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This review suggests that platelet-rich plasma may be a promising treatment for immune-mediated alopecias, including alopecia areata and primary cicatricial alopecias, but definitive recommendations are limited due to insufficient high-quality evidence.

This review examines the anti-alopecia effects of plant-derived phytochemicals and their mechanisms for promoting hair growth, but it reports no new clinical findings.

This review discusses the potential benefits and biological activities of MSC secretome for various skin applications, but it reports no new clinical results.

This study found that bovine lactoferrin promotes hair growth in mice by enhancing dermal papilla cell proliferation through the Erk/Akt and Wnt signaling pathways.

This study suggests that Houttuynia cordata extract may promote hair growth by stimulating dermal papilla cell proliferation and extending the anagen phase through enhanced energy metabolism and gene expression changes.

This study found that HMGB1 enhanced hair growth by stimulating PGE2 production in human dermal papilla cells, suggesting a potential therapeutic target for alopecia treatment.

This study found that intradermal administration of adipose-derived stem cell–conditioned medium significantly increased hair density and dermal thickness, suggesting potential regenerative effects on both hair follicles and the interfollicular scalp in patients with alopecia.

This review discusses the isolation, structure, and bioactivity of lignans and neolignans from 2016 to mid-2018, reporting no new clinical results but highlighting their potential protective properties against diseases such as cancer and neurodegeneration.

In this study, exosomes isolated from fibroblast secretome and applied to the skin improved aging parameters like wrinkles and sagging over 12 weeks, suggesting these exosomes may enhance skincare formulations if their biological activity remains stable.

This study demonstrated that Periplaneta americana extract significantly promoted hair regeneration in depilated mice by enhancing superoxide dismutase activity, upregulating vascular endothelial growth factor, modulating the FOXO/PI3K/AKT pathway, and restoring skin microbiome balance, suggesting its potential as a novel therapeutic candidate for alopecia.

This study found that Rab27a and Rab27b play opposite roles in hair growth, with Rab27a knockdown suppressing and Rab27b knockdown promoting hair growth in models.

This genetic study identified a potential interval for the Marie Unna hypotrichosis gene but found no mutations in the nearby hr gene, suggesting its involvement remains unconfirmed.

This laboratory study found that activated platelet‐rich plasma supernatant enhanced hair growth signaling pathways in cultured human dermal papilla cells, suggesting potential for treating androgenic alopecia.

This review proposes a treatment protocol for androgenetic alopecia using platelet-rich plasma, but reports no new clinical results, highlighting the need for standardized preparation and assessment methods.

In this study, activated platelet-rich plasma injections significantly increased hair count, density, and the anagen/telogen ratio in men with androgenetic alopecia, compared to placebo, suggesting it as a safe alternative to medical treatments for early-stage alopecia.

This expert group provided recommendations for preparing and using platelet-rich plasma in treating androgenetic alopecia, suggesting a manual double-spin method and specific dosing, although further studies on injectable platelet-rich fibrin are needed.

This study found that topical cilostazol promotes hair growth, enhances hair follicle activities, and may serve as a potential treatment for alopecia.

This review highlights recent advances in understanding how the extracellular matrix regulates epidermal stem cell fate, emphasizing the importance of the hair follicle stem cell niche, but reports no new empirical findings.

This study found that two microRNAs, oar-miR-23b and oar-miR-133, inhibit the development of hair follicles in superfine wool sheep by targeting genes involved in key signaling pathways, suggesting their potential use as molecular markers for breeding fine wool sheep.

This review examines around 68 plant sources from six major plant families, assessing their scientific rationale and use by the cosmeceutical industry for applications like anti-ageing and sun protection.

This article reviews various hair growth and hair loss treatments, noting limited new developments since FDA-approved drugs but highlights recent cosmetic surgery and potential cell-based therapies; it reports no original findings.

This article reviews treatment options for Alopecia Areata, concluding that topical corticosteroids are effective for mild cases, while systemic therapies are advised for moderate to severe cases.

This study found that platelet-rich plasma therapy may effectively treat androgenetic alopecia and could potentially replace topical minoxidil, offering promising results in terms of hair growth and patient satisfaction.

This review highlights the promise of small extracellular vesicles (sEVs) as biomarkers for sepsis, emphasizing their potential to improve early detection and guide therapeutic decisions by reflecting the immune status and pathogen presence in patients.

This review reports that Dang Gui (Radix Angelica sinensis) possesses bidirectional immunoregulatory effects, enhancing immune cell proliferation and function, and may benefit immune-related diseases such as cancer and anemia. It also evaluates regulatory and safety aspects, aiming to guide future research and clinical use.

This study found that applying deer antler extract to rat skin wounds enhanced hair growth and increased IGF-I expression, suggesting potential use in hair growth products.

In a mouse model of androgenetic alopecia, this study found that a novel hydrogel containing minoxidil-incorporated engineered exosomes (Gel@MNs) enhanced hair regeneration more effectively than conventional minoxidil, increasing hair follicle number and size while reducing skin irritation.

This review discusses how epidermal Langerhan's cells and dermal cells may influence keratinocyte environments, potentially aiding in the formation of stem cell niches and cellular variety in the basal layer, without providing novel results.

In this Phase II study, BAY 43–9006, taken orally for renal cell carcinoma, stabilized disease in 30% of patients, with 40% responding positively, although the targets remain unclear.