livesimply
Member
- Joined
- Aug 18, 2013
- Messages
- 142
Bumping--hoping for a response from any knowledgeable people here.
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It looks nice to me. I don't know if you heard back from the company, but I imagine the grapeseed oil is not a significant enough fraction of it to worry about.Bumping--hoping for a response from any knowledgeable people here.
Nanoparticles of what?nwo2012, how do you make sure the zinc oxide you get contains no nanoparticles, considering that nanoparticles have been found in most of the sunscreeens that boasted to have none (by Friends of the Earth last year I believe)?
Thanks
Of the zinc oxide. I didn’t realize companies were falsely claiming this but it makes sense because many sunscreens are too transparent to believe (non-nano tends to leave a white film)Nanoparticles of what?
Is there such a rule? If my zinc oxide leaves a film can I assume it's non-nano?Of the zinc oxide. I didn’t realize companies were falsely claiming this but it makes sense because many sunscreens are too transparent to believe (non-nano tends to leave a white film)
I’m pretty sure if it leaves a film you can trust it’s non-nano. I’m most wary of these facial sunscreens/moisturizers advertising 30-50 spf and going on completely translucent.Is there such a rule? If my zinc oxide leaves a film can I assume it's non-nano?
Thank you. I don't remember what exact proportions I used to make a mix, but based on leftovers in the jars I assume it was no more than 10g of zinc oxide per about 150g solution. But it's very thick, much different to commercial sunscreens.I’m pretty sure if it leaves a film you can trust it’s non-nano. I’m most wary of these facial sunscreens/moisturizers advertising 30-50 spf and going on completely translucent.
A lower spf sometimes doesn’t leave a film. I’ve made it before and when I used a smaller amount of non-nano ZO it went on clear. One day I’ll try to recreate it because it was a great batch.
I think urea can cause sun sensitivity. Was your homemade one just thicker or also more filmy? What ingredients did you use?Thank you. I don't remember what exact proportions I used to make a mix, but based on leftovers in the jars I assume it was no more than 10g of zinc oxide per about 150g solution. But it's very thick, much different to commercial sunscreens.
I wonder if anyone adds urea to the mix? Would it be inadvisable, considering that urea helps other substances to penetrate the skin and that effect may not be very desirable with zinc oxide?
I use Shade All-Natural Sunscreen on my face when I golf. I got 4 packs of it for less than $50.00. Zinc based. It works great, just a pain in the **** to get it off my face after. haha
It creates a film, which, dependent on thickness of applied layer, finally disappears or not, but I'm not sure if it's because of the particles of ZO or if it just mechanically stays on the skin because of its overall consistency. I used zinc oxide, coconut oil, shea butter and beeswax. Mine is also a bit clumpy and the zinc oxide I have is also clumpy, not sure if it tells anything about it. I'm gonna message the seller.I think urea can cause sun sensitivity. Was your homemade one just thicker or also more filmy? What ingredients did you use?
Bumped on this related sentence in the old newsletter, so at least it has some upside:OP has written here that Ray thinks ZO is the least toxic of the ingredients in sunscreens. Does he elaborate anywhere on that? Is it only about nano-particles or zinc oxide is toxic in itself, or it would be but non-nano is not absorbed through the skin?