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Growth factors can either promote or inhibit hair follicle cell growth and collagen breakdown.

This study found that administering growth hormone to adult men with GH deficiency increased their sexual hair scores, suggesting an auxiliary effect on androgen action in the skin.

This study found that IGF-1 injections increased hair follicle number and growth phase duration in wild-type mice, suggesting potential for baldness treatment.

In this study, researchers found that while both beard and scalp dermal papilla cells release similar autocrine growth factors, only beard cells increased production and response with testosterone, suggesting these factors enhance androgen-induced hair growth.

This study found that phosphatidic acid promotes hair growth by stimulating cell proliferation and protecting against apoptosis in murine hair epithelial cells, unlike lysophosphatidic acid, which showed limited effects.

This study found that autophagy plays a novel role in human hair growth, with altered autophagic flux during hair development phases influencing hair follicle behavior in a preclinical model.

This study suggests that minoxidil may enhance hair growth by stimulating adipose-derived stem cell motility and growth factor secretion, promoting dermal papilla cell proliferation and accelerating anagen induction.

This study found that low-dose UVB radiation enhances the survival, migration, and hair growth-promoting capacity of adipose-derived stem cells in mice through the generation of reactive oxygen species.

Raspberry ketone may help grow hair and improve skin elasticity.

This small study observed that infusing platelet rich plasma into the scalp reversed hair miniaturization and stimulated new hair growth in patients with androgenetic alopecia and alopecia areata over 8 months.

In this study using a mouse model and human hair follicle cells, shikimic acid was found to promote hair growth and may serve as a new therapeutic agent for alopecia.

This pilot study suggests that using growth factors followed by microneedle therapy may benefit women with female pattern hair loss.

In this study, DHT was found to inhibit hair growth in mice by decreasing IGF-I production in dermal papillae through reduced sensory neuron stimulation.

This study found that serine 44 in the N-terminal head domain of keratin 17 is phosphorylated in response to various stimuli affecting skin keratinocyte growth, linking K17 up-regulation with growth and stress responses in skin epithelium.

This study found that IGF-1 likely plays a crucial role in regulating hair growth and alopecia, with balding scalp follicles secreting less IGF-1 than nonbalding counterparts.

This study found that minoxidil nanoparticles increased drug delivery to hair follicles and improved hair growth more effectively in mice than conventional minoxidil formulations.

This review introduces an integrated view of hair follicle behavior, highlighting a Yin Yang model of regulation and suggesting glycans as key elements in hair follicle growth control, without reporting new clinical findings.

In this study, adenosine was found to stimulate hair follicle growth in vitro by promoting growth factor expression, β-catenin activation, and downstream signaling pathways.

This study developed an in vitro model using human follicular keratinocytes to observe selective cell growth and differentiation, potentially aiding future research on hair biology and growth processes.

This study found that cytokine and EGF stimulation leads to increased MMP-9 production in hair follicles, a process involved in hair follicle involution associated with alopecia.

In this study, oral administration of Crataegus pinnatifida extract was associated with hair growth promotion in mice by inducing anagen phase and enhancing cell signaling related to hair follicle development.

This study found that advanced platelet-rich fibrin (A-PRF) reduced postoperative complications like pain, trismus, and edema following mandibular wisdom teeth removal.

This study explored the effects of a new narrow-band red LED light on hair growth in mice, showing potential benefits compared to existing laser therapies.

This study found that resveratrol and fisetin promoted hair growth in mice by inducing telomerase reverse transcriptase expression, which activates hair follicle stem cells and transitions follicles from a resting to a growth phase.

This study found that Erica multiflora extract promotes hair growth by enhancing dermal papilla cell activity and shifting hair follicles from the telogen to the anagen phase in both in vitro and in vivo models.

This presentation reviews recent discoveries about signaling mechanisms in hair follicles and their potential influence on hair cycle control and melanogenesis, without presenting new experimental results.

This study found that nutritional deficiencies and gastrointestinal abnormalities are uncommon in children with ichthyosis and growth failure, suggesting chronic hypovolemia may be more prevalent in this group.

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

This study found that human umbilical cord blood mesenchymal stem cells promoted hair growth by advancing anagen onset and increasing hair follicle regeneration in an in vivo model.

This study found that Tsukushi facilitates wound healing in mice by regulating macrophage function and myofibroblast differentiation.