This study found that the PQ-70 shampoo formulation demonstrated the highest Hair Humidity Resistance Factor, indicating superior anti-frizz performance compared to other tested shampoos.
1 citations
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January 1997 in “Skin Pharmacology and Physiology”
In this study, researchers found a significant decrease in the modulus of elasticity of hair shafts in premature neonates compared to full-term ones, potentially due to differences in disulphide bonds or microfibril arrangement.
January 2010 in “DR-NTU (Nanyang Technological University)”
This study found that exposure to chlorine significantly reduced tensile properties in human hair compared to normal, while dyeing only affected some properties but not all.
This study found that anti-keratin antibody from immunized cow milk increases the resistance of damaged hair to stretching and inhibits fracture from excessive brushing.