April 2019 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” This study found that the acidic hair straightening formulation at pH 1.0 improved hair alignments and straightening effectiveness more than pH 2.0, but it weakened fiber strength and affected hair color and composition.
43 citations
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July 2016 in “European journal of pharmaceutical sciences” This study found that dexamethasone-loaded Eudragit® L 100 nanoparticles displayed controlled drug release depending on pH levels, with minimal toxicity to human fibroblasts.
1 citations
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October 2023 in “International Journal of Women s Health” In this study, scalp hydration and pH levels were not significantly different between hijab-wearing and non-hijab-wearing women, suggesting that hijab-wearing does not impair scalp health if there's no history of underlying scalp or skin disorders and the hijab is not worn damp.
This study found that the Arabidopsis cation chloride cotransporter CCC1 is critical for regulating pH in the trans-Golgi network/early endosome, impacting plant growth and stress response.
December 2023 in “International Journal of Newgen Research in Pharmacy & Healthcare” This study evaluated the physicochemical characteristics, safety, and efficacy of six herbal and six synthetic shampoos and found that all products performed well in various tests, with no skin irritancy observed, suggesting that both types can be considered safe for use.
37 citations
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October 2017 in “Saudi pharmaceutical journal” This study reports that six shampoo brands in Saudi Arabia generally comply with the national specifications, demonstrating good physicochemical properties such as foam stability and pH levels.
February 2020 in “Drug Analytical Research” This study found that magistral topical minoxidil solutions had differences in color, viscosity, and acidity compared to industrial formulations and issues with drug content and dosage indication, despite similar follicular penetration.
2 citations
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May 2023 in “Experimental dermatology” In this study, researchers used advanced four-dimensional optical imaging techniques to observe changes in skin afflicted with acne, finding increased epidermal thickness, keratinized hair follicles, inflammation, and aggregated blood flow, helping to distinguish between inflammation and reparative phases of acne progression.
October 2025 in “Current Pharmaceutical Research” This study evaluated a new herbal shampoo made from traditional plants and found it to have effective cleansing properties, moderate foam stability, and environmental safety, suggesting it as a favorable natural alternative to synthetic shampoos.
3 citations
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October 2018 in “International Journal of Green Pharmacy” This study suggested that an herbal shampoo containing Piper betle and Psidium guajava leaves extract may promote hair growth due to its antioxidant properties and showed stability for two months.
1 citations
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February 2022 in “Scholars international journal of traditional and complementary medicine” In this study, researchers formulated a hair gel using guar gum and jatamansi extract, evaluating its physical properties and noting that jatamansi may promote hair growth, with the gel meeting various parameters such as pH, viscosity, and spreadability.
September 2026 in “World Journal of Pharmacy and Pharmaceutical Sciences” This study reports the successful formulation of a stable herbal hair serum with Catharanthus roseus extract and other ingredients, noting it has a suitable pH, consistency, and stability, suggesting potential effectiveness as a natural alternative for hair care pending further clinical trials.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study evaluated a polyherbal hair serum containing neem, hibiscus, and curry leaves, reporting good stability, beneficial effects on hair texture, dandruff reduction, and potential hair growth stimulation, suggesting it as a safe alternative to synthetic hair care products.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study developed a polyherbal hair serum containing neem, hibiscus, and curry leaves extract, finding it to be stable, physicochemically suitable, and potentially effective in improving hair texture, reducing dandruff, and stimulating hair growth.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This research formulated and evaluated a multipurpose herbal liquid shampoo using plant-based extracts, which showed good cleansing action, medium foaming, and caused no skin irritation, suggesting it to be a safe alternative to synthetic shampoos.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study evaluated a multipurpose herbal liquid shampoo formulated with extracts like Horse Gram and Amla, reporting effective cleansing, no skin irritation, and a pH of 5, suitable for scalp and hair.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This review summarizes current research on natural hair dyes, reporting that plant-based formulations can safely provide viable colors on gray hair with minimal irritation compared to synthetic options but face challenges in color range and consistency.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study evaluated a polyherbal hair oil formulated with medicinal plants and base oils like coconut and almond, reporting it as safe and effective in promoting hair growth, improving scalp health, and offering an economical alternative to synthetic hair care products.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study reported that a newly formulated polyherbal hair oil, containing ingredients like amla and neem, may safely promote hair growth and overall scalp health as an alternative to synthetic products.
December 2025 in “PubMed” In this study, researchers found that a propylene glycol-free and alcohol-reduced topical foam containing minoxidil and finasteride remained chemically, physically, and microbially stable for 180 days when stored properly at room temperature in light-resistant containers.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This study reported that a herbal hair shampoo formulated with natural ingredients like Aloe vera, Hibiscus, and amla showed acceptable cleansing ability, adequate foaming, and scalp-compatible pH, suggesting that these natural ingredients can replace synthetic components in commercial hair care products.
November 2023 in “International journal of Ayurveda and pharma research” This study prepared and evaluated a polyherbal hair oil using plant-based ingredients, finding that it met standard parameters and effectively addressed hair problems such as growth and dandruff, with FDA approval for clinical use.
August 2023 in “International journal of basic and clinical pharmacology” This review article describes the ingredients and evaluation tests for formulating a hair serum aimed at improving hair growth and preventing hair loss, highlighting the roles of Citrus sinensis, Nigella sativa, flax seed, and coconut oil in addressing hair and scalp health.
July 2022 in “International Journal of Science and Research (IJSR)” This study describes the development of an herbal hair oil using thirteen ingredients to address various hair problems like baldness, dandruff, and hair damage, although the abstract does not report results or evaluate efficacy.
June 2022 in “International Journal for Research in Applied Science and Engineering Technology” The research developed a herbal shampoo using extracts from Piper Betel and Psidium Guajava leaves, which showed potential in promoting hair growth and managing hair diseases, while replacing synthetic ingredients with safe natural alternatives.
March 2022 in “INDIAN JOURNAL OF APPLIED RESEARCH” This study found that the formulated shampoo using alcoholic extracts of Hibiscus rosa-sinensis demonstrated antimicrobial and antifungal activity and met all standard evaluation criteria, offering a potentially safer alternative to synthetic shampoos without harmful preservatives like paraben.
January 2020 in “Journal of Pharmacognosy and Phytochemistry” This study observed that a polyherbal hair oil made from virgin coconut oil and extracts of nine different herbs demonstrated effectiveness in promoting hair growth with a cooling effect and no reported side effects, based on various evaluated properties.
June 2022 in “International Journal of Advanced Research in Science, Communication and Technology” This study aimed to develop a herbal hair serum to enhance hair growth and prevent hair loss, addressing common issues like extreme hair loss in younger populations caused by lifestyle factors such as stress and dietary habits.
37 citations
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January 2013 in “Postepy Dermatologii I Alergologii” This article discusses isotretinoin for severe acne vulgaris, noting its effectiveness but also highlighting significant side effects on skin, mucous membranes, and hair; it reports no new clinical results.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study developed a herbal shampoo powder using Ayurvedic herbs and evaluated its properties, finding it effectively cleanses and conditions hair while being free of synthetic additives, suggesting it as a sustainable alternative to conventional liquid shampoos.