Chemical Services第 89 / 100 题
Hair porosity refers to the hair's ability to:
a.Stretch and return
b.Resist heat
c.Absorb moisture or chemicals
d.Hold a static charge
解析
Porosity is how readily the hair absorbs liquids, which depends on the condition of the cuticle. Highly porous hair takes up chemicals and color quickly, affecting timing and results.
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