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This study found that adding certain conditioning agents, including jojoba oil and lauryl PEG/PPG‐18/18 methicone, to ammonium thioglycolate straightening emulsions protected Afro-ethnic hair from protein loss and improved resistance to breakage.

This article reviews the role of trichoscopy in diagnosing hair weathering conditions like trichorrhexis nodosa and trichoptilosis and suggests treatment by avoiding harmful chemical and physical factors, but it provides no new research findings.

This study from years of treating hair loss in Japan reported various treatment outcomes: some patients showed improvement with manual treatment alone, others with added finasteride, some did not respond to either, and some maintained benefits even after stopping finasteride.

This study concluded that shampoos sold in pharmacies generally contain fewer regulated allergens under EU law compared to those sold in mass-market stores or by mail order, and pharmacy-sold baby shampoos were allergen-free.

This article reviews the composition and functionality of shampoos, emphasizing the role of surfactants in cleaning and conditioning hair, and reports no new experimental results.