November 2023 in “Journal of the American Academy of Dermatology” This study explored spontaneous repigmentation after phenol-croton oil peels in skin of color, finding that temporary hypopigmentation resolved by day 21 in both a black-skin domestic pig model and human clinical observations, highlighting potential for these procedures despite past concerns about pigmentation issues.
45 citations
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March 2020 in “International Journal of Nanomedicine” This study found that nanoemulsion-based formulations, such as nanoemulgel and NFs, might serve as promising topical delivery systems for treating inflammatory diseases, potentially offering an alternative to traditional nonsteroidal anti-inflammatory drugs, which are associated with adverse effects.
50 citations
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July 1981 in “Archives of Dermatology” This study found that applying dinitrochlorobenzene (DNCB), a contact allergen, led to hair regrowth in patients with alopecia areata, while croton oil did not have the same effect.
8 citations
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January 2019 in “Journal of cosmetic dermatology” This study found that six sessions of a modified phenol peel effectively reduced hyperpigmentation in patients with Lichen Planus Pigmentosus, with 76% of treated individuals experiencing at least a 25% improvement, and no serious side effects reported.
December 2025 in “eTheses of Maulana Malik Ibrahim State Islamic University (Maulana Malik Ibrahim State Islamic University)” This study found that an optimal combination of ethnomedicinal extracts from East Nusa Tenggara, Indonesia, significantly increased hair length in mice, suggesting potential as a natural agent for hair growth through antioxidant mechanisms.
January 2015 in “Hair therapy & transplantation” This review discusses natural and botanical products examined for treating alopecia and reports no clinical results; the authors note growing research interest in these treatments.
This article describes the use of Croton tiglum seeds and Zingiber officianalis extract in treating alopecia areata with significant results, but does not report new clinical findings.
17 citations
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January 2016 in “Dermatology research and practice” In this study, topical Emu oil delayed burn wound healing but increased hair follicle activity and collagen synthesis in Balb/c mice.
February 2026 in “Cureus” This review highlights that castor oil has potential dermatological uses, including enhancing hair luster, reducing hyperpigmentation, and improving skin hydration and elasticity, although rare side effects like contact dermatitis occur, necessitating further research to confirm its effectiveness in these applications.
19 citations
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July 1993 in “Journal of Applied Toxicology” This study found that various petroleum distillates caused significant skin changes in mice, with severity varying based on the product and penetration pathway, potentially leading to skin tumors through non-genotoxic mechanisms in longer-term exposure.
This study suggests that 9-Octadecenoic acid (Z)-, 2,3-dihydroxypropyl ester from African Yam bean seeds may inhibit the human 5α-reductase II enzyme, potentially helping manage BPH, although further studies are needed.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” In this study, a herbal hair cream containing natural ingredients like Jamalgota and Amla was developed and evaluated, with Batch 3 showing promising results in texture, pH balance, spreadability, and stability, suggesting it may be a safe and effective option for managing alopecia.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” In this study, a herbal hair cream formulated with natural ingredients like Jamalgota and Neem oil was evaluated for managing alopecia; Batch 3 showed the best performance in texture, stability, and spreadability, with promising results as a safe alternative for promoting healthy hair growth.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This review highlights Croton tiglium's dual therapeutic and toxic properties, noting its potential for hair growth promotion through PKC-mediated pathways, while emphasizing the challenges posed by its toxicity for safe clinical use.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This review consolidates evidence on Croton tiglium's bioactive compounds and effects, discussing its potential uses in treatments like hair-growth formulations, yet emphasizes the significant safety challenges due to the plant's inherent toxicity.
9 citations
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January 1966 in “Economic botany” Plant-based ingredients in hair care are being replaced by synthetic alternatives.
17 citations
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September 2024 in “Cosmetics” This study assessed the antioxidant properties and contents of carotenoids and chlorophylls in 10 plant oils, finding fenugreek seed oil to be highest in carotenoids and pomegranate oil most active against free radicals, highlighting their potential as natural materials with antioxidant benefits.
15 citations
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October 2021 in “Frontiers in Pharmacology” This commentary discusses the potential of natural volatiles in medical aromatherapy, highlighting their ability to synergize with other drugs and modulate biological processes, but reports no new results.
This study found that a combination of photoprotector and nighttime formulations with essential oils improved skin barrier function and structural characteristics in young men's oily, acne-prone, and photoaged skin.
15 citations
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April 2022 in “Biointerface Research in Applied Chemistry” This review presents current evidence on medicinal plants and their phytoconstituents, such as phenolic compounds, used in acne treatment, highlighting their potential as alternatives to conventional therapies due to issues like antibiotic resistance and high cost.
April 2024 in “International Research Journal Of Modernization In Engineering Technology And Science” This study identified promising properties of a herbal shampoo formulation, suggesting its potential for human cosmetic use, but notes that further optimization is needed to fully explore its benefits.
7 citations
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January 2022 in “Anais Da Academia Brasileira De Ciencias” This study found that essential oils from Hedychium spicatum showed anti-inflammatory, antinociceptive, antipyretic, and antioxidant activities, with site-specific variations in their effectiveness.
January 2021 in “Lecture notes in mechanical engineering” This study found that hair exposed to extreme temperatures, acidic conditions, or excessive coconut oil showed damage, with pH 5 to 7 being optimal for maintaining hair health.
16 citations
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July 2020 in “Advances in Traditional Medicine” This study found that the combined ethanolic extract ethosome formulation of Phyllanthus niruri, Zingiber officianale, and Croton tiglium Linné showed better safety and less cytotoxicity for hair growth promotion compared to the petroleum ether formulations.
2 citations
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January 2023 in “Pharmaceuticals” This review discusses factors affecting hair health, types of alopecia, and the potential of phytochemicals in managing hair loss but reports no new clinical results; it highlights the need for further studies.
35 citations
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April 2024 in “Life” This literature review explored the potential therapeutic applications of bee venom, Ficus carica, and Geranium essential oil in treating skin conditions like vitiligo, melasma, and melanoma, concluding these natural products may offer anti-inflammatory, antibacterial, and antioxidant benefits for dermatological care, especially for diabetic patients.
7 citations
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March 2023 in “Antioxidants” This study confirmed the antioxidant role of rosemary, suggesting its potential use in treating inflammatory and infectious skin conditions, but emphasizes that more large-scale controlled trials are necessary to fully understand its clinical impact.
1 citations
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January 2017 in “Clinical Dermatology Review” This study surveyed hair care practices among men and women in India, finding that most wash their hair weekly and use shampoos, but highlight the need for education on proper cleansing methods.
July 2026 in “Hippocratic Journal of Unani Medicine” In this case study, a 34-year-old male with alopecia areata was treated successfully using Unani medicine, including cupping therapy, over three months, but the authors indicated the need for further research to confirm the safety and efficacy of these treatments.
19 citations
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March 2011 in “Cutaneous and Ocular Toxicology” Some chemicals absorbed through the skin can cause serious health problems.