sunblock
EDS Skin Care Forums Forum Index » Skin Care and Makeup Forum

Tue May 11, 2004 7:24 pm

is there really a difference between an SPF 30 and 40 or 45? or is it all just hype? thats what ive heard. also, what are your favorite sunblocks that wont clog pores and are good coverups(and also dont include vitamin a)? anyone know anything about Coppertone Sunblock Waterproof Lotion SPF 45?

Wed May 12, 2004 2:38 am

After years of not using sunblock, because I always broke out, I now use DDF organic sunblock spf30, and it is fantastic, I've been using it for 6 weeks and not a hint of a reaction.

Wed May 12, 2004 5:08 am

I would say that unless your job involves being outside in the harsh sun for many hours, then SPF30 or SPF50 won't make a difference to you. I'm really liking the Skinceuticals SPF30 (Ultimate UV Defense) at the moment.

Mabsy

free skin care · Wed May 12, 2004 12:43 pm

I get hyperpigmentation along w/ sensitive skin that burns very easily. I love Photoderm SPF 100. I know people say anything after 20 is hype, but I can definitely say that I've seen a difference in the level of protection. I used to still get brown spots using an SPF 30 and wearing a hat. I had to stand in line outside in the middle of the afternoon a couple weeks ago in bright sun wearing the SPF 100 and had no problems for the first time!

free skin care · Wed May 12, 2004 3:40 pm

The highest SPF I have ever come across was 60, but not 100. Shock

!I really am wondering how is the texture, is it greasy? My experience tell me that the higher the SPF, usually, the more greasy it comes Wink

.. I cannot wear high SPF on my face therefore! Anyway.. I am currently using the Skinceutical 30, not bad, not my favourite though! but I agree with Mabsy, unless you need to expose to sun for exceptionally long hours .. it makes no big difference anything higher than 30 Laughing

Wed May 12, 2004 9:43 pm

I usually use Ti-Silc Sheer SPF 45 (from Procyte) and I find that it has a good consistency and tint.

Quote:

I love Photoderm SPF 100.

I didn't know they made SPF 100. Wow. I've got to check this out. My mum is going to be excited to try it out.

free skin care · Sat May 15, 2004 11:10 pm

I think the highest spf I have seen is spf 120 in Japan!

Sun May 16, 2004 3:16 pm

I have never heard of the one with an SPF120, but I know that Photoderm has an SPF 100 with a PPD of 31(Persistent Pigment Darkening - the European UV filter rating) which is the highest, that I know of, right now. Even though it has an SPF100 it doesn't mean that will give you 100% coverage. No sunscreen, at least for now, will do that. It is very important to use a sunscreen with at least an SPF 30 since most of people won't apply enough, thus decreasing it's efficiency - an SPF30 will become an SPF 20 or even 15.

Here is excerpt from another website:
"Most people apply only a small fraction of the amount of sunscreen needed to achieve the SPF rating of their applied product. One reason that sunscreens are insufficiently applied is that there is no appropriate guideline on the product label. In the USA, SPFs are tested at an applied thickness of 2 mg/cm2. About 35 ml, or 4 oz, is required to cover the average adult body. This application thickness is roughly equivalent to a little more than half a teaspoon for each arm, the face, and the neck, and a little more than a teaspoon for each leg, the chest, and the back. A higher application rate results in increased protection.

The relationship between effective SPF and the amount of sunscreen applied is not linear. Using only half the proper amount (1 mg/cm2) of an SPF 25 sunscreen yields a measured SPF much less than half of 25 or of only 7.5. This amount is only marginally more protective than sunscreens labeled SPF 15 and SPF 8 when the same quantity is applied. Furthermore, skin is not a flat surface, but is made up of cavities and crests and if an insufficient amount of cream is applied, it has a tendancy to be localised in the cavities leaving the crests unprotected. If only a small quantity is applied then this uneven coverage will be exaggerated.

Because the typical consumer does not approach this application rate, some dermatologists recommend sunscreens with SPF 30+ for everyone, particularly for those who are highly exposed. Hats, protective clothing, and shade seeking behavior especially between 10 AM and 2 PM are also advisable for outdoor activities."

Here is a great link:
http://www.basiaandcarol.com/Sunscreens

Julia

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