One of the most recent publications in the journal of cosmetic dermatology (Feb 2022) has measured protein loss after oxidative hair damage in order to assess the effect of argan oil pre-treatment on human hair.
These group of researchers evaluated the preventive effect of argan oil pre-treatment on excised human hair after oxidative hair damage. Their unique study design makes it clear why this oil is becoming so heavily popular in the haircare industry.
In their study, hair tresses were evaluated in 3 groups:
Group 1: Hair tresses were damaged using oxidant agent
Group 2: Hair pre-treated with argan oil before undergoing the oxidative damage, oil was removed by physical cleaning before damaging by oxidant agent
Group 3: Hair pre-treated with argan oil before undergoing the oxidative damage, oil was removed with a washing procedure before damaging by oxidant agent
Qualitative studies of protein loss in hair samples were performed and study results revealed that the amount of protein loss with oil pre-treated groups (group 2 and 3) were reduced significantly.
Based on this study and similar evidence published in dermatology papers, it could be concluded that Argan oil pre-treatment is really effective in protecting hair against oxidative damage and therefore reduces protein loss of the hair keratin.
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https://pubmed.ncbi.nlm.nih.gov/35226791/
