http://thebeautybrains.com/bbforum/categories/the-science-of-beauty/p2/feed.rss Tue, 21 May 13 08:03:36 -0400 Click here to visit the Beauty Brains blog. The Science of Beauty - Beauty Questions Answered en-CA http://thebeautybrains.com/bbforum/discussion/1366/what-happens-to-powdered-zinc-oxide-when-you-mix-it-with-dimethicone Tue, 06 Apr 2010 20:39:26 -0400 Zuz 1366@/bbforum/discussions I've been reading about physical sunscreens. A lot. And I'm starting to wonder how, aside from the nano-particle safety controversy, zinc oxide can be a stable sunscreen applied to the skin. According to Wikipedia it's degraded by most acids, reacts slowly with fatty acids in oils to form carboxylates, and when it's combined with water and UV light on the skin hydrogen peroxide is formed?! I guess that's why regular old zinc or titanium oxide sunscreens are so very greasy?

So I read about dimethicone-coated micronized zinc, Z-Cote hp1, but there's not a product out there with it I can afford (except Blue Lizard's face, which also has some things I don't want to use year round.) And of course, I think to myself, how hard can it be to coat some zinc oxide with some dimethicone? I mean I read a little about the process and yes, it sounded hard... but hey, I don't need the best-coated zinc oxide in the world, I'm sure it doesn't have to be all that...
Sooooo... Yep, my idea is to buy some dimethicone, micronized zinc oxide, stir a lot... really... until I get a paste I can mix with my moisturizer... either pour it in and, again, stir a lot, or if that's really not going to work, on the side like a primer, until I get bored with the whole routine...

How do you figure that'll work out for me?

(Don't worry, for sunburn protection I'll still use a chemical sunscreen. But I really want a safe moisturizer with some physical UVA protection, without uncoated micronized zinc, that doesn't leave me extremely greasy or white, that I can afford.)]]> http://thebeautybrains.com/bbforum/discussion/1437/vitamin-e-hilarity Tue, 04 May 2010 14:08:02 -0400 Curses 1437@/bbforum/discussions
P.S. Long time, no see, BB's!]]> http://thebeautybrains.com/bbforum/discussion/1642/looking-for-cosmetic-chemistry-interns... Mon, 02 Aug 2010 01:20:38 -0400 bjartistry 1642@/bbforum/discussions -BJ-]]> http://thebeautybrains.com/bbforum/discussion/135/how-to-be-a-cosmetic-scientist Wed, 31 Oct 2007 23:01:26 -0400 darkeyes 135@/bbforum/discussions
Thanks.]]> http://thebeautybrains.com/bbforum/discussion/1352/what-is-the-ingredient-in-eyeliner-and-eyeshadow-which-makes-it-a-base-on-the-ph-scale Wed, 31 Mar 2010 22:02:53 -0400 Makemeupp 1352@/bbforum/discussions im desperate to knooww!!!!
im doing research and i cant seem to find it anywhere
PLEASE HELP!!]]> http://thebeautybrains.com/bbforum/discussion/1162/freeze-247-wrinkle-cream-w-muscle-relaxant-better-than-botox Sat, 26 Dec 2009 14:05:13 -0500 volcom4058 1162@/bbforum/discussions http://thebeautybrains.com/bbforum/discussion/1076/what-do-you-believe-about-beauty-products-that-you-are-certain-is-true Wed, 04 Nov 2009 15:20:46 -0500 Left Brain 1076@/bbforum/discussions "The trouble with people is not what they don’t know, but that they know so much that ain’t so."
Of course, it's nearly impossible to know that something you "know" is not so.  However, maybe if we share what we absolutely "know" about beauty products, we can root out some of the things "...that ain't so."
So leave your comment.  What do you absolutely believe is true about beauty products or beauty care?
I'll start...
I know shaving hair will not make it grow back thicker or fuller.]]> http://thebeautybrains.com/bbforum/discussion/963/which-is-the-best-cream-to-eliminate-facial-brown-spots- Sat, 08 Aug 2009 16:04:39 -0400 Gia 963@/bbforum/discussions http://thebeautybrains.com/bbforum/discussion/884/apply-serums-before-or-after-toner Thu, 25 Jun 2009 18:51:40 -0400 SR 884@/bbforum/discussions
An educator for a natural skin care line told me you should apply a serum after cleansing the skin, then
apply a toner. The rationale was that the pH of the skin is disrupted after cleansing and the serum
would penetrate more effectively as a toner readjusts the skins pH. What are your thoughts on this?]]> http://thebeautybrains.com/bbforum/discussion/799/photostability-of-sunscreens Fri, 15 May 2009 15:07:36 -0400 Ally E. 799@/bbforum/discussions http://thebeautybrains.com/bbforum/discussion/741/do-powder-cosmetics-need-a-preservative Thu, 16 Apr 2009 07:14:49 -0400 Dreniva 741@/bbforum/discussions http://thebeautybrains.com/2007/02/10/do-powder-cosmetics-need-a-preservative/

If the loose face powder doesn't need preservative because no organism will stay alive in a waterless environment but why the Anthrax Virus remain to be alive in the powder that has no water. Remember that incidents in 2001 about Anthrax attacks?
http://en.wikipedia.org/wiki/2001_anthrax_attacks]]> http://thebeautybrains.com/bbforum/discussion/377/oil-penetration-abilities Sat, 30 Aug 2008 01:45:02 -0400 krsn89 377@/bbforum/discussions
Not that I was doubting The Beauty Brains' knowledge, but I always like to learn more so I looked up the article cited and found that it was incorrect (J. Cosmet.Sci 52, 169-184, 2001). That article only mentions coconut oil & mineral oil, not the other oils mentioned in the Beauty Brains' article. Was this an incorrect citation? If you have the actual article link, I would really be thrilled to read it.

Thanks in advance and keep up the awesome work!
Cheers,
- Kelly]]> http://thebeautybrains.com/bbforum/discussion/313/eat-your-fish-girls Mon, 07 Jul 2008 11:28:25 -0400 Left Brain 313@/bbforum/discussions "girls who ate more omega-3 scored significantly better on four cognitive tests, including an IQ test."
I do not know about you but tilapia will be on my menu tonight.  Unfortunately, there are only a few fish dishes I like.  How about you?]]> http://thebeautybrains.com/bbforum/discussion/304/do-you-karaoke Tue, 01 Jul 2008 08:53:05 -0400 Left Brain 304@/bbforum/discussions And it turns out this scientific study suggests that most people are better singers than they think.
So, how about you? Do you karaoke?]]> http://thebeautybrains.com/bbforum/discussion/289/adding-color-to-foundation Mon, 02 Jun 2008 22:39:33 -0400 Bethany 289@/bbforum/discussions http://thebeautybrains.com/bbforum/discussion/283/is-the-life-extension-foundation-a-valid-source-of-infosupplements Wed, 21 May 2008 12:56:55 -0400 ieatbugs 283@/bbforum/discussions http://thebeautybrains.com/bbforum/discussion/276/lancome-absolue-premium-bx-cream-question Sun, 11 May 2008 23:22:45 -0400 Bethany 276@/bbforum/discussions
It blows my mind that these companies can charge so much for this and that people buy it.]]> http://thebeautybrains.com/bbforum/discussion/214/nail-growth Mon, 28 Jan 2008 15:14:12 -0500 Satil 214@/bbforum/discussions http://thebeautybrains.com/bbforum/discussion/242/did-you-get-your-free-copy-of-the-beauty-brains-basic-science-report Tue, 18 Mar 2008 20:55:24 -0400 Left Brain 242@/bbforum/discussions Go get your free copy here.
Then leave us some comments and let us know what you think.  We are working on volume 2 and want to make sure we include everything that the Beauty Brains community wants. 
 ]]> http://thebeautybrains.com/bbforum/discussion/190/teeth-whitening Wed, 19 Dec 2007 08:17:09 -0500 Judy 190@/bbforum/discussions
I will be using DayWhite/NiteWhite from Discus Dental and is $350. With this procedure your dentist makes the dental jackets/trays from impressions of your teeth and you then syringe in the bleaching gel into the jacket/trays and wear the them 30 minutes-1 hr./day for approx 2 weeks when you dentist checks to see how the bleaching is going.

Yesterday on my first application I spurted the whitening gel out of the syringe and onto my desk instead of into the tooth tray. This morning my gums are a bit sensitive but I was told to expect that.

Anyone else tried any teeth whitening methods? HINT: Don't tell me if you have used DayWhite/NiteWhite and have had to sue your dentist! Or don't tell me that DiscusDental has been put out of business by the FDA.]]> http://thebeautybrains.com/bbforum/discussion/187/make-your-own-soap-or-other-cosmetics Sun, 16 Dec 2007 08:12:40 -0500 Left Brain 187@/bbforum/discussions http://thebeautybrains.com/bbforum/discussion/97/who-do-you-look-at-more-men-or-women Mon, 24 Sep 2007 19:05:11 -0400 Left Brain 97@/bbforum/discussions
Nevertheless, they do have some fascinating studies. Here's one that suggests people in committed relationships tend to look at same sex people more than the opposite sex. The surprising part is that even men in committed relationships look more at other men. They say it has something to do with sizing up the competition.

I don't know. It sounds reasonable but very difficult to prove. Do you believe it?]]> http://thebeautybrains.com/bbforum/discussion/74/way-to-go-science Tue, 04 Sep 2007 10:43:02 -0400 PurpleRules 74@/bbforum/discussions
[url]http://dsc.discovery.com/news/2007/09/04/dating_hum.html?category=human&guid=20070904104530&[/url]

Those of you who aren't already attached now have one more excuse to spend money on health and beauty products -- you're just trying to increase the odds of finding a good mate.

I can't get my html tags to do do their thing so you'll have to cut and paste the link but it's worth it: trust me.]]> http://thebeautybrains.com/bbforum/discussion/73/science-tattoos-do-you-have-any Fri, 31 Aug 2007 07:26:15 -0400 Left Brain 73@/bbforum/discussions
The other day I saw this entry on The Loom about science tattoos. Look at this gallery of tattoos that other scientists get. I think my favorite is the DNA molecule.

I don't have any tattoos but if I did it would be some kind of microscopic animal. I just love microbiology!]]> http://thebeautybrains.com/bbforum/discussion/56/l-ascobic-acid Tue, 21 Aug 2007 23:02:56 -0400 SageMotherRaven 56@/bbforum/discussions I am almost out of the first mixture that I made, which was L-ascorbic acid dissolved in a little, very little, water, then added to a little grape seed oil for night time use. I would like to try another batch but am unsure about the best way to blend it.

Any suggestions?]]>