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MSO Lipstick Pigment Dispersion Study – University of Toledo*

OBJECTIVE:
The objective of the project was to compare Meadowfoam Seed Oil as a pigment dispersant for lipsticks to common dispersants castor oil and octyldodecanol.

STUDY FINDINGS:

  • MSO had lowest contact angle of the three dispersing agents, thus better pigment surface wetting than castor oil and octyldodecanol
  • MSO lipsticks had the lowest friction (best glide) and very similar pay-off and rheological properties as the caster oil lipsticks implying enhanced product application experience.

SUMMARY :
The study concluded that “Meadowfoam Seed Oil’s performance was qualitatively and quantitatively similar to castor oil and octyldodecanol.”

*Paper published in IFSCC (Published July 9, 2021)

A. Lipsticks formulated in this study.
B. Lipstick applied to printer paper

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