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The authors conclude that optimizing hair shaft production and appearance may best be achieved by integrating biological, chemical, and physical intervention strategies.

This review identifies agri-food by-products as promising sources of antioxidant compounds for cosmeceutical applications, examining their potential for skin, oral, and hair care, while noting the need for further research on safety and clinical efficacy.

In this study, researchers developed a novel periodate oxidation method for extracting keratin micro-units from waste hair and feathers, achieving yields of 31.28% and 20.64% respectively, enhancing the stability of oil-in-water emulsions and suggesting potential for sustainable biomaterial production.

This study reviews the potential to repurpose human hair waste, often discarded from places like barber shops and hospitals, into valuable raw materials for chemical and materials science applications, despite existing challenges in its utilization.

This research demonstrated that transforming pomelo peel into expanded sponges and carbonized aerogels can accelerate hemostasis and enhance healing in diabetic wounds while eradicating bacterial biofilms, offering an eco-friendly solution for wound care from agricultural waste.

This paper discusses strategies for creating sustainable cosmetic emulsions, highlighting the use of food waste, fermentation processes, and low-energy emulsification methods to minimize carbon footprint while preserving the bioactive properties of raw materials.

This study found that blueberry waste in Australia has high phenolic content and antioxidant potential, suggesting potential uses in food, pharmaceutical, and nutraceutical industries.

This study found that human hair fibers significantly improve the shear behavior of dry sand, but under saturated conditions, the reinforcement sustains shear strength similar to unreinforced sand.

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.

In this study, phenol-enriched olive mill wastewater extract positively influenced hair growth in vitro by promoting human dermal papilla cell proliferation, increasing insulin-like growth factor-1 secretion, and reducing reactive oxygen species, suggesting it may be beneficial for hair care.

This article reviews the need for a reliable and safe method to prevent alopecia areata from progressing to more severe states and reports no new research findings.

This study synthesized silver nanoparticles using Gandaria stem bark extract, finding that nanoparticles at a 4% concentration were particularly effective for selectively detecting mercury over lead and calcium, making them suitable as preliminary detection materials for mercury in facial whitening creams.

The researchers monitored various pollutants in real cosmetics industry wastewater and reported high removal efficiencies for parameters like Chemical Oxygen Demand and heavy metals through coagulation-flocculation, yet suggested that more effective COD treatment alternatives are necessary to better protect the environment and human health.

This study suggests that a supercritical CO2 extract from wild-strawberry-processing waste may be an innovative and sustainable ingredient for cosmetic applications, particularly in treating androgenic-related skin conditions.

This study found that incorporating keratin extracted from hair into NBR modestly enhanced the mechanical properties and biodegradability of the rubber.

This study examined the drying of pomegranate peel as a method for reducing waste and found that drying efficiency varied with temperature and air velocity, potentially adding value to this by-product.

This study found that adding sheep wool-waste or human hair-waste to soil increased yields and secondary metabolites in various crops and supported up to five harvests without additional fertilizers, though it decreased mycorrhizae colonization.

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.

In this study, researchers found that mangosteen pericarp extract, combined with FeSO₄ as a mordant, effectively produced a stable reddish hair dye on bleached hair, with good color persistence and enhanced tensile strength, indicating its potential as an eco-friendly and safer alternative to synthetic dyes.

This study identified that the pruning woods from Juniperus phoenicea and Juniperus thurifera could serve as renewable sources of bioactive natural products, with compounds like cedrol showing potent antitick and antifungal activities.

This study highlights promising methods for converting food waste into valuable resources such as biogas, bioethanol, biodiesel, fertilizers, and antioxidants through processes like fermentation and anaerobic digestion, emphasizing the need for robust large-scale technologies to optimize this "waste to value" transformation.

Researchers developed a method to detect hormone-blocking drugs in wastewater and found them in Beijing's sewage, suggesting they can survive sewage treatment.

This review discusses the potential of solid-state fermentation for extracting polyphenolic compounds from agro-industrial wastes, but it reports no new experimental results.

In this study, researchers developed hair and foot care products using tofu whey instead of water, highlighting its potential to conserve water and utilize protein-rich waste, though specific efficacy results are not reported.

This study evaluated polyherbal formulations for managing hair issues such as dandruff, dryness, premature greying, baldness, and hair fall, but it reports no new clinical results.

This study assesses the effectiveness of polyherbal formulations in managing hair issues such as dandruff, dryness, premature greying, baldness, and excessive hair fall, in response to increasing hair loss among younger individuals due to stress, poor diet, and chemical use.

This study found that an Enterobacter isolate demonstrated high resistance to selenate and effective sorption capacity, suggesting potential for bioremediation of selenium-contaminated environments.

This study found that serum containing keratin extract from chicken feathers combined with Aloe vera showed promising effectiveness for anti-hair loss treatment, with certain combinations outperforming the positive control in measures of hair strength and growth in rabbits.