Promote Hair Growth Research Articles

AP collagen peptides (APCPs) promote hair growth by activating the GSK-3β/β-catenin pathway and improve hair condition.

AP collagen peptides (APCPs) are enzymatically decomposed collagen peptides that contain tri-peptides such as glycine-proline-hydroxyproline. We found that APCPs increased the proliferation of both human dermal papilla cells (hDPCs) and human outer root sheath cells (hORSCs). APCPs also stimulated the secretion of several growth factors, including IGFBP-6, PDGF-AB, PIGF and VEGF in hDPCs. Moreover, APCPs enhanced the phosphorylation of Akt(Ser473), GSK-3β(Ser9) and β-catenin(Ser675), indicating the activation of the GSK-3β/β-catenin signalling pathway. Exvivo culture of human hair follicles (hHFs) tissue and invivo patch assay revealed that APCPs promoted the elongation of hHFs and the induction of new hair shafts. In a mouse model, APCPs significantly promoted the transition from telogen to anagen phase and prolonged anagen phase, resulting in increased hair growth. APCPs also improved the thickness, amino acid content (cystine and methionine) and roughness of mouse hair. Taken together, these findings demonstrate that APCPs accelerate hair growth and contribute to overall hair health. Therefore, APCPs have the potential to be utilized as a food supplement and ingredient for preventing hair loss and maintaining hair health.

Delivery of minoxidil encapsulated in cyclodextrins with photoacoustic waves enhances hair growth

The current pharmacological management of androgenetic alopecia is inconvenient and requires a discipline that patients find difficult to follow. This reduces compliance with treatment and satisfaction with results. It is important to propose treatment regimens that increase patient compliance and reduce adverse effects. This work describes transdermal delivery of minoxidil partially encapsulated in β-cyclodextrin and assisted by photoacoustic waves. Photoacoustic waves transiently increase the permeability of the skin and allow for the delivery of encapsulated minoxidil. A minoxidil gel formulation was developed and the transdermal delivery was studied in vitro in the presence and absence of photoacoustic waves. A 5-min stimulus with photoacoustic waves generated by light-to-pressure transducers increases minoxidil transdermal delivery flux by approximately 3-fold. The flux of a 1% minoxidil formulation promoted by photoacoustic waves is similar to the passive flux of a 2% minoxidil commercial formulation. Release of minoxidil from β-cyclodextrin increases dermal exposure without increasing peak systemic exposure. This promotes hair growth with fewer treatments and reduced adverse effects. In vivo studies using encapsulated minoxidil and photoacoustic waves yielded 86% hair coat recovery (vs. 29% in the control group) and no changes in the blood pressure.

1,25-(OH)2D3 promotes hair growth by inhibiting NLRP3/IL-1β and HIF-1α/IL-1β signaling pathways

Vitamin D is a crucial vitamin that participates in various biological processes through the Vitamin D Receptor (VDR). While there are studies suggesting that VDR might regulate hair growth through ligand-independent mechanisms, the efficacy of Vitamin D in treating hair loss disorders has also been reported. Here, through in vivo experiments in mice, in vitro organ culture of hair follicles, and cellular-level investigations, we demonstrate that 1,25-(OH)2D3 promotes mouse hair regeneration, prolongs the hair follicle anagen, and enhances the proliferation and migration capabilities of dermal papilla cells and outer root sheath keratinocytes in a VDR-dependent manner. Transcriptome analysis of VDR-knockout mouse skin reveals the involvement of HIF-1α, NLRP3, and IL-1β in these processes. Finally, we confirm that 1,25-(OH)2D3 can counteract the inhibitory effects of DHT on hair growth. These findings suggest that 1,25-(OH)2D3 has a positive impact on hair growth and may serve as a potential therapeutic agent for androgenetic alopecia (AGA).

Herbal Extracts for Hair Growth and Skin Rejuvenation: A Potential Solution for Hair Fall and Enhancing Skin Glow

Hair loss can have significant psychological and sociological impacts on individuals, affecting how they perceive themselves and are perceived by others. Globally, there has been a rise in the proportion of both men and women experiencing hair loss or thinning hair. Dermatological disorders, including alopecia, are common causes of hair loss, leading to a constant search for natural products that may promote hair growth. Several factors contribute to hair loss, including stress, major illnesses, medication use, depression, autoimmune diseases, family history, hormonal imbalances, and nutritional deficiencies. In India, approximately 50% of the population is experiencing hair loss at an accelerated rate, partly due to the use of inferior hair products in the beauty industry. Various herbs have been identified for their potential to promote skin renewal and hair development. These include Ficus religiosa, Ficus bengalensis, coriander seeds, rock sugar, and Chlorophytum borivilianum. These herbs contain nutritional components that can help manage hormonal imbalances and stimulate hair growth. Herbal formulations offer a natural and potentially effective solution for hair loss management. They can be tested for quality control and evaluation to ensure their safety and efficacy. These formulations may serve as immunoboosters or highly nutritious compositions, providing additional health benefits beyond hair care. Importantly, such remedies are typically associated with minimal or no negative side effects, making them a preferred option for individuals seeking natural approaches to address hair loss and related concerns.

Does Propecia Cause More Harms than Good: Assessing Reproductive and Non-Reproductive Effects of Finasteride on Male Health

Finasteride (marketed as Propecia) is a potent 5α-reductase inhibitor used as first-line treatment for male pattern baldness. Despite finasteride’s efficacy in promoting hair growth, there is concern about its impact on male reproduction because finasteride use has been linked to reduced libido, erectile dysfunction, and potential spermatogenic failure. The drug has also been documented to induce nonreproductive adverse effects such as depression. Current research suggests that finasteride’s alteration of neurosteroid hormone levels may be contributing to these adverse effects. This article used evidence-based research to evaluate finasteride’s short- and long-term effects on male reproductive health. In summary, there appears to be contradictory evidence within the literature with data both in support and in opposition of finasteride’s adverse effects. There does, however, seem to be consensus on the incidence of these cases being quite low within both research and clinical settings.

Formulation and Evaluation of Herbal Shampoo From Coriander

The main goal of this research is to develop and assess a herbal shampoo, focusing on its physicochemical properties, safety, efficacy, and quality. Herbal shampoos serve as natural hair care products that eliminate grease, dirt, and dandruff while promoting hair growth, strength, and thickness. Additionally, they enhance the softness, smoothness, and shine of hair. Conventional cosmetic shampoos contain various synthetic substances that can lead to side effects such as hair loss, increased dandruff, itching, pain, nausea, and headaches. Therefore, there is an increasing effort to create herbal shampoos that do not have these adverse effects. This study aims to eliminate harmful synthetic ingredients from shampoo formulations and substitute them with safe, natural alternatives

Discovery of petroleum ether extract of eclipta targeting p53/Fas pathway for the treatment of chemotherapy-induced alopecia: Network pharmacology and experimental validation

Ethnopharmacological relevanceEcliptea herba, a traditional Chinese herbal medicine for hair loss, was first recorded in the Tang Dynasty's ‘Qian Jin Yue Ling’, of which the active ingredients and mechanisms of action in the treatment of chemotherapy-induced hair loss remain poorly investigated. Aim of the studyTo investigate the effects of the petroleum ether extract of Eclipta (PEE) on alopecia and follicle damage and elucidate its potential therapeutic mechanisms using the integration of network pharmacology, bioinformatics, and experimental validation. Materials and methodsUPLC-MS was used to analyse the chemical composition of PEE. A network pharmacology approach was employed to establish the ‘components-targets-pathways’ network of PEE to explore potential therapeutic pathways and targets. Molecular docking was used for validation, and the mechanism of PEE in treating chemotherapy-induced alopecia (CIA) was elucidated using in vitro and in vivo on CIA models. ResultsUPLC-MS analysis of PEE revealed 185 components, while network pharmacology and molecular docking analyses revealed potential active compounds and their target molecules, suggesting the involvement of core genes, such as TP53, ESR1, AKT1, IL6, TNF, and EGFR. The key components included wedelolactone, dimethyl-wedelolactone, luteoloside, linarin, and hispidulin. In vivo, PEE promoted hair growth, restored the number of hair follicles, and reduced follicle apoptosis. Conversely, in vitro, PEE enhanced cell viability, reduced apoptosis, and protected HaCaT cells from damage induced by 4-hydroperoxycyclophosphamide (4-HC). ConclusionsPEE alleviated hair follicle damage in CIA mice by inhibiting the P53/Fas pathway, which may be associated with inhibiting hair follicle cell apoptosis. This study provides a novel therapeutic strategy for treating cyclophosphamide-induced hair loss.

Oxidative stress in hair follicle development and hair growth: Signalling pathways, intervening mechanisms and potential of natural antioxidants.

Hair follicle development and hair growth are regulated by multiple factors and multiple signalling pathways. The hair follicle, as an important skin appendage, is the basis for hair growth, and it has the functions of safeguarding the body, perceiving the environment and regulating body temperature. Hair growth undergoes a regular hair cycle, including anagen, catagen and telogen. A small amount of physiological shedding of hair occurs under normal conditions, always in a dynamic equilibrium. Hair loss occurs when the skin or hair follicles are stimulated by oxidative stress, inflammation or hormonal disorders that disrupt the homeostasis of the hair follicles. Numerous researches have indicated that oxidative stress is an important factor causing hair loss. Here, we summarize the signalling pathways and intervention mechanisms by which oxidative stress affects hair follicle development and hair growth, discuss existing treatments for hair loss via the antioxidant pathway and provide our own insights. In addition, we collate antioxidant natural products promoting hair growth in recent years and discuss the limitations and perspectives of current hair loss prevention and treatment.

Activity Test of Combination Candlenut Oil and Olive Oil on the Hair Length

Candlenut oil and olive oil have been discovered to promote hair growth. This experimental study aimed to assess the effectiveness of a combination of candlenut oil and olive oil on the length of hair in male rabbits. The experiment involved two male rabbits, with four areas on their backs shaved to apply the test solution, each area measuring approximately 3 cm x 3 cm and spaced 2 cm apart. Hair samples were collected by shaving six strands of hair from each area on the 3rd, 6th, 9th, 12th, 15th, and 18th days. The treatment groups were divided into a negative control group that received no intervention and test groups that were treated with either candlenut oil alone, olive oil alone, or a combination of candlenut and olive oil. The results of the non-parametric Kruskal-Wallis test revealed a p-value of 0.000 (p ? 0.05), indicating a significant difference among the groups. A post hoc test was conducted to determine the group with the best hair length statistically, and it was found that the group receiving candlenut oil had the highest mean rank value, followed by the olive oil group, and then the combination of candlenut and olive oil group.

Herbal Hair Serum

Abstract: Cosmetics have gained significant popularity in the daily lives of many individuals, who often use a variety of products to enhance their beauty and elegance, with the aim of achieving a youthful and charming appearance. It is safe to say that cosmetics play a crucial role in human life. In recent times, herbal cosmetics have become increasingly popular due to the perception that they offer fewer side effects and are a safer option. [1] Hair is a fundamental aspect of an individual’s identity, and as such, it is crucial to maintain it through the use of various beauty products. In this regard, it is worth nothing that herbal formulations have demonstrated superior efficacy compared to synthetic ones while exhibiting minimal or no side effects. As such, herbal remedies represent a valuable alternative in hair care, especially for individuals with a proclivity for adverse reactions to conventional hair care products. [2] Promoting hair growth and preventing hair loss is a crucial aspect of hair care. Herbal dyes have been a popular choice among individuals, thanks to their minimal side effects and impeccable safety record. Recently, a study was conducted to develop an herbal hair serum using a variety of sauces for general hair treatment. The resultant oil was subjected to a thorough analysis, including assessments of its organoleptic properties, acid value, saponification value, viscosity, pH, and other parameters. The findings indicated that all criteria were met and fell within the accepted guidelineS

Heat-treated Limosilactobacillus fermentum LM1020 with menthol, salicylic acid, and panthenol promotes hair growth and regulates hair scalp microbiome balance in androgenetic alopecia: A double-blind, randomized and placebo-controlled clinical trial.

Androgenetic alopecia (AGA) is a common and chronic problem characterized by hair follicle miniaturization. In this study, heat-treated Limosilactobacillus fermentum LM1020 (HT-LM1020) was investigated in human follicle dermal papilla cell (HFDPC), scalp tissue, and clinical trials for patients with AGA. Cell proliferation and the expression of cyclins and cyclin-dependent kinases (CDKs) were measured in HFDPC. The relative gene expression of 5α-reductase and growth factors were investigated in hair scalp. This double-blind, randomized, placebo-controlled clinical trial was conducted over 24 weeks. Primary efficacy was evaluated by measuring hair density, and secondary efficacy was assessed by experts and self-assessment. Changes in the microbiota of the hair scalps were analyzed using 16S metagenome amplicon sequencing. HT-LM1020 promoted cell growth (p < 0.001) and cyclin B1 expression, and it reduced 5α-reductase and induced fibroblast growth factor 7 (FGF7), FGF10, and epithelial growth factor7 (EGF7) (p < 0.001). In the clinical trial, the experimental group demonstrated an increase in hair density from 133.70 to 148.87 n/cm2 at Week 24 (p < 0.001), while also expressing satisfaction with their hair density, reduced hair loss, and hairline. At Week 24, the total ratio of lactic acid bacteria operational taxonomic unit (OTU) in the scalp increased from 6.65% to 26.19%. At the same period, placebo-controlled group decreased Staphylococcus caprae OTU from 77.95% to 14.57% while experimental group decreased from 65.80% to 41.02%. These present results showed that HT-LM1020 was a co-effector of ingredients for anti-hair loss contributing to cell proliferation and the expression of CDKs.

Reprofiling synthetic glucocorticoid-induced leucine zipper fusion peptide as a novel and effective hair growth promoter.

Hair is a biofilament with unique multi-dimensional values. In human, in addition to physiologic impacts, hair loss and hair related disorders can affect characteristic features, emotions, and social behaviors. Despite significant advancement, there is a dire need to explore alternative novel therapies with higher efficacy, less side effects and lower cost to promote hair growth to treat hair deficiency. Glucocorticoid-induced leucine zipper (GILZ) is a protein rapidly induced by glucocorticoids. Studies from our group and many others have suggested that a synthetic form of GILZ, TAT-GILZ, a fusion peptide of trans-activator of transcription and GILZ, can function as a potent regulator of inflammatory responses, re-establishing and maintaining the homeostasis. In this study, we investigate whether TAT-GILZ could promote and contribute to hair growth. For our pre-clinical model, we used 9-12 week-old male BALB/c and nude (athymic, nu/J) mice. We applied TAT-GILZ and/or TAT (vehicle) intradermally to depilated/hairless mice. Direct observation, histological examination, and Immunofluorescence imaging were used to assess the effects and compare different treatments. In addition, we tested two current treatment for hair loss/growth, finasteride and minoxidil, for optimal evaluation of TAT-GILZ in a comparative fashion. Our results showed, for the first time, that synthetic TAT-GILZ peptide accelerated hair growth on depilated dorsal skin of BALB/c and induced hair on the skin of athymic mice where hair growth was not expected. In addition, TAT-GILZ was able to enhance hair follicle stem cells and re-established the homeostasis by increasing counter inflammatory signals including higher regulatory T cells and glucocorticoid receptors. In conclusion, our novel findings suggest that reprofiling synthetic TAT-GILZ peptide could promote hair growth by increasing hair follicle stem cells and re-establishing homeostasis.

Management of androgenic alopecia: a systematic review of the literature

ABSTRACT We aimed to determine the efficacy of the various available oral, topical, and procedural treatment options for hair loss in individuals with androgenic alopecia. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, a systematic review of the National Library of Medicine was performed. Overall, 141 unique studies met our inclusion criteria. We demonstrate that many over the counter (e.g. topical minoxidil, supplements, low-level light treatment), prescription (e.g. oral minoxidil, finasteride, dutasteride), and procedural (e.g. platelet-rich plasma, fractionated lasers, hair transplantation) treatments successfully promote hair growth, highlighting the superiority of a multifaceted and individualized approach to management.

DNA Microarray and Bioinformatic Analysis Reveals the Potential of Whale Oil in Enhancing Hair Growth in a C57BL/6 Mice Dorsal Skin Model.

Much research has been conducted to determine how hair regeneration is regulated, as this could provide therapeutic, cosmetic, and even psychological interventions for hair loss. The current study focused on the hair growth effect and effective utilization of fatty oil obtained from Bryde's whales through a high-throughput DNA microarray approach in conjunction with immunohistochemical observations. The research also examined the mechanisms and factors involved in hair growth. In an experiment using female C57BL/6J mice, the vehicle control group (VC: propylene glycol: ethanol: water), the positive control group (MXD: 3% minoxidil), and the experimental group (WO: 20% whale oil) were topically applied to the dorsal skin of the mouse. The results showed that 3% MXD and 20% WO were more effective than VC in promoting hair growth, especially 20% WO. Furthermore, in hematoxylin and eosin-stained dorsal skin tissue, an increase in the number of hair follicles and subcutaneous tissue thickness was observed with 20% WO. Whole-genome transcriptome analysis also confirmed increases for 20% WO in filaggrin (Flg), a gene related to skin barrier function; fibroblast growth factor 21 (Fgf21), which is involved in hair follicle development; and cysteine-rich secretory protein 1 (Crisp1), a candidate gene for alopecia areata. Furthermore, the results of KEGG pathway analysis indicated that 20% WO may have lower stress and inflammatory responses than 3% MXD. Therefore, WO is expected to be a safe hair growth agent.

Can Plant Extracts Help Prevent Hair Loss or Promote Hair Growth? A Review Comparing Their Therapeutic Efficacies, Phytochemical Components, and Modulatory Targets

This narrative review aims to examine the therapeutic potential and mechanism of action of plant extracts in preventing and treating alopecia (baldness). We searched and selected research papers on plant extracts related to hair loss, hair growth, or hair regrowth, and comprehensively compared the therapeutic efficacies, phytochemical components, and modulatory targets of plant extracts. These studies showed that various plant extracts increased the survival and proliferation of dermal papilla cells in vitro, enhanced cell proliferation and hair growth in hair follicles ex vivo, and promoted hair growth or regrowth in animal models in vivo. The hair growth-promoting efficacy of several plant extracts was verified in clinical trials. Some phenolic compounds, terpenes and terpenoids, sulfur-containing compounds, and fatty acids were identified as active compounds contained in plant extracts. The pharmacological effects of plant extracts and their active compounds were associated with the promotion of cell survival, cell proliferation, or cell cycle progression, and the upregulation of several growth factors, such as IGF-1, VEGF, HGF, and KGF (FGF-7), leading to the induction and extension of the anagen phase in the hair cycle. Those effects were also associated with the alleviation of oxidative stress, inflammatory response, cellular senescence, or apoptosis, and the downregulation of male hormones and their receptors, preventing the entry into the telogen phase in the hair cycle. Several active plant extracts and phytochemicals stimulated the signaling pathways mediated by protein kinase B (PKB, also called AKT), extracellular signal-regulated kinases (ERK), Wingless and Int-1 (WNT), or sonic hedgehog (SHH), while suppressing other cell signaling pathways mediated by transforming growth factor (TGF)-β or bone morphogenetic protein (BMP). Thus, well-selected plant extracts and their active compounds can have beneficial effects on hair health. It is proposed that the discovery of phytochemicals targeting the aforementioned cellular events and cell signaling pathways will facilitate the development of new targeted therapies for alopecia.

Biotransformation of Cacumen platycladi Extract by Lactiplantibacillus plantarum CCFM1348 Promotes Hair Growth in Mice.

Cacumen platycladi (CP) is a frequently used traditional Chinese medicine to treat hair loss. In this study, CP fermented by Lactiplantibacillus plantarum CCFM1348 increased the proliferation of human dermal papilla cells. In an in vivo assay, compared to nonfermented CP, postbiotics (fermented CP) and synbiotics (live bacteria with nonfermented CP) promoted hair growth in mice. The Wnt/β-catenin signaling pathway plays crucial roles in the development of hair follicles, including growth cycle restart and maintenance. Both postbiotics and synbiotics upregulated β-catenin, a major factor of the Wnt/β-catenin signaling pathway. Postbiotics and synbiotics also increased the vascular endothelial growth factor expression and decreased the BAX/Bcl2 ratio in the dorsal skin of mice. These results suggest that fermented CP by L. plantarum CCFM1348 may promote hair growth through regulating the Wnt/β-catenin signaling pathway, promoting the expression of growth factors and reducing apoptosis.

Development and characterization of poly(lactic-co-glycolic acid) (PLGA) nanoparticles with finasteride and in vivo evaluation of their efficacy in hair growth

Introduction: Alopecia is a condition that affects the hair follicle. Currently, a wide variety of treatments are available, including topical, oral and injectable formulations. Oral therapies are the most adhered to; however, they generally present more adverse effects. As a well-established oral drug therapy, finasteride is presented, which inhibits the enzyme 5-α-reductase, and blocks the conversion of testosterone into dihydrotestosterone. This drug is capable of promoting hair growth, however can lead to adverse effects. Therefore, in this study, poly(lactic-co-glycolic acid) nanoparticles with finasteride were developed, aiming to improve the efficiency of this drug and reduce its systemic side effects. Methodology: Nanoparticles without the drug and with the drug at 10, 20 and 30mg were developed. The system was characterized by Dynamic Light Scattering, Zeta Potential, Differential Scanning Calorimetry and Fourier Transform Infrared Spectroscopy. Results and Conclusion: The drug-free nanoparticles had a reaction yield of 91.8%, nanoparticles with 10mg of finasteride showed a yield of 82.6%, with 20mg a yield of 92.9%, and with 30mg a yield of 89.3%. The average diameter ranged from 162.2nm for drug-free nanoparticles, 176.1nm for nanoparticles with 10mg of finasteride, 179.6nm for nanoparticles with 20mg, and 187.7nm for nanoparticles with 30mg. Nanoparticles with 10mg of finasteride showed an encapsulation efficiency of 48.2%, nanoparticles with 20mg an efficiency of 90.7%, and nanoparticles with 30mg an efficiency of 83.2%. The development of nanoparticles and the encapsulation of finasteride were successful. Next, an in vivo study will be conducted to evaluate its efficacy in promoting hair growth orally.

Malus pumila Mill. cv Annurca apple extract might be therapeutically useful against oxidative stress and patterned hair loss.

Patterned hair loss (PHL) or androgenetic alopecia is a condition affecting about 50% of people worldwide. Several pharmacological medications have been developed over the years, but few studies have investigated their effectiveness. Therefore, new, safer and more effective strategies are required. Recent investigations showed that Annurca apple extract application could induce keratin production and promote hair growth thanks to the high amount of procyanidin B2 contained in. Hence, this study aimed to investigate the role of an Annurca apple extract in preventing PHL by testing it on human follicle dermal papilla cells (HFDPCs) for the first time. Treatment of HFDPCs with Annurca apple extract counteracted intracellular reactive oxygen species accumulation by increasing the activity of antioxidant enzymes such as superoxide dismutase 2 and catalase. Furthermore, treatment with Annurca apple extract increased β-catenin and fibroblast growth factor 2, which are involved in hair growth stimulation. These data suggest that Annurca apple extract may be a potential therapeutically useful nutraceutical product for preventing or treating hair loss by reducing oxidative stress and inducing the expression of hair growth-related factors.

Promotion of hair growth by a conditioned medium from human umbilical cord mesenchymal stem cells cultivated in a 3D scaffold of gelatin sponge

BackgroundThis study aims to investigate the effects of a conditioned medium (CM) from human umbilical cord mesenchymal stem cells (HuMSCs) cultivated in gelatin sponge (GS-HuMSCs-CM) on hair growth in a mouse model.MethodsCM was collected from the HuMSCs cultivated in a monolayer or in a gelatin sponge. Vascular endothelial growth factor (VEGF), insulin-like growth factor-1 (IGF-1), keratinocyte growth factor (KGF), and hepatocyte growth factor (HGF) levels in CMs were measured by enzyme-linked immunosorbent assays (ELISAs). A hair loss model by a C57 BL/6J mouse was prepared. The effects of GS-HuMSCs-CM and HuMSCs on hair regrowth in mice were investigated by intradermal injection in the depilated back skin with normal saline (NS) as the control. The time for hair regrowth and full covering in depilated areas was observed, and the hair growth was evaluated histologically and by grossly measuring hair length and diameter.ResultsCompared with monolayer cultured cells, the three-dimensional (3D) culture of HuMSCs in gelatin sponge drastically increased VEGF, IGF-1, KGF, and HGF production. GS-HuMSCs-CM and HuMSCs injection both promoted hair regeneration in mice, while GS-HuMSCs-CM presented more enhanced effects in hair length, hair diameter, and growth rate. GS-HuMSCs-CM significantly promoted angiogenesis in injected skin areas, which might also contribute to faster hair regrowth.ConclusionGS-HuMSCs-CM exerted significant effects on inducing hair growth and promoted skin angiogenesis in C57BL/6J mice.

Microneedle assisted delivery of epidermal and dermal stem cells to promote hair growth

Microneedle assisted delivery of epidermal and dermal stem cells to promote hair growth