W/O cream , loses viscosity
Hello everyone, I have a problem, about a formula
Basic formula is
Monomuls 90-O 2%
Lameform TGI 4%
Hydrogenated Microcrystallina cera 4%
Oil phase (including Paraffin oil, Isopropyl myristate & v.low percentage of jojoba oil & tocopheryl Acetate ) 14%
Aluminum stearate 0.25%
Water phase approx. 72% (including MgSO4..07%, Glycerin)
I have this formula in two versions, one, with parabens, and one, with phenoxyethanol & Decylene glycol mix. Both of them seem to lose viscosity (ie. from 100,000cp to 25000cps), which is a huge problem because the packaging material is a jar, of high diameter, and therefore, the bulk is pouring. I recently realized, that shear force, also affects the product. If the product is over-tested (meaning extra stirring, viscosity measurements) it loses viscosity. If after filling you just let it stand there, nothing happens. And last, but not least, the version with the phenoxyethanol & DG, when put in the oven at 50 degrees for 24 h, it regains viscosity and keeps it unless, stirred again… Please do advise..
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