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Methyl Paraben migration to oil phase of emulsion
Methyl Paraben solubility in water is 0.25%. my questiona are
1. Does it migrate to oil phase of an emulsion if we use more than 0.25% methylparaben or in any amount it is possible to migrate to oil phase?
2. If we dissolve methyl Paraben in phenoxyethanol, then disolve that to water phase, does it prevent the migration of methyl Paraben to oil phase of emulsion?
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2 Replies
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hi
you will always have some Migration with this kind of conservator. it is not important due to the fact that the emulsions oil and water phase are always in the balance of the materials it is normal and nothing to worry about.
0.25 % Methylparabaen is the maximum Solubility in the water phase but you normally use 0.2-0.1% in the Product in combination with 0.1-0.05% Propylparaben.
The two Phases of the Emulsion will be in contact and therefore The paraben will be present in the oil as well as in the Water phase “used MEthylparaben in the water phase will be compensated from the oil phase until it is in balance.
It is beneficial to solve it in the water phase due to the higher concentration at the beginning at the water phase all bacterial will be eliminated.
hope that helps
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Gordof said:hi
you will always have some Migration with this kind of conservator. it is not important due to the fact that the emulsions oil and water phase are always in the balance of the materials it is normal and nothing to worry about.
0.25 % Methylparabaen is the maximum Solubility in the water phase but you normally use 0.2-0.1% in the Product in combination with 0.1-0.05% Propylparaben.
The two Phases of the Emulsion will be in contact and therefore The paraben will be present in the oil as well as in the Water phase “used MEthylparaben in the water phase will be compensated from the oil phase until it is in balance.
It is beneficial to solve it in the water phase due to the higher concentration at the beginning at the water phase all bacterial will be eliminated.
hope that helps
Thanks
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