Many kinds of scalp health problems seriously trouble people's daily life.At present,commercially available scalp care products often have specific drugs added to treat a single symptom and cannot comprehensively improve the various symptoms associated with scalp health problems.In addition,the scalp has a rich microbial population,and long-term use of scalp care products can cause microecological disorders on the scalp surface,leading to repeated disease episodes.In view of this,a formulation designed to reconstruct the scalp microecology was proposed.Plant antibacterial hair-nourishing liquids with various natural extracts as the main active compo-nents were prepared,and their hair care effects were investigated.The results showed that when the antibacterial component content was 2 mg/mL,the hair-nourishing liquids had a strong inhibitory effect on Malassezia furfur(inhibition rate of 94.6％),a relatively weak inhibitory effect on Cutibacterium acnes(inhibition rate of 83.1％),and a certain inhibitory effect on Staphylococcus epidermidis(inhibition rate of 82.7％),indicating that the pre-pared hair-nourishing liquids had the effect of regulating scalp microecology.After 7 weeks of using the hair-nour-ishing liquids,the dandruff removal rate of the subjects could reach 94.2％.After 1 month of using the hair-nour-ishing liquids,the symptoms of abnormal oil secretion were improved,the degree of scalp redness and swelling was reduced,the hair diameter was significantly increased,and the degree of hair loss was also reduced.
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