SUNJIN NEWSLETTER
How to prevent balling up in your skin care formulations
By Jeong, Areum
Translated By Ko, Eunyoung
December 2022, NO.49
Hi, How are you?
Today we will introduce how to prevent balling up in your skin care formulations.
Balling up occurs when large sized particles, such as pigments and micro beads, and polymer thickeners are lumped together, just as a ball is wound around a net and continues to clump into a large size.
To observe the balling up, we made a simple lotion formulation with 0.2% carbomer and 15% different types of microbeads, respectively.
Balling up was observed within 45 seconds of applying a 7um-sized silica to the skin, and 30 seconds of a 13um-sized silica-containing formulation. However, formulations containing the smallest sizes of 2um silica(SUNSIL-20 and SUNSIL-OLEO20) had no balling up after 60 seconds.
A large microbead is like a basketball, so when it meets a thickner, it gets more clumpy, but a small microbead is like a tennis ball, so it is much less clumpy.
Therefore, we recommend SUNSIL-20 and SUNSIL-OLEO20, which are 2um sizes, to avoid balling up.
If you have any inquiries, please feel free to contact us.
Areum Jeong / Regional Sales Manager
E-mail : sales1@sunjinbs.com