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Thu Feb 17, 2005 9:40 pm  |
Got this from a newsgroup:
| Quote: |
>It is our belief, based on personal experience, that ester c is not as
>effective as pure vitamin c.
>
>Ester c is produced by decomposing part of the vitamin c molecule by
>heating it. This saves the manufacturer money since they don't have to
>remove solvents at a low temperature.
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>We asked a large supplier what he thought about it and he not only agreed
>with us, but said that he thought that ester c was a hoax and a rip off.
>
>Anyone else have any comments or information to add?
That's pretty much my feeling as well. Incredible that somebody can
bottle oxidized vitamin C, call it something it isn't (no ester is
present) and sell the stuff at double the price. There's a sucker born
every minute.
Steve Harris, M.D. |
Is there some scientific study resulting to having better results with Ester-C over L-ascorbic acid? |
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Fri Feb 18, 2005 2:18 am |
Im not very happy about that  |
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Mabsy
Moderator
 
Joined: 17 Aug 2003
Posts: 9644
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Fri Feb 18, 2005 5:06 am |
I wonder if the supplier only supplies l-ascorbic based serums 
I've used the Jan Marini vitamin C serum before and this is an Ester-C based serum. I did feel it working (it tingled the first few days, though this is a couple of years ago and my skin wouldn't even notice it now I guess) and I did see results. Are the results better with Vivier (which is l-ascorbic)? Yes, for me they are. If you have super sensitive skin though then Ester-C serums seem like a good choice. It would also be good for people who know they will not use it up in a few months. Apparently the shelf life of an opened (but capped obviously) Ester-C serum is around 2 years versus the 2-3 months for an l-ascorbic serum. |
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Fri Feb 18, 2005 9:40 am |
| I don't think it's a hoax but not as effective as l-ascorbic acid. However, before they figured out how to stabilize L-aa by removing water from the solution, encapsulating in silicone, using glycol solutions, etc., C-ester was a way to have a C product that was stable. It is not as effective though so you have to put alot of it in the bottle. Thus these claims of 25% C-ester...and you know how we all think more is better. Well, it's not in this case. C-ester has to be converted to L-ascorbic acid by your body, just like MAP (another form of C)...in that conversion process, some effectiveness is lost. Now that l-aa is available in stable solutions, no reason to use C-esters anymore. except as he noted, cheaper for the manufacturer. |
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Fri Feb 18, 2005 9:58 am |
Wow!  Thanks for the info Professor Betterat40  |
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Fri Feb 18, 2005 11:47 am |
I  betterat40! Thanks for that info! |
_________________
V2J 6P7 |
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Fri Feb 18, 2005 2:24 pm |
| Betterat40, when you say that c-ester is not as effective as l-ascorbic acid, do you mean as a serum or are you also talking about the Vitamin C Ester that is in the Alphaderma? |
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Fri Feb 18, 2005 4:05 pm |
| I mean when you compare the two ingredients and assume they are both in stable solutions, the l-ascorbic acid will be more effective at the same concentration. L-ascorbic acid does not need to be "converted" by your skin so whatever percentage is in the formula is what your skin is getting....unlike C-Ester... |
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Mabsy
Moderator
Joined: 17 Aug 2003
Posts: 9644
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Fri Feb 18, 2005 5:03 pm |
| Rzecka - the bottom line is that if you want the most effective vitamin C serum and you don't have crazily sensitive skin then you should go for l-ascorbic to get the most benefit. Additionally, it should have a pH below 3.5 to be the most effectively absorbed. |
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Sat Feb 19, 2005 3:51 am |
Thanks you two, that makes sense to me now  |
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Fri Mar 04, 2005 5:03 pm |
| That's very interesting. Thanks for the info bettarat40. However, does that mean that L-ascorbic acid tablets are better than Ester-C caps if you want more vitamin C to be absorbed by your body? I read that Ester-C is more gentle in your digestive system (non-acidic) and therefore take it only if you have a sensitive stomach. Otherwise, you're better off taking L-ascorbic acid (cheaper). Is that correct? |
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Fri Mar 04, 2005 5:31 pm |
All I know about C is that since I started using it my skin color looks great (tended to look sallow). I try to look at results and not what I read. Vit. C serum will continue to be part of my routine.
Winnie |
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Fri Mar 04, 2005 5:34 pm |
Incidentally, I found this paper from the Linus Pauling Institute:
http://lpi.oregonstate.edu/infocenter/vitamins/vitaminC/vitCform.html
To summarize, Natural and synthetic L-ascorbic acid are chemically identical and there are no known differences in their biological activity. The effect of bioflavonoids on the bioavailability of ascorbic acid is inconclusive. They found no difference between Ester-C® and commercially available ascorbic acid tablets. The presence of ascorbyl palmitate in oral supplements contributes to the ascorbic acid content of the supplement and probably helps protect fat-soluble antioxidants in the supplement. Ascorbyl palmitate is frequently used in topical preparations because it is more stable than some aqueous (water-soluble) forms of vitamin C. Ascorbyl palmitate, also marketed as, "vitamin C ester," should not be confused with Ester-C®.
Well, in this case, if you are going to put vitamin C on your face, you should use "Vitamin C Ester" not "Ester-C". If you think Ester-C is already working for you, wouldn't Vitamin-C Ester be more effective then since it's more stable? |
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Sat Mar 05, 2005 10:41 am |
| oi vay. Can you recommend a specific brand (should I be in the product review forum??) that uses L-ascorbic acid that is effective? I think I am getting confused. |
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Sat Mar 05, 2005 11:00 am |
The Vit. C serums that get the best reviews that I know of on this forum are:
Vivier
Skinceuticals
both of the above can be purchased here at EDS.
Cellular Skin RX C+ Firming is also very popular. |
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Sat Mar 05, 2005 12:47 pm |
Thanks, Winnie!  |
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