benefits of herbal hair oils as a natural alternative to synthetic hair care products, noting that a traditionally prepared formulation demonstrated favorable physicochemical properties and no skin irritation, while promoting healthy hair and scalp.

Bee pollen, green tea, essential oils, and various plant extracts improve skin and hair health.

This review outlines strategies for regulating macrophage response using bioactive materials to enhance wound healing, focusing on extracellular matrix-based scaffolds and nanofibrous composites, but reports no new clinical results.

In this study, fMRI results suggested that mechanical stimulation evoked a stronger prickle sensation comprising both pain and itch on hairy skin compared to glabrous skin.

This study found that hair follicles are a significant and efficient pathway for the absorption of topical minoxidil foam in humans, with faster blood detection when follicles are open.

This article discusses the role of emollient therapy in managing atopic eczema and other dry skin conditions and reports no new clinical findings.

This study found that red ginseng oil (RXGIN) significantly improved lower urinary tract symptoms and some aspects of sexual function in men, with no serious adverse events reported.

This review summarizes the link between acne pathogenesis and skin barrier dysfunction, noting that more severe acne correlates with greater skin barrier damage, but reports no new clinical results.

This study found that treatment with a synthesized autophagy inducer improved skin barrier function and hair damage in dogs with atopic dermatitis or hyperadrenocorticism by reducing pro-inflammatory cytokines.

SesZen-BioTM improves skin health and reduces signs of aging.

The researchers found that plant extracts from Papaver rhoeas L., Clitoria ternatea L., and Carthamus tinctorius L. are effective natural cosmetic dyes, offering intense and stable colors without cytotoxicity.

This study examined the evolutionary and functional homology of steroid 5α-reductase and DET2 proteins, identifying protists as a common ancestor, and discovered a new subclass DET2-like in plants, potentially involved in polyprenol reduction.

This narrative review examines the structure-function relationship in bioactive biopolymers used to promote healing in chronic wounds, emphasizing diabetic ulcers, and underscores the importance of characterizing these biopolymers to enhance their bioactivity for better tissue regeneration outcomes.

In this study, researchers developed microcapsules and effervescent tablets containing policosanol from insect wax, achieving high encapsulation efficiency and rapid water dispersion, effectively addressing the challenges of solubility and psychological acceptance in consuming insect-based lipids.

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.

NUL-5 may boost hair growth by improving hair follicle health and structure.

This review discusses the potential health benefits of probiotics as a "Bio-Therapy" in food and medicine, noting that more research is needed to fully understand their mechanisms and effectiveness.

This review highlights the potential of valorizing vegetable waste by extracting valuable biomolecules for use in food, nutraceuticals, and energy, noting that while promising methods exist, several niche areas lack sufficient research on a global scale.

This review highlights the role of plant-derived organic selenium compounds, noting their high bioavailability and low toxicity, and provides a comprehensive overview of selenium's uptake in plants and metabolism in humans, offering a theoretical basis for future nutritional research.

This review discusses the potential of olive mill wastewater as a valuable source of dermatological ingredients, highlighting its antioxidant and anti-inflammatory properties, but reports no new clinical results.

This review analyzed current studies on metabolite production from the medicinal fungus Cordyceps militaris, focusing on its fermentation modes and biological functions, and emphasizes the need for modern fermentation processes to enhance industrial production.

In this study, researchers found that a scallop adhesive protein (Sbp9 Δ) forms strong adhesive coatings via disulfide-sticker strategies, which also promote hair regeneration in mouse models by activating Wnt signaling and enhancing angiogenesis, proving more effective than minoxidil for androgenetic alopecia.

In this study, researchers developed vegan exosome-like vesicles from microalgae that mimic mammalian exosomes, demonstrating promising in vitro, ex vivo, and clinical effects such as improved wrinkle depth and elasticity, making them a potential alternative in cosmetic applications.

This study developed a biodegradable nonwoven textile using a starch-based biopolymer and fruit extracts, resulting in materials that are stronger, more hydrophilic, and capable of releasing beneficial compounds over 72 hours, positioning them for potential use in medical, healthcare, and cosmetic applications.