Crystal modifications of transmission dyes

A method for protecting human skin from browning and skin aging comprising

• applying to said skin an aqueous disperson comprising
• (a) a micronized sparingly soluble organic benzophenone derivative of formula (1),
• which is in the form of crystal modification (C),
• wherein the crystal modification (C) is characterized by a peak in the X-ray diffraction pattern obtained by X-ray diffraction on a powdered sample at room temperature under CU-K-rays [λ(CuKα)=1.5425Å] represented by the following spacings beween lattice planes:
• d [Å]
• Intensity
• 8.63
• medium
• 7.81
• Weak
• 7.32
• medium
• 7.06
• Strong
• 6.88
• Weak
• 6.64
• medium
• 6.27
• medium
• 6.09
• medium
• 5.98
• Weak
• 5.56
• Weak
• 5.38
• Weak
• 4.89
• weak
• 4.67
• strong
• 4.54
• medium
• 4.37
• strong
• 4.33
• strong
• 4.17
• strong
• 4.11
• medium
• 4.04
• medium
• 3.92
• medium
• 3.70
• medium
• 3.52
• weak
• 3.31
• medium
• 3.26
• medium
• 3.14
• weak
• 3.01
• weak
• 2.87
• weak
• 2.70
• weak
• 2.64
• weak
• 2.51
• weak
• 2.34
• weak
• and
• (b) a dispersing agent selected from anionic, non-ionic and amphoteric surfactants.