Just need a quick answer
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enjoys freebies · Thu Jun 05, 2008 2:57 pm Quote

Does anyone happen to know the PPD of Neutrogena Ultra Sheer body mist sunblock spf 70? I'm just wondering/hoping I can use that for my body s/s at the pool this summer or whether I need to order a Euro s/s to getter better PPD.

Thanks Exclamation

enjoys freebies · Thu Jun 05, 2008 3:06 pm Quote

At the risk of sounding completely ignorant, what is PPD?

Embarassed

enjoys freebies · Thu Jun 05, 2008 3:18 pm Quote

agree! Would love to give you a quick answer (if I knew it of course) but I don't understand the question. What is Embarassed

enjoys freebies · Thu Jun 05, 2008 3:28 pm Quote

The sunscreen standards for UVA protection are very confusing. Each country seems to have its own sunscreen standard for UVA protection, and it is very difficult to understand what each sunscreen standard means. A sunscreen label might claim to have UVA protection, but because of lax or meaningless regulations, the sunscreen may provide very little UVA protection. The lax or meaningless UVA standards hurt both the people who need good UVA protection, and they hurt the sunscreen manufacturer who does make an excellent UVA protection product. For this reason, I am proclaiming the Persistent Pigment Darkening Method (PPD) method for measuring UVA protection as the gold standard by which all the other UVA standards are measured in this discussion.

Sunscreens with high PPD ratings do the best to protect those of us with extreme sun sensitivities against UVA light. So assume we want sunscreens with UVA ratings with a PPD greater than 15. ( An estimate of the alternate UVA method's ability to measure a PPD greater than 15 is listed in Table 1. So sunscreens with a PPD rating, a UVA/UVB rating, or a Boots Star rating can provide UVA protection equivalent to a PPD of 15 or greater. Some UVA standards that cannot measure a PPD of 15 or greater include: Japanese PA+++ standard and Australian UVA standard, and the U.S. (no standard).

enjoys freebies · Thu Jun 05, 2008 3:34 pm Quote

Thank you Blues Very Happy

We need a Ciba expert here:

avobenzone 3%, homosalate 15%, octisalate 5%, octocrylene 4%, and oxybenzone 6% are the active ingredients.

enjoys freebies · Thu Jun 05, 2008 3:54 pm Quote

BluesHeart wrote:

The sunscreen standards for UVA protection are very confusing. Each country seems to have its own sunscreen standard for UVA protection, and it is very difficult to understand what each sunscreen standard means. A sunscreen label might claim to have UVA protection, but because of lax or meaningless regulations, the sunscreen may provide very little UVA protection. The lax or meaningless UVA standards hurt both the people who need good UVA protection, and they hurt the sunscreen manufacturer who does make an excellent UVA protection product. For this reason, I am proclaiming the Persistent Pigment Darkening Method (PPD) method for measuring UVA protection as the gold standard by which all the other UVA standards are measured in this discussion.

Sunscreens with high PPD ratings do the best to protect those of us with extreme sun sensitivities against UVA light. So assume we want sunscreens with UVA ratings with a PPD greater than 15. ( An estimate of the alternate UVA method's ability to measure a PPD greater than 15 is listed in Table 1. So sunscreens with a PPD rating, a UVA/UVB rating, or a Boots Star rating can provide UVA protection equivalent to a PPD of 15 or greater. Some UVA standards that cannot measure a PPD of 15 or greater include: Japanese PA+++ standard and Australian UVA standard, and the U.S. (no standard).

I never would have known that in a million years.....Thanks for explaining it all so eloquently Bluesheart..

tsjmom, the active ingredients look like you'll be well protected. The only contraindication would be MMU, but since you'll be using it on your body, it should be great.

enjoys freebies · Thu Jun 05, 2008 4:20 pm Quote

I can't take credit for it Kris. I lost the webpage and was too busy to go back and find the link. Me, I just copied and pasted.

enjoys freebies · Thu Jun 05, 2008 6:38 pm Quote

I neeeeed help! I plugged the #s in to the Ciba calculator, and it said this only had a spf of 22 and ppd 8. WTF? Can someone else do it who has access to Ciba? That can't be right.

enjoys freebies · Thu Jun 05, 2008 7:12 pm Quote

Hi tsjmom, I just ran the actives thru the CIBA too and it came out the same results as u. I too don't understand why the SPF and PPD are so low considered that it says it's SPF 70??

Sry I cannot be of much help. Hopefully some experts here can clear things out for us. Very Happy

enjoys freebies · Thu Jun 05, 2008 8:54 pm Quote

a ciba calculator computes how effective your s/s is? I never heard of this.

enjoys freebies · Fri Jun 06, 2008 4:44 am Quote

Thanks for confirming what I did Stardustdy. That doesn't make sense to me.

enjoys freebies · Fri Jun 06, 2008 7:36 am Quote

what is PPD?

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