Cosmetics Formulation Development


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Ask about serums that contain vitamin C to change color.

Postby naratree88 » Fri Oct 22, 2021 12:43 am

The serum contains Vitamin C ( Perfect-C ) 1.5% but the formula contains Disodium EDTA 0.05%, discoloration to dark yellow after 2-3 months. can fill ActiveProtec OX can I add it? How much will it help? Thank you.
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Re: Question about serum containing vitamin C to change color

Postby naratree88 » Fri Oct 22, 2021 1:10 am

Ask for more information as follows: 1. If using Protec OX 0.05% volume is better use ActiveProtec OX ? 2. The body Protec OX need to be melted in hot oil 70-80 degrees only. Or can it be dissolved in oil directly? 3. Protec OX Can it be dissolved in Glycol at room temperature?
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Re: Question about serum containing vitamin C to change color

Postby staff » Sat Oct 30, 2021 8:50 pm

Hello, recommend adding ActiveProtec OX 1% + ActiveProtec UV 1% together 2 will be able to help even more. performance will be better Disodium EDTA but I need to test how long it can prevent yellowing.
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