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This study observed that repeated perm treatments decrease disulfide bonds in hair due to their conversion largely into cysteic acid, affecting the waving efficiency depending on the reduction agent used.

This study demonstrated that high doses of L-cystine and vitamin B6 effectively prevent doxorubicin-induced hair loss in mice.

In this study, a mixture of tocopherol acetate, L-menthol, and stevioside was more effective in promoting hair growth in mice compared to tocopherol acetate or L-menthol alone.

This study found that L-glutamine supplementation in Hanwoo steers under heat stress did not affect growth performance or muscle and adipose tissue gene expression but was associated with increased immune cells and reduced HSP90 expression.

In this study, tresses treated with pH 1.0 acid straightener showed better straightening but more damage to hair properties compared to those treated with pH 2.0.

In this clinical trial, supplementation with Lambdapil® Anti Hair Loss capsules for 6 months significantly improved hair resistance and volume in women and increased the anagen/telogen hair ratio in men, indicating enhanced hair growth compared to the placebo group.

This study found that a combination of oral compounds improved metabolic activity, cell viability, and proliferation in hair follicular keratinocytes, with L-cystine playing a key role in protection against oxidative stress.

This article highlights the need for dermatologists to define evidence-based standards to provide high-value care and reduce unnecessary testing, as recommended by the American Academy of Dermatology.

This study found that combining diagonal earlobe crease with lipoprotein(a) provides strong diagnostic value for coronary heart disease.

In this study of women aged 18-45 from an endocrine referral group, researchers found that while clinical hirsutism severity is independently associated with biochemical hyperandrogenism, the relationship is modest and suggests different biological aspects are at play.

This study suggests that L-(+)-Tartaric Acid may support hair growth by up-regulating certain genes in human Dermal Papilla cells, making it a potentially useful additive in minoxidil formulations.

This study explored the structure and function of lipocalin prostaglandin D synthase, revealing its dual role in substrate catalysis and as a lipophilic ligand carrier, potentially informing future drug delivery design.

This review emphasizes the potential of repurposing topical L-thyroxine for skin ulcers and telogen effluvium and highlights the need for further exploration of its use in dermatology.

In this study, EPC-K, a compound with antioxidant and moisturizing effects, was found to decompose significantly under certain conditions, impacting its stability in quasi drug hair-growing products.

This study found that sulforaphane may help alleviate hair loss by increasing hair count after 18 weeks of use and enhancing the expression of a DHT-degrading enzyme in cellular models.

This study found that L-cystine-modified rabbit hair fibers had improved dye adsorption and spinnability, due to changes in secondary structure and surface characteristics.

In this study, researchers found that supplementation with L-cystine, either alone or with a keratin hydrolysate, significantly improved hair density, hair and nail brightness, and nail growth in women experiencing acute telogen effluvium and brittle nail syndrome over three months.

This study found that serum steroid profiling, particularly 11-deoxycortisol, can effectively differentiate between ACC and ACA, while considering sex differences and functional status for other steroids is important.

This research found that a biodegradable fibrous membrane incorporating fibroblast-derived ECM accelerated wound healing and improved neovascularization in a mouse model.

This study observed that patients with AA showed a high willingness to trade off lifespan for better disease-specific quality of life, indicating a significant disease burden.

This review discusses the medicinal uses and phytochemical composition of Eclipta alba and reports no new clinical findings; the authors suggest its potential therapeutic significance due to complex interactions of its constituents.

This study reported that trichoscopy is a more effective diagnostic tool than the trichogram for early diagnosis of FAGA, regardless of hair shaft diversity cut-off levels.

This article discusses the limitations of relying on literature and regulatory documents for pharmaceutical evidence, proposing public health decisions be based on independent trials like those by the Mario Negri Institute.

In this study, PDO, PLLA, and PCL thread implants in ageing rat skin did not alter MMP1 gene expression but maintained collagen levels similar to young skin without UV-B exposure, suggesting possible benefits for skin collagen but not gene expression modification.

This study observed that biodegradable PVA/agar films with incorporated Achillea millefolium L. essential oil, especially at 1% (v/v), demonstrated good mechanical performance and selective antibacterial activity against E. coli, suggesting their potential as wound dressings.

This review explores the medicinal properties of Eclipta alba and its phytoconstituents and reports their potential for developing new drugs, but presents no new research results.

This review summarizes the ethno-medicinal uses, phytochemical constituents, and biological activities of Acorus calamus, highlighting its potential therapeutic benefits and the importance of further scientific work on this plant.

This review discusses the ethnobotanical uses and phytochemistry of Plumbago zeylanica L., highlighting its potential pharmacological benefits for conditions such as diabetes and cardiovascular disorders, but reports no new experimental findings.

Hair amino acid levels can indicate metabolic disorders.

This review discusses the ethnobotanical use and bioactivity of Eclipta prostrata, highlighting its potential in treating various conditions and linking its effects to secondary metabolites.