March 2007 in “The FASEB Journal” Henna mixed with PPD can cause skin reactions, scarring, and a specific type of baldness, and needs more research to understand these effects.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Onion juice is most effective for hair regrowth, while garlic, ginger, and clove help with scalp health.
287 citations
,
January 2013 in “Journal of Ginseng Research” The ginseng market has potential for growth and needs new products and better marketing.
162 citations
,
August 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The new "differential stripping" method effectively measures how much substance gets into hair follicles.
150 citations
,
February 2013 in “Surgical Infections” Silver can help prevent and treat infections but its effectiveness varies and should be weighed against costs and side effects.
128 citations
,
September 2003 in “Journal of Ethnopharmacology” Hibiscus rosa-sinensis leaf extract helps hair grow longer and faster.
126 citations
,
January 1987 in “Journal of The American Academy of Dermatology” The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.
95 citations
,
April 2013 in “PLOS ONE” Ginseng is possibly safe but its effectiveness is unclear due to poor quality studies and mixed results.
79 citations
,
October 2015 in “Journal of Dermatological Treatment” Platelet-rich plasma may have some benefits in dermatology, but there's not enough evidence to widely recommend its use.
70 citations
,
November 1984 in “Cell & tissue research/Cell and tissue research” Vitamin D3 affects cell differentiation in specific skin areas.
67 citations
,
May 2018 in “Journal of Ginseng Research” Red ginseng may improve immunity, fatigue, memory, blood circulation, and menopausal symptoms, and is generally safe to consume.
63 citations
,
December 1988 in “International Journal of Dermatology” Vitiligo causes white skin patches and is linked to autoimmune issues.
61 citations
,
May 2015 in “Planta” Certain fungi and bacteria help orchid seeds germinate and plants grow better.
51 citations
,
January 2001 in “Biological & Pharmaceutical Bulletin” The bark of Myrica rubra contains compounds that can block testosterone effects and might help prevent hair loss.
47 citations
,
March 2017 in “Materials Science and Engineering: C” Human amniotic membrane helps heal skin wounds faster and with less scarring.
47 citations
,
May 2012 in “Applied Water Science” Removing trace elements from drinking water is essential for human safety.
46 citations
,
August 2016 in “Journal of The American Academy of Dermatology” The study found that family history, personal history of adolescent acne, no pregnancies, hirsutism, office work, stress, and low intake of fruits/vegetables and fish are risk factors for adult female acne.
44 citations
,
April 2003 in “European journal of pharmaceutical sciences” Lipophilic dyes accumulate more in hair follicles when delivered with surfactant-propylene glycol solutions.
43 citations
,
October 2013 in “Journal of Investigative Dermatology” Organotypic culture systems can grow skin tissues that mimic real skin functions and are useful for skin disease and hair growth research, but they don't fully replicate skin complexity.
38 citations
,
September 2006 in “Journal of Dermatological Science” Ketoconazole lotion can improve hair regrowth for some people with androgenetic alopecia.
36 citations
,
February 2004 in “International Journal of Dermatology” Different sports can cause specific skin conditions that need proper diagnosis and treatment.
28 citations
,
March 1942 in “Journal of Endocrinology” Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
27 citations
,
August 2006 in “Laboratory Investigation” SCF and ET-1 together significantly increase skin pigmentation and melanin production.
25 citations
,
April 2008 in “Archives of Dermatological Research” Encapsulated human hair cells can substitute for natural hair cells to grow hair.
25 citations
,
December 1995 in “Neurology” The research found that chickenpox virus spreads in skin through blood then to skin cells, while shingles virus moves from nerves to hair follicle areas before infecting skin cells.
25 citations
,
October 1976 in “The BMJ” A woman showed neurological symptoms from psittacosis linked to bird exposure, improving after antibiotic treatment.
24 citations
,
August 2011 in “Experimental Dermatology” The flap assay grows the most natural hair but takes the longest, the chamber assay is hard work but gives dense, normal hair, and the patch assay is quick but creates poorly oriented hair with some issues.
23 citations
,
January 2012 in “International Food Research Journal” Tofacitinib effectively treated a woman's severe symptoms from a rare autoimmune condition.
22 citations
,
March 1987 in “Journal of The American Academy of Dermatology” Minoxidil prolongs cell life, slows aging, and may produce longer hairs.
20 citations
,
March 1985 in “Journal of The American Academy of Dermatology” Genetic factors alone might not cause pemphigus vulgaris; other factors like birth complications and puberty may trigger it.