3 citations
,
January 2009 in “Sen'i Gakkaishi” Using both TGA and DTDG in hair straightening reduces hair damage compared to using TGA alone.
Hibiscus leaves and apple skin could be effective in hair tonics to prevent hair loss.
July 2012 in “Ubaya Repository (University of Surabaya)” The gel and tonic were not stable.
November 2022 in “International journal of trichology” Glyoxylic acid straighteners cause more protein loss but have similar hair strength effects as traditional alkaline straighteners.
June 2021 in “Journal of Pharmaceutical Care Anwar Medika” The hair tonic made from cayenne pepper leaf extract is physically stable and suitable for use.
Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.
18 citations
,
July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.
August 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Using natural polyphenol cross-linkers like tannic acid and green tea extract in perm treatments improves curling and protects hair.
January 2010 in “SÖFW-Journal” A natural moisturizer can make hair stronger.
3 citations
,
August 2008 in “PubMed” Repeated digital perming with sodium thioglycolate lotion significantly damages hair protein and structure.
Chemical treatments weaken hair's thermal stability and structure.
June 2023 in “CHEDS Journal of Chemistry Education and Science” Green spinach leaves can be an effective and liked hair tonic for hair loss.
4 citations
,
September 1944 in “The American Journal of the Medical Sciences” October 2014 in “University of the Arts London Research Online (University of the Arts London)” Protein-derived ingredients can help strengthen bleached hair.
October 2025 in “International Journal of Cosmetic Science” Conditioners improve hair manageability but don't repair damage.
September 2020 in “Pharmauho/Pharmauho : Jurnal Farmasi, Sains dan Kesehatan” The hair tonics with galangal and Aloe vera extracts were stable and met standards.
January 2024 in “Jurnal Ilmiah Ibnu Sina (JIIS) Ilmu Farmasi dan Kesehatan” The F2 hair tonic with shallot extract is effective and stable for hair growth.
Different treatments change the strength and flexibility of human hair.
A hair tonic with 7.5% daun talok and 2% daun pare promotes hair growth as effectively as minoxidil.
Bleaching hair twice makes it very dry and weak.
1 citations
,
November 2021 in “Jurnal Farmasi Indonesia” Secang wood extract hair tonic promotes hair growth and meets quality standards.
April 2025 in “Jurnal Analis Farmasi” Ambon banana peel extract promotes hair growth.
4 citations
,
December 2024 in “International Journal of Molecular Sciences” Hom Thong banana peels can help reduce skin pigmentation by inhibiting melanin production.
13 citations
,
March 2020 in “Frontiers in cell and developmental biology” A substance called TCQA could potentially darken hair by activating certain genes and increasing melanin.
18 citations
,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
1 citations
,
January 2013 in “PubMed” Permanent wave treatment with thioglycolic acid changes hair structure by altering disulfide bonds.
30 citations
,
September 2018 in “International Journal of Cosmetic Science” Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.
7 citations
,
January 1995 Silicone pretreatment protects hair from damage and reduces color fading without interfering with bleaching or dyeing.
November 2023 in “Borneo Journal of Pharmacy” Sappan wood hair tonic helps protect and repair damaged hair.
17 citations
,
September 1953 in “Journal of Cell Science” INT effectively shows enzyme activity and protein groups in wool and hair follicles.