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In this review, researchers explored the roles of vitamins A, B3, C, D, and E in skin immunity, highlighting their potential as therapeutics for skin diseases due to their antioxidant, anti-inflammatory, and antimicrobial properties.

In this preclinical study, PA-011 derived from Periplaneta americana showed significant hair regrowth effects in androgenetic alopecia mouse models by inhibiting inflammation and oxidative stress, activating hair follicle stem cell proliferation, and normalizing skin microbiota, suggesting promise as an AGA treatment.

This review assessed dermo-cosmetic treatments using prebiotics, probiotics, synbiotics, and other biotics for acne and scalp disorders, finding potential benefits, especially with multi-strain or synbiotic formulations, although challenges like formulation stability and the need for larger trials persist.

This study found that women who wear the hijab have a different scalp microbiome composition compared to those who do not, with specific bacteria and fungi more prominent in each group, suggesting a higher susceptibility to seborrheic dermatitis among hijab wearers.

This review discusses the role of the skin microbiome in maintaining health and modulating atopic dermatitis, emphasizing the need for novel therapeutic strategies, but reports no new clinical results.

This review discusses the protective roles of skin-resident immune cells in maintaining tissue homeostasis and facilitating wound healing, but reports no new experimental findings.

This study examined recent findings on the role of host-microbiome interactions in acne, highlighting that the skin's microbiome composition differs between acne-affected and healthy individuals and discussing emerging microbiome-based treatments.

This review suggests that skin may largely protect itself from CYP-generated reactive metabolites due to higher conjugating enzyme activities, while highlighting limitations in modeling human skin metabolism experimentally.

This study observed that the cutaneous microbiome in psoriasis patients differs both qualitatively and quantitatively from healthy individuals, suggesting a potential link to psoriasis pathogenesis.

The document concludes that better understanding the wound microbiome can improve chronic wound care by preserving helpful bacteria and targeting harmful ones.

This review suggests that the gut microbiome and metabolome may play a significant role in alopecia areata and emphasizes the potential of targeting these factors for improved prevention, diagnosis, and treatment strategies for this skin condition.

This study found that bacterially induced metabolic changes in stem cells can enhance skin and hair follicle regeneration in both mice and humans, suggesting potential strategies for improving recovery after injury.

This review explores the emerging role of postbiotics—such as inactivated bacteria, cell components, and metabolites—in enhancing wound healing and skin microbiome health, highlighting evidence from various preclinical and preliminary clinical studies.

This study found that restoring the skin microbiome significantly improved hair growth and skin condition in androgenic alopecia model mice by modulating the immune-inflammatory balance, highlighting the potential of bacterial-based therapies for hair loss.

This review provides a comprehensive synthesis of skin aging research, highlighting the interplay of genetic and environmental factors, cellular mechanisms, and advances in diagnostic and therapeutic strategies, while also addressing current debates and future directions in the anti-aging field.

In this study, researchers explored the formation of the skin's epidermal barrier, its interplay with skin microbiota, and the role of skin appendages, suggesting that probiotics might offer promising avenues for treating scalp diseases, particularly those affecting hair loss.

This review highlights recent advancements in engineered probiotics for wound healing, reporting that genetically engineered strains of Lactobacillus reuteri and Lactococcus cremoris have shown promise in promoting faster wound healing in pre-clinical and clinical settings, particularly for diabetic foot ulcers.

This narrative review explored the complex interconnections between psoriasis and other dermatological conditions like vitiligo, alopecia areata, and atopic dermatitis, highlighting shared immune dysfunctions that complicate diagnosis and treatment, with implications for research and holistic patient care.

This review highlights evidence supporting the potential of blue light therapy as a non-invasive treatment for managing skin and hair conditions by modulating interactions between the skin microbiome and its host.

In this study, researchers observed that heat stress significantly affected hair and skin traits in two indigenous goat breeds, with Kodi Aadu goats demonstrating greater thermal resilience compared to Kanni Aadu goats, potentially due to differences in gene expression and methylation.

This review discusses the possible roles of skin and intestinal microbiota in acne pathogenesis and covers related research on traditional Chinese medicine treatments, without reporting new clinical results.

This review examines the potential pathogenicity of Demodex mites in skin disorders, considering systemic factors like immunological imbalance and microbiome changes, but reports no new clinical findings.

This paper highlights the role of the skin microbiome in influencing skin and hair conditions, suggesting that understanding these microbial communities could aid in developing new probiotic or antibiotic treatments for disorders like alopecia and skin diseases.

This study reviewed 55 studies to assess the bacterial microbiome in hair follicles across different inflammatory skin and hair conditions, reporting shifts in the abundance of Cutibacterium and Staphylococcus among various diseases, though the causal significance remains unclear.

This study reports that disruptions to the scalp microbiome from invasive cosmetic procedures may contribute to dermatological conditions, and suggests incorporating microbiome assessments and personalized restoration programs into trichological and dermatological practices.

This review explores the hair follicle microbiome's interaction with the immune system, discussing its potential clinical implications for scalp health and disease but reports no new clinical results.

This study introduces the concept of a "gut–brain–skin axis" where ingesting a specific Lactobacillus strain in mice may reduce stress-induced skin inflammation and hair growth inhibition.

This review summarizes current knowledge on tight junctions in mammalian skin and their role in drug delivery and interaction with other barrier components, but reports no new experimental results.

This review discusses the multiple factors contributing to skin aging, including cellular changes and environmental influences, and highlights its recognition as a disease with significant implications beyond cosmetic concerns, without reporting new research results.

This review explores the potential roles of the gut and skin microbiome in alopecia areata, suggesting topical and systemic strategies for managing the condition, but it reports no new clinical results.