Vitamin C + Retin-A = ?

I use Retin-A micro and just ordered PSF Vit-C serum. Anyone else use Retin-A and a Vitamin C product? What order do you use them? Do you alternate nights or put one on top of the other?
Loose botticelli curls and waves
No silicones/no sulfates since March 2008
I know RedCatWaves uses both. If she doesn't pop in here, you may want to PM her.
Minneapolis, MN
I use my C-Serum in the AM, wait 5 minutes, then use my other AM products. You wanna use your Antioxidants during the day to fight free radicals.

I use my Renova at night, 2o minutes after washing. In the winter I add a thin layer of moisturizer 30 minutes later. They claim these types of products are most effective overnight while your skin "sleeps". Plus they increase sun sensitivity.
Curls,Coils,Waves & WhatKnot
3miii/My HGs tame bulk&frizz/Give definition w/o crunch
My Photobucket Album
Retin A at night -- Vitamin C in the daytime. You shouldn't use them together and you shouldn't use Retin A during the day.
I just found this article. I've been using retinol and Vit C at night for 2-3 months and my skin is really looking good. I apply ROC Retinol first and about 5-10 mins later the Vit C at night only and it's been fine.

http://content.karger.com/ProdukteDB....asp?Doi=83708

Two double-blind studies versus vehicle were carried out to investigate the effects of a topically applied retinol plus vitamin C combination on epidermal and dermal compartments of aged or photoaged human skin. The two studies were performed on postmenopausal women who were selected for treatment based on the mild level of elastosis of their facial skin. At completion of treatment, skin biopsies were collected and processed for classical histology and immunohistochemistry. In the first study (aged skin), 8 volunteers applied the retinol- and vitamin C-containing preparation on the ventral side of one elbow and the vehicle on the other elbow twice daily for 3 months. After the 3-month treatment we observed histological changes mainly within the epidermis. The stratum corneum was thinner with a compact pattern, whereas the epidermal proliferation increased, resulting in a thickening of the viable epidermis. Moreover, the interdigitation index was increased. In the second study (photoaged skin), 11 volunteers were divided in two groups; one applied the retinol- and vitamin C-containing preparation and the other one the vehicle on their face twice daily for 6 months. Facial skin samples presented histologic hallmarks of photoaging, i.e. accumulation of elastotic material in the papillary dermis. After the 6-month topical treatment, the observed histological changes were mainly concentrated at the dermal level. Both treated and control groups showed the same distribution pattern of type I procollagen, however, the high level of type III procollagen originally observed in photoaged skin was reduced in the retinol- and vitamin C-treated group, resulting in a lower type III-to-type I procollagen ratio. Furthermore, a wide band of eosinophilic material just beneath the epidermis, devoid of oxytalan fibers and forming the 'grenz zone', appeared more frequently and was larger in the retinol- and vitamin C-treated group. In conclusion, our results show that repeated topical application of a preparation containing both retinol and vitamin C is able to reverse, at least in part, skin changes induced by both chronologic aging and photoaging.
3c
Poo: KBB shampoo bar or Shikai moisturizing shampoo
CoWash: VO5 kiwi
Cond: Robert Craig, Tresemme Natural, or Fekkai Shea Butter
Leave in/Styling: Grapeseed oil, KBB milk, KCCC, and Aveda Confixor
I just found this article. I've been using retinol and Vit C at night for 2-3 months and my skin is really looking good. I apply ROC Retinol first and about 5-10 mins later the Vit C at night only and it's been fine.

http://content.karger.com/ProdukteDB....asp?Doi=83708

Two double-blind studies versus vehicle were carried out to investigate the effects of a topically applied retinol plus vitamin C combination on epidermal and dermal compartments of aged or photoaged human skin. The two studies were performed on postmenopausal women who were selected for treatment based on the mild level of elastosis of their facial skin. At completion of treatment, skin biopsies were collected and processed for classical histology and immunohistochemistry. In the first study (aged skin), 8 volunteers applied the retinol- and vitamin C-containing preparation on the ventral side of one elbow and the vehicle on the other elbow twice daily for 3 months. After the 3-month treatment we observed histological changes mainly within the epidermis. The stratum corneum was thinner with a compact pattern, whereas the epidermal proliferation increased, resulting in a thickening of the viable epidermis. Moreover, the interdigitation index was increased. In the second study (photoaged skin), 11 volunteers were divided in two groups; one applied the retinol- and vitamin C-containing preparation and the other one the vehicle on their face twice daily for 6 months. Facial skin samples presented histologic hallmarks of photoaging, i.e. accumulation of elastotic material in the papillary dermis. After the 6-month topical treatment, the observed histological changes were mainly concentrated at the dermal level. Both treated and control groups showed the same distribution pattern of type I procollagen, however, the high level of type III procollagen originally observed in photoaged skin was reduced in the retinol- and vitamin C-treated group, resulting in a lower type III-to-type I procollagen ratio. Furthermore, a wide band of eosinophilic material just beneath the epidermis, devoid of oxytalan fibers and forming the 'grenz zone', appeared more frequently and was larger in the retinol- and vitamin C-treated group. In conclusion, our results show that repeated topical application of a preparation containing both retinol and vitamin C is able to reverse, at least in part, skin changes induced by both chronologic aging and photoaging.
Originally Posted by mandyv
That has been my experience as well. But I use my C in the AM to better combat daily free radicals and my Retinol at night.
Curls,Coils,Waves & WhatKnot
3miii/My HGs tame bulk&frizz/Give definition w/o crunch
My Photobucket Album
I use my vitamin C serum in the AM and my Retin-A Microgel in the PM.
I use my vitamin C serum in the AM and my Retin-A Microgel in the PM.
Originally Posted by misspam
Curls,Coils,Waves & WhatKnot
3miii/My HGs tame bulk&frizz/Give definition w/o crunch
My Photobucket Album
How are you all able to use Vitamin C and Retin A? My skin got all flaky and dry, so I had abandon the Vit C.
Loose botticelli curls and waves
No silicones/no sulfates since March 2008
How are you all able to use Vitamin C and Retin A? My skin got all flaky and dry, so I had abandon the Vit C.
Originally Posted by LoloDSM
How long have you used the Vit C and Retin-a? If you began using both at the same time, then you might experience some irritation. You may need to taper off for awhile and then gradually increase to every day. I had already been using the Retin-a for 8 months before I started using Vit C.
I think I'm screwed. I've been using Retin A for 15+ years and added the Vit C every other day and then every third day. It was still too much, but then I've got very sensitive skin.
Loose botticelli curls and waves
No silicones/no sulfates since March 2008
I think I'm screwed. I've been using Retin A for 15+ years and added the Vit C every other day and then every third day. It was still too much, but then I've got very sensitive skin.
Originally Posted by LoloDSM
Yes, I would say if you have been on Retin-A for that long and you have very sensitive skin, adding a Vit C serum may not be an option for you. Have you looked into a different brand that might not be as strong?
I think I'm screwed. I've been using Retin A for 15+ years and added the Vit C every other day and then every third day. It was still too much, but then I've got very sensitive skin.
Originally Posted by LoloDSM
I'm on a Retin A type product, and I apply my Vit C product, wait a half hour then apply my Retin A product, since I felt like my face burned when I applied the two products too close together in time. Maybe try more time in between applying the products?
Trying to figure it all out again.

3a/3b. Med/coarse texture. Low porosity.

Protein sensitive and extremely dry.
I really didn't want to give up on PSF's Vitamin C, so I bought another bottle to try. This time I also used the PSF Antioxidant Booster mixed in the Vit C, and guess what?!?!?!? No dryness or peeling! Here is the link for the booster: http://www.psfskincare.com/xcart/pro...cat=252&page=1

I also had an extra booster from a previous order and put it in my new Copper Serum. Love PSF!
Loose botticelli curls and waves
No silicones/no sulfates since March 2008
I can recommend a reputable pharmacy (Retin-A) - 7-rx.com Good price and quality.

Last edited by Emma1413; 10-04-2012 at 10:56 PM.

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