http://thebeautybrains.com/2007/05/06/is-it-safe-to-expose-sunless-tanned-skin-to-the-sun/ Cosmetic chemists answer your beauty product questions! We are a group of cosmetic scientists who understand what the chemicals used in cosmetics really do, how products are tested, and what all the advertising means. Sun, 08 Nov 2009 05:27:39 -0500 http://wordpress.org/?v=2.8.5 hourly 1 http://thebeautybrains.com/2007/05/06/is-it-safe-to-expose-sunless-tanned-skin-to-the-sun/comment-page-1/#comment-20315 thebeautybrains Mon, 17 Sep 2007 11:05:34 +0000 http://thebeautybrains.com/2007/05/06/is-it-safe-to-expose-sunless-tanned-skin-to-the-sun/#comment-20315 The DHA is too big a molecule to penetrate the skin very far. So, the reactions that you're talking about will be on the surface and haven't proven to be harmful. The FDA has approved DHA as a safe colorant. The DHA is too big a molecule to penetrate the skin very far. So, the reactions that you’re talking about will be on the surface and haven’t proven to be harmful. The FDA has approved DHA as a safe colorant.

]]> http://thebeautybrains.com/2007/05/06/is-it-safe-to-expose-sunless-tanned-skin-to-the-sun/comment-page-1/#comment-20206 thebeautybrains.com » Blog Archive » Finally, A Safer Sunless Tanner? Tue, 11 Sep 2007 05:02:02 +0000 http://thebeautybrains.com/2007/05/06/is-it-safe-to-expose-sunless-tanned-skin-to-the-sun/#comment-20206 [...] chaste question: I understand from your previous article that DHA sunless tanners are dangerous because they don’t protect skin from UV. Are there any [...] [...] chaste question: I understand from your previous article that DHA sunless tanners are dangerous because they don’t protect skin from UV. Are there any [...]

]]> http://thebeautybrains.com/2007/05/06/is-it-safe-to-expose-sunless-tanned-skin-to-the-sun/comment-page-1/#comment-19058 patricia Mon, 09 Jul 2007 07:05:08 +0000 http://thebeautybrains.com/2007/05/06/is-it-safe-to-expose-sunless-tanned-skin-to-the-sun/#comment-19058 Hi I appreciate you site so much. I read the articles regarding self tanners. When the sugar/erythralose reacts with the dihydroxyacetone it creates the Maillard reaction in the epidermis. I am under the impression that the Maillard reaction is itself an aging process that is exacerbated by Diabetes and excess sugar in the blood. I heard that the development of A.G.E.'s make age spots by binding with proteins and otherwise makes our skin more rigid. Aren't the self tanners then just aging you in another more insidious way (maybe even more damaging) than the sun would? I am certainly not an expert (just a biochem student), but am worried that we are then just robbing Peter to pay Paul. Like there really is no free lunch when it comes to paying for a tan. Please advise. Hi
I appreciate you site so much. I read the articles regarding self tanners. When the sugar/erythralose reacts with the dihydroxyacetone it creates the Maillard reaction in the epidermis. I am under the impression that the Maillard reaction is itself an aging process that is exacerbated by Diabetes and excess sugar in the blood. I heard that the development of A.G.E.’s make age spots by binding with proteins and otherwise makes our skin more rigid. Aren’t the self tanners then just aging you in another more insidious way (maybe even more damaging) than the sun would? I am certainly not an expert (just a biochem student), but am worried that we are then just robbing Peter to pay Paul. Like there really is no free lunch when it comes to paying for a tan.
Please advise.

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