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Thu Jul 12, 2007 5:16 am  |
Decided to do a little research about the benefit of using Vit C serums and found this abstract...thought it worth sharing:
[i]Effectiveness of antioxidants (vitamin C and E) with and without sunscreens as topical photoprotectants.
Darr D Dunston S Faust H Pinnell S. Acta Derm Venereol (1996 Jul) 76(4):264-8
Considerable interest has been recently generated concerning the use of natural compounds, anti-oxidants in particular, in photoprotection. Two of the best known anti-oxidants are vitamins C and E, both of which have been shown to be somewhat effective in different models of photodamage. Very little has been reported, however, on the effectiveness of a combination of the two (known to be biologically the more relevant situation); nor have there been detailed studies on the ability of these antioxidants to augment commercial sunscreen protection against UV damage. We report that (in swine skin) vitamin C is capable of additive protection against acute UVB damage (sunburn cell formation) when combined with a UVB sunscreen. A combination of both vitamins E and C provided very good protection from a UVB insult, the bulk of the protection attributable to vitamin E. However, vitamin C is significantly better than vitamin E at protecting against a UVA-mediated phototoxic insult in this animal model, while the combination is only slightly more effective than vitamin C alone. When vitamin C or a combination of vitamin C and E is formulated with a commercial UVA sunscreen (oxybenzone), an apparently greater than additive protection is noted against the phototoxic damage. These results confirm the utility of anti-oxidants as photoprotectants but suggest the importance of combining the compounds with known sunscreens to maximize photoprotection. [i][b] |
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Thu Jul 12, 2007 5:05 pm |
I am so glad that I started using C-serum this summer. Hopefully as the article said, I am getting maximum photoprotection from both the C-serum and sunscreen.
Thanks mountaingirl for sharing this article with us. |
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Thu Jul 12, 2007 7:58 pm |
just two question ,is C-serum use in AM or PM ?
Can we use 2 time a day ? |
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Thu Jul 12, 2007 8:11 pm |
From the summary here it is unclear to me whether the authors mean they combine the anti-oxidents into a sunscreen, or just layered them. Can anyone clarify this point for me?  |
_________________
Mid-20s Asian female (since I am not mature enough to be called a woman ). Skin is combination with tendency to dryness around the cheeks and prone to blemishes. Naturally coarse black hair  . Lastly but most importantly, you need something purchased in Australia I will be happy to CP  :. |
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Thu Jul 12, 2007 8:56 pm |
| lotus003 wrote: |
just two question ,is C-serum use in AM or PM ?
Can we use 2 time a day ? |
You only need to use once a day. Either AM or PM is fine, but I guess a lot of people prefer AM since it will give you more protection and fight free radicals from sun exposure during the day. |
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Thu Jul 12, 2007 8:59 pm |
[quote="cuppre"]From the summary here it is unclear to me whether the authors mean they combine the anti-oxidents into a sunscreen, or just layered them. Can anyone clarify this point for me? [/quote]
Most sunscreen alone doesn't have high enough concentration of C or E, so you better of using a C-serum (10% or higher), with or without E. |
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Sun Jul 15, 2007 5:23 am |
| iaimei wrote: |
| cuppre wrote: |
| From the summary here it is unclear to me whether the authors mean they combine the anti-oxidents into a sunscreen, or just layered them. Can anyone clarify this point for me? |
Most sunscreen alone doesn't have high enough concentration of C or E, so you better of using a C-serum (10% or higher), with or without E. |
Thank you for the info! I am definitely continuing on with my Vit C. |
_________________
Mid-20s Asian female (since I am not mature enough to be called a woman ). Skin is combination with tendency to dryness around the cheeks and prone to blemishes. Naturally coarse black hair . Lastly but most importantly, you need something purchased in Australia I will be happy to CP :. |
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Sun Jul 15, 2007 8:56 am |
| I also continue with my vit c in my regime. I love it so much. |
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Mon Jul 16, 2007 4:59 pm |
| lotus003 wrote: |
just two question ,is C-serum use in AM or PM ?
Can we use 2 time a day ? |
DIRECTIONS said
Apply 2-3 drops to the palm of the hand and massage gently into the skin. Use morning and/or evening under moisturizer. |
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Mon Jul 16, 2007 5:26 pm |
I talked to my local compounding pharmacist about making me a fresh batch of C E Ferulic serum since it will cost so much less ($60) than buying Skinceuticals version. She is going to make it exactly like the original and I found the ingredients listed on a website but I'm not sure what "4x MED" means.
Ingredients:
0.5% ferulic acid, 15% C and 1% E, and 0.5% ferulic acid and exposed to 4x MED.
Can anyone help? |
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marcie klimko
New Member
 
Joined: 10 Aug 2005
Posts: 4
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Mon Jul 16, 2007 7:45 pm |
here is the complete list of ingredients
INGREDIENTS:
Water, Ethoxydiglycol, L-Ascorbic Acid, Propylene Glycol, Glycerin, Laureth-23, Alpha Tocopherol, Phenoxyethanol, Triethanolamine, Ferulic Acid, Panthenol, Sodium Hyaluronate |
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Tue Jul 17, 2007 2:45 am |
| thanks Marcie K! |
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