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Open research questions in Dermatologic Treatments and Research

132 gap statements mined from Dermatologic Treatments and Research papers in our 4.5M-paper local library, which holds 719 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • There is a need for safe and effective treatments for venous lakes. Conventional treatments can lead to postoperative complications. There is a lack of studies on the use of CO2 fractional laser therapy for venous lakes.

    Successful treatment of lower lip venous lake using CO2 fractional laser therapy · 2026 · DOI

  • The use of hydroquinone (2–4%) or other topical agents before resurfacing remains controversial: while some trials suggest modest reductions in PIH severity, others find no significant benefit over sunscreen alone.

    Facial laser complications (A Five Year Review) · 2026 · DOI

  • The need for further experiments in models that better recapitulate periocular skin complexity. The need for additional studies using hydration measurement methods using validated equipment and in vivo human models.

    PVA and HPMC E4M-based patches for periorbital hyperpigmentation containing açaí oil, barbatimão extract and hyaluronic acid: Preliminary evaluation of skin hydration · 2026 · DOI

  • Although there is limited literature directly addressing melasma development in previously burned skin, thermal injury is known to result in long-term alterations in melanocyte density, function, and dermal remodeling.

    Extra-facial Melasma Presenting With Isolated Forearm Involvement in a Male Patient · 2026 · DOI

  • This is a single case report with a short observation period. No statistical analysis was performed due to the small sample size. Longer-term evaluation is needed to establish the efficacy of the treatment.

    Autologous Fat Grafting for Mixed-Type Atrophic Acne Scars: A Case Report in Female · 2026 · DOI

  • There is a lack of evidence for the use of fat grafting in mixed-type atrophic acne scars. The current treatment options for atrophic acne scars are limited.

    Autologous Fat Grafting for Mixed-Type Atrophic Acne Scars: A Case Report in Female · 2026 · DOI

  • By minimising the thermal damage and ensuring better lesion clearance, this technique addresses the key limitations of conventional RF treatment, i.

    Refining Xanthelasma Palpebrum Treatment: A Scar Minimising Dual Technique Approach · 2026 · DOI

  • There is a need for a systematic review and meta-analysis of the efficacy and safety of combining rhEGF with fractional CO2 laser therapy. The current evidence on the combination therapy is limited and inconsistent.

    Efficacy and safety of recombinant human epidermal growth factor combined with fractional carbon dioxide laser for facial atrophic acne scars: a systematic review and meta-analysis of randomized trials · 2026 · DOI

  • Lack of multivariate control. Wide confidence interval (0.7-92.3) indicating substantial uncertainty in the estimate.

    Melasma and prolonged oral contraceptive use: a community-based retrospective cohort study · 2026 · DOI

  • The study faced challenges in terms of limited sample size and duration. The study also faced challenges in terms of variability in patient response to treatment.

    Efficacy of glycolic acid peels in combination with topical therapy in common facial melanosis in skin of color: A randomized clinico-dermoscopic study · 2026 · DOI

  • The study does not mention any specific limitations. However, it can be inferred that the study may have limitations due to its relatively small sample size and limited duration.

    Efficacy of glycolic acid peels in combination with topical therapy in common facial melanosis in skin of color: A randomized clinico-dermoscopic study · 2026 · DOI

  • The exact microbial profiles to offer optimal healing effects have not been well established and even the role of age, ethnicity, environment exposure and lifestyle need to be studied further. The qualitative and mixed-method evidence also showed that the results of healing are not just limited to the biological recovery.

    Harnessing Commensal Microflora: A New Paradigm for Minimising Scarring and Inflammation in Medical Aesthetic Procedures - A Systematic Review · 2026 · DOI

  • The study had a limited sample size of 84 patients. The study did not compare the results to a control group. The study did not investigate the long-term effects of the treatment.

    MULTIMODAL RECONSTRUCTIVE AND PLASTIC SURGERY METHODS FOR POST-BURN SCAR TREATMENT · 2026 · DOI

  • The current approaches to the correction of scar deformities have limitations. There is a need for more effective treatments for hypertrophic and keloid scars.

    MULTIMODAL RECONSTRUCTIVE AND PLASTIC SURGERY METHODS FOR POST-BURN SCAR TREATMENT · 2026 · DOI

  • Crucial to this remodeling phase is the balance between Matrix Metalloproteinases (MMPs) and their inhibitors; in pathological scarring, this balance is often lost, leading to an environment where tissue degradation is insufficient and collagen accumulation becomes uncontrollable.

    SCAR AND WOUND MANAGEMENT: FROM CONVENTIONAL THERAPIES TO ADIPOSE-DERIVED AND EXOSOME-BASED REGENERATIVE APPROACHES · 2026 · DOI

  • The lack of effective prevention and treatment methods for keloid. The limited understanding of the pathological mechanism of keloid formation. The need to investigate the biological mechanism of deposited collagen regulating the formation of fibroblast-mediated local immunosuppressive microenvironment.

    Collagen promotes PD-L1 overexpression in fibroblasts through binding to CD44 and activating YAP1 signaling during keloid formation · 2026 · DOI

  • The evidence base for IV micronutrient infusions in aesthetic and preventive medicine is limited and varies markedly by ingredient and indication. There is a need for further research to establish the safety and efficacy of IV micronutrient therapy.

    Intravenous Micronutrient Infusion Therapy in Aesthetic and Preventive Medicine: A Narrative Review · 2026 · DOI

  • The limited translational relevance of commonly used animal models is a significant limitation. Barriers to clinical and economic translation are also noted. Insufficient long-term safety evidence and stringent FDA approval processes limit the clinical application of nanoparticle-based drug delivery systems.

    A comprehensive review on scar formation and influencing factors: insights into mechanisms and therapeutic strategies · 2026 · DOI

  • The follow-up period was limited to 8 months. The study does not compare the results to other treatment methods.

    Successful treatment of lower lip venous lake using CO2 fractional laser therapy · 2026 · DOI

  • There are no specific treatment guidelines available for AKN. Most treatment options are unsatisfactory to patients.

    Follicular unit extraction as a treatment for acne keloidalis nuchae · 2026 · DOI

  • Directed-energy sources such as Q-switched Nd:YAG lasers are widely used in clinical, cosmetic, and military settings, yet no standardized animal model exists for cutaneous laser burn injury.

    Cutaneous Injuries From an Nd:YAG Laser Directed-Energy Source Utilizing a Murine Model · 2026 · DOI

  • The limited translational relevance of commonly used animal models. Barriers to clinical and economic translation.

    A comprehensive review on scar formation and influencing factors: insights into mechanisms and therapeutic strategies · 2026 · DOI

  • The study identifies a gap in understanding the optimal timing of CO fractional laser intervention for scar formation.

    Does Earlier Laser Intervention for Post-Surgery Scars Yield Superior Outcomes? · 2026 · DOI

  • The study had a limited sample size of 62 Chinese women - The study was a monocentric, open-label clinical study - The study only evaluated the anti-aging efficacy of a specific topical…

    Targeting the Dual Nature of Facial Aging: A Clinical and Instrumental Study of a Multi-Active Cream on Static and Dynamic Wrinkles · 2026 · DOI

  • Further studies could investigate the long-term effects of the cream - Studies could also explore the efficacy of the cream in different populations - Research could examine the effects of the cream on other signs of facial…

    Targeting the Dual Nature of Facial Aging: A Clinical and Instrumental Study of a Multi-Active Cream on Static and Dynamic Wrinkles · 2026 · DOI

Most-cited papers in Dermatologic Treatments and Research

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Open questions raised by papers listed on this page include: (1) There is a need for safe and effective treatments for venous lakes (“Successful treatment of lower lip venous lake using CO2 fractional laser therapy”, 2026); (2) The use of hydroquinone (2–4%) or other topical agents before resurfacing remains controversial: while some trials suggest modest reductions in PIH severity, others find no significant benefit over sunscreen alone (“Facial laser complications (A Five Year Review)”, 2026); (3) Although there is limited literature directly addressing melasma development in previously burned skin, thermal injury is known to result in long-term alterations in melanocyte density, function, and dermal remodeling (“Extra-facial Melasma Presenting With Isolated Forearm Involvement in a Male…”, 2026); (4) Longer-term evaluation is needed to establish the efficacy of the treatment (“Autologous Fat Grafting for Mixed-Type Atrophic Acne Scars: A Case Report in…”, 2026); (5) There is a need for a systematic review and meta-analysis of the efficacy and safety of combining rhEGF with fractional CO2 laser therapy (“Efficacy and safety of recombinant human epidermal growth factor combined with…”, 2026). 132 gap statements have been mined from Dermatologic Treatments and Research papers in our 4.5M-paper local library, which holds 719 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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