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Confused about Vitamin C
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saz07
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Mon Apr 21, 2008 12:47 pm      Reply with quote
I have been reading so many messages on the forum about Vitamin C products, the different types of vitamin C, oxidization, most stabilised forms etc. And it just got me confused as i am torn between which product to buy and which one will be the most effective?. Am i the only one?

So i thought i would do some research myself.

I have found this particularly useful link so i thought i would share it with others. This information has certainly helped me in deciding what Vit C products to buy.

Hope others find it useful aswell. Would appreciate any other useful information, love researching about skin care products

http://www.smartskincare.com/treatments/topical/anhydrous_vitc_combo.html

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Septembergirl
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Mon Apr 21, 2008 1:25 pm      Reply with quote
SAZ07 - interesting link. Thank you.

From the article it seems like SkinMedica can be a good choice, as it contains l-ascorbic acid and cones, which form a protective layer (if I didn't miss the point).

Have you got any suggestions on other brands that fulfils some of the claims in the article? Thank you. Smile

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Alley
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Mon Apr 21, 2008 1:34 pm      Reply with quote
Septembergirl wrote:
SAZ07 - interesting link. Thank you.

From the article it seems like SkinMedica can be a good choice, as it contains l-ascorbic acid and cones, which form a protective layer (if I didn't miss the point).

Have you got any suggestions on other brands that fulfils some of the claims in the article? Thank you. Smile


Septembergirl I just starting using the skinmedica line and the vit C has a really unusual texture, almost weighless when you put it on. I used it for about a week and broke out something aweful - huge under surface turmour like zits. I stopped using it for a week and then tried again - again huge zits, I look like I am growing horns from above my eyebrows Embarassed
I loved the texture and maybe this is all coincidence, if these ever go away I might try it again

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Septembergirl
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Mon Apr 21, 2008 1:53 pm      Reply with quote
[quote="Alley"]
Septembergirl wrote:


Septembergirl I just starting using the skinmedica line and the vit C has a really unusual texture, almost weighless when you put it on. I used it for about a week and broke out something aweful - huge under surface turmour like zits. I stopped using it for a week and then tried again - again huge zits, I look like I am growing horns from above my eyebrows Embarassed
I loved the texture and maybe this is all coincidence, if these ever go away I might try it again


Alley, I feel sorry for you! Crying or Very sad

You have apparently reacted to one of the ingredients in the serum. I hope you will be able to figure out which one in order to avoid these kinds of reactions in the future.

I have been using a sample of SkinMedica C complex without problems.

Hope your face recovers soon. Smile

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Alley
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Mon Apr 21, 2008 2:08 pm      Reply with quote
Thanks I hope it gets better too.

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saz07
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Tue Apr 22, 2008 1:15 am      Reply with quote
Has anyone tried Benev 20% Vit c gel? This also contains silicones and a stabilized form of Vit C?

What is the texture like of the Skin Medica version and will it be suitable for oily skin?

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saz07
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Tue Apr 22, 2008 2:51 am      Reply with quote
I have just found this thread on Skin Medica vit c

:: Review :: SkinMedica Vitamin C

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Septembergirl
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Tue Apr 22, 2008 4:08 am      Reply with quote
SkinMedica vit C complex is a white creamy gel.

Benev contains the oil soluble form of l-ascorbic acid. I haven't found many reviews on Benev C products and would also like to know if anyone has tried it.

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saz07
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Wed May 14, 2008 10:42 am      Reply with quote
I have been using the 20% strength now for about 2 weeks, ive found it was not at all drying like some other vit C products ive tried.

It sunk into the skin quickly and does not leave my skin oily (have oily/combination skin).

I thought this product might cause me to break out (due to being oil soluble)but fortunately i havnt so far.

My complexion does appear brighter then before and it has calmed some of the redness i had, but i guess it is too early to see a big difference.
I have noticed the fine lines i had around mouth area are begining to diminish, i dont have any other lines on my face.

This product has suprised me because a little goes a very long way and the silicone softens my skin and my makeup glides an oeasily and looks flawless.

I will post another review in another 4 weeks or so.

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Septembergirl
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Wed May 14, 2008 11:58 am      Reply with quote
Thanks for the report.

What's the consistency like? Is it like a white gel texture? I would like to know if you get blackheads after some more weeks of use. To me, that's the main problem with the water-soluble form of l-ascorbic acid.

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senesce
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Wed May 14, 2008 12:32 pm      Reply with quote
Most of the Vit C product in a jar is unstable. Therefore, a number of houses did it in a two phases form (liquid phase + a solid phase[vit c powder]).
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Wed May 14, 2008 1:36 pm      Reply with quote
I've been reading a little about oil soluble vitamin C. (The vitamin C in most vitamin C serums is the water soluble kind) An example of oil soluble vitamin C is ascorbyl palmitate. An example of water soluble vitamin C is ascorbic acid.

Oil soluble vitamin C is supposed to (based on my research) to be more effective and less irritating than water soluble vitamin C. Something to look into...
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Wed May 14, 2008 1:47 pm      Reply with quote
Here's a relevant abstract from PubMed.

http://www.ncbi.nlm.nih.gov/pubmed/11427357?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DiscoveryPanel.Pubmed_Discovery_RA&linkpos=2&log$=relatedarticles&dbfrom=pubmed

Basically it's saying that sodium ascorbyl phosphate is more stable than ascorbyl palmitate. So, sodium ascorbyl phosphate is what you want!

Here's another one, but it's too long to summarize, even the title is long:

Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and Sodium Ascorbyl Phosphate as used in cosmetics.

http://www.ncbi.nlm.nih.gov/pubmed/16154915?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DiscoveryPanel.Pubmed_Discovery_RA&linkpos=5&log$=relatedarticles&dbfrom=pubmed
Nimue
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Wed May 14, 2008 1:53 pm      Reply with quote
Oh! This is a great one!

http://www.ncbi.nlm.nih.gov/pubmed/12837482?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DiscoveryPanel.Pubmed_Discovery_RA&linkpos=2&log$=relatedarticles&dbfrom=pubmed

This study actually tested the effectiveness of ascorbyl phosphate on protecting the skin against free radicals. It does work! Also, the more the better. Smile Also, it was more effective with more oil in the delivery method (which makes perfect sense, since it's oil soluble)

I'm really happy to hear this, since there's a lot of ascorbyl palmitate in the 100% pure products.
Nimue
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Wed May 14, 2008 2:01 pm      Reply with quote
Finally! I finally stumbled on what I was looking for all along!

http://www.ncbi.nlm.nih.gov/pubmed/9172105?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DiscoveryPanel.Pubmed_Discovery_RA&linkpos=3&log$=relatedarticles&dbfrom=pubmed

The stability of ascorbic acid, ascorbyl palmitate and magnesium ascorbyl phosphate were tested. Ascorbic acid was found to be least stable, by far.
januarui
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Wed May 14, 2008 5:06 pm      Reply with quote
Good news. In my opinion, the ampoule/capsule packaged vitamin C should be the best, no matter what form it is...

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Nimue
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Wed May 14, 2008 9:17 pm      Reply with quote
januarui wrote:
Good news. In my opinion, the ampoule/capsule packaged vitamin C should be the best, no matter what form it is...


I can't argue with that. That's gauranteed freshness right there. Unfortunately, these products tend to be on the expensive side.
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Wed May 14, 2008 9:33 pm      Reply with quote
Nimue wrote:
januarui wrote:
Good news. In my opinion, the ampoule/capsule packaged vitamin C should be the best, no matter what form it is...


I can't argue with that. That's gauranteed freshness right there. Unfortunately, these products tend to be on the expensive side.


I think Elezebeth Arden's visible whitening pure intensive capsules are OK,
you can find it here for $59.

http://www.amazon.com/Elizabeth-Arden-Whitening-Intensive-Capsules/dp/B000LQJF9K/ref=sr_1_4?ie=UTF8&s=hpc&qid=1210825815&sr=1-4

However, I can't find this product at elizabeth arden's official website, instead I found a product called Ceramide Gold Ultra Restorative Capsules, I don't know whether they changed its name or not. ANyway, this nes stuff is $68.00, still much cheaper than cellex-C or skinceuticles.

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Thu May 15, 2008 11:19 am      Reply with quote
Septembergirl wrote:
Thanks for the report.

What's the consistency like? Is it like a white gel texture? I would like to know if you get blackheads after some more weeks of use. To me, that's the main problem with the water-soluble form of l-ascorbic acid.


Septembergirl

It a clear liquid form. The best product it resembles in texture is Cellex C B5 (HA serum) but a little thinner, its clear like B5 but absorbs much quicker than B5.

Will keep you updated if i get any blackheads.

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Tue May 20, 2008 10:11 pm      Reply with quote
Hey thanks for the info, I didn't know skin medica is so good, I will check out the websites to see if I can use them to replace skinceuticals
saz07
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Thu May 29, 2008 11:37 am      Reply with quote
Thank You all for the informative links and information.

Its been interesting to read about the different types of vit C and their effectiveness.

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