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BIphasic products
Biphase products?
Biphase products are so confusing me, and I just wanna understand how does a one make a biphase product and not worry about 1. The stability possibly decreasing each time the oil and water phases interface for a short amount of time. 2. Or even worry about having some of the oil soluble perservatives interfere with the water soluble ingreidnets when mixed and vise versa.. ive noticed that brands add chelators, salts, solevants, and suspending/disbersing ingredients like hydrogenated Lecithin. Could this help with what my concerns are?
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5 Replies
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You add salt (NaCl) to the water phase to increase repulsion and if you worry about preservatives being distributed between two phases, add glycol.
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Thank u so much for answering!
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hello ! do you have a general formula for a leave on product as acting like biphase form? i want to make an leave on functional serum for face and i am searching a base structural p before starting.
thanx for ur help.
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You can have a water phase with 1-2% of salt, your water soluble actives, humectants and preservatives and your second phase with oils, antioxidants and oil soluble actives. That’s it. You can even have tri-phase product if you add some silicone. It is very simple and easy
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Biphasic - as in ribbons? Preservative migration is no more and prob much less a concern than with emulsion. But use preservatives with great water solubility.
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