Cosmetics Formulation Development


สอบถามการผสม Vitamin C (L-ascorbic acid) (Ultra-Fine)

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Ask about the blend of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby pasinnm » Mon Jul 15, 2019 1:33 pm

Mix inquiry Vitamin C (L-ascorbic acid) (Ultra-Fine) is to mix and use Please give advice. Want to mix at a simple step, water formula offline formula Vitamin C (L-ascorbic acid) (Ultra- Fine) 15% Water 83% Mild Preserved 1% Xanthan Gum 1%
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby staff » Wed Jul 17, 2019 5:59 pm

Hello, the formula can be mixed. But it may not last very long. Recommend when mixing is done to keep in the refrigerator and do not expose to light.
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby pasinnm » Thu Jul 18, 2019 5:23 pm

Thank you, keep it in the refrigerator. And how long will the serum last? 3 months or 6 months, and if you want to add 2 more extracts, which one do you recommend? Ask for a water recipe.
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby llerickll » Thu Jul 18, 2019 8:15 pm

L-ascorbic acid is an inexpensive substance. give good results But the point is that it is very easily deteriorated. So how difficult is the formula to do? L-ascorbic acid decays the slowest. From the above formula, in simple words, there is L-ascorbic acid is mixed with water (the rest is a preservative with สารก่อเจล ) should be used up in 3-7 days because it will deteriorate quickly.
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby staff » Sun Jul 21, 2019 2:17 pm

Hello, the team recommends members. Try a mix similar to the ordinary Vitamin C 8% + Alpha Arbutin 2% is fine Vitamin C (L-ascorbic acid) (Ultra-Fine) 8% Alpha Arbutin 2% 1,3- Propanediol the rest to complete 100% may need to use a little heat to warm to help melt together easier. formula like this Will last longer Vitamin C (L-ascorbic acid) (Ultra-Fine) dissolved In water a lot because of stability problems as Mr. llerickll suggested.
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby llerickll » Sun Jul 21, 2019 5:33 pm

[quote="staff"] Vitamin C (L-ascorbic acid) (Ultra-Fine) 8% Alpha Arbutin 2% 1,3- Propanediol complete the rest. 100%
Please ask the staff for a bit L-Ascorbic acid in this Glycol base because there is no water in the formula at all. must use สารกันเสีย (eg Mild Preserve Eco etc.) Am I right?
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby staff » Mon Jul 22, 2019 10:29 pm

Hello, that's right.
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby austiname789 » Sun Aug 18, 2019 4:54 pm

[quote="staff"]Hello! The learning team recommends members. Try a mix similar to the ordinary Vitamin C 8% + Alpha Arbutin 2% ok Vitamin C (L-ascorbic acid) (Ultra-Fine) 8% Alpha Arbutin 2% 1,3- Propanediol , the rest to complete 100%, may need to use a little heat to warm to help melt together easier. formula like this Will last longer Vitamin C (L-ascorbic acid) (Ultra-Fine) dissolved In a lot of water because of stability problems, as suggested by Mr. llerickll
from the formula can add Dimethicone 1Secs to reduce the thickness. Or maybe gooey from 1,3- Propanediol when applied to the skin or not? How much is the gooey %? Or if not, should I use any one to replace it for light and comfortable skin when applying?
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby llerickll » Mon Aug 19, 2019 1:44 pm

[quote="austiname789"]From the formula can add Dimethicone 1Secs to reduce the thickness. Or maybe gooey from 1,3- Propanediol when applied to the skin or not? How much is the gooey %? Or if not, should I use any one to replace it for lightness and comfort when applying?
If you want to use Silicone, it's better to change the formula to this formula topic9038.html Silicone Gel 60% Isododecane 20%-25% L-ascorbic acid Ultra-Fine 15-20% This formula does not use water, L-ascorbic acid insoluble in silicone, just suspended in Silicone Gel
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Re: Ask about the combination of Vitamin C (L-ascorbic acid) (Ultra-Fine)

Postby llerickll » Mon Aug 19, 2019 1:49 pm

[quote="staff"]Hello! The learning team recommends members. Try a mix similar to the ordinary Vitamin C 8% + Alpha Arbutin 2% ok Vitamin C (L-ascorbic acid) (Ultra-Fine) 8% Alpha Arbutin 2% 1,3- Propanediol , the rest to complete 100% may need to use a little heat to warm to help melt together easier. formula like this Will last longer Vitamin C (L-ascorbic acid) (Ultra-Fine) dissolves In water a lot because of stability problems as suggested by Mr. llerickll
Staff, I have tried following. L-ascorbic acid insoluble in Propanediol at all, warm at 40c, then people are already (no blender, warm + people can stay for 30 minutes) finally settled down and slept at the bottom of the container, but not serious. I used it myself anyway. When using it, shake the bottle first. And then suck it with a dropper. I really want to invade the lab The Ordinary and see how they can dissolve it completely. No suspension or precipitate at all.
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