Shampoos & Conditioners

Efficacy of Shampoos and conditioners by:

 

  •  Combing and brushing force measurement
  • Volume and “body”
  • Bending rigidity of hair tresses (softness measurement)
  • Shear modulus of single hair (torsion pendulum)
  • Moisturization by sorption isotherms
  • Luster of hair assemblies, its interpretation and product effects
  • Penetration of surfactants, oils and polymers into hair

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