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| Author | Topic: sunscreens / protection - skin cancer |
| Sanna 09-19-2002 05:57 AM | I know suntan lotions and makeup with spf on the label should be avoided, but just out of curiosity: what are the chemicals that make the product "solarproof"? and why are they no good? how harmful are they and can they even cause skin cancer? If I have to choose between makeup that has stuff like butylene glycol etc in it (but is not spf anything)and then makeup that has less bad ingredients in it but is "spf 15" for example...which one should I choose? Just to get an idea how bad exactly those factors are.... What causes skin cancer? Any other reasons than excessive sunbathing? Can people of all ages get skin cancer? |
| Wai 09-21-2002 11:04 AM | Sun blocks often contain metals that reflect the sunrays. BUT; this reflection is not 'aimed'; these metals reflect these sunrays in all direction, including to the skin, and therefore have a mirror-effect. Unfortunately, this can concentrate these beams on individual cells / small group of cells. So, in total less sun-beams have to be endured, but they are scattered and may affect individual cells very strongly. Sun rays kill cells. The skin will repair this by creating new cells, but this same destructive influence may also 'only' damage cells, and if that damage is regarding the DNA of cells, this may even result in cancer. Metals in sun-blocks cannot only result in damaged cells without noticing it (no all-over sun-burn), but metals also have pro-oxidative properties themselves. And thus these metals can also damage cells directly (possibly resulting in cancer). quote:"spf" stands for "sun protection factor" the spf is the 'factor of protection' against the sun (against the UVA and UVB rays), not a bad ingredient, it's a measure of how long you can expose your skin to the sun without burning quote:Yes, any aggressive chemical that gets in touch with (or into) your skin can cause skincancer. quote:Yes. |
| koalatank 01-27-2003 12:34 PM | what type of sunscreen should we use, specifically like a brand? the same if were going some where tropical? just slap it over the oil? thanks |
| Wai 01-27-2003 12:40 PM | quote:i cannot advise a brand, but it should be low in metals; compare levels, and then chose the one that is lowest in metals. quote:well, the more intense the sun, the more protection you need. If the sun is not that severe where you live, you can take a milder protection quote:no, you first need to apply the oil, indeed, but then you need to wait for a while to let the oil get absorbed into the skin. Then gently remove the excess oil with a cotton ball (don't rub) and then apply the sunscreen |
| kris 04-07-2003 03:44 PM | I am confused, in one post it says spf factors are bad, and in another (under another heading) it says spf factors are not a bad ingredient????? Which is it....? |
| Cheryl2002 04-07-2003 08:27 PM | Sorry wai, just to add on....I have been just using sesame oil for the past months....because I am still trying to find a sun block that's 'safer'....I have been comparing lables....and would liek to seek your opinon on this brand - La Roche Posay Anthelios T SPF 30, it contains: Aqua, C12-15 Alkyl Benzoate, Cyclopentasiloxane, Titanium Dioxide, Isocetyl Stearate, Propylene Glycol, Cetyl Dimethicone Copolyol, Caprylic/Capric, Triclyceride, Drometrizole Trisiloxane, Terephthalylidene Dicamphor Sulfonic Acid, Triethanolamine, PVP/Eicosene Copolymer, Aluminium Starch Octenylsuccinate, Capryloyl glycine, Acetylated Glycol Stearate, Capryl Glycol/Caprylyl Glycol, Dimethiconol, Propylene Carbonate, Stearalkonium Hectorite, Tristearin, (F.I.L. C14346/1). Or...have anyone found a suitable sun block to be used? THANK YOU! |
| Wai 04-11-2003 12:26 PM | quote:where does it say that spf factors are bad? quote:it contains 2 (propylene glycol and triethanolamine) of the "10 unwanted" ingredients (and titanium oxide), so, maybe you can look for another one? |
| jewel 04-11-2003 09:51 PM | Dear Wai, You are a generous genius. Thank you for sharing your knowledge. I am grateful. Please review these ingredients and let me know if I can use this sun screen. I do not have acne sensitive skin, following your diet to improve my health. Clarins Oil-Free Sun Care Spray Octyl Methoxcinnamate 7.5%, octocrylene 7%, oxbenzone (benzophenone-3) 5%, octyl salicylate 5%, alcohol denat. cyclomethicone, phenyl trimethicone, fragrance, plantain (platago ovata) extract, birch (betula alba), bark extract, eupa thorium, ayapana extract, glycerin, butlene glycol, tocopheryl acetate, fd&c yellow. Thank you. Warmest regards, Diamond |
| kris 04-13-2003 02:20 PM | it was in the "make up/skin health" thread, maybe you meant it specifically regarding foundation, I am not sure, it just confused me a bit. Wai Administrator Member # 1 posted September 09, 2002 12:15 PM ------------------------------------------------------------------------ quote: ------------------------------------------------------------------------ Sanna wrote: are SPF factors good or bad? ------------------------------------------------------------------------ Bad. ------------------------------------------------------------------------ Posts: 1303 | Registered: Jul 2002 | IP: Logged |
| Wai 04-18-2003 02:10 PM | Cystal, whooops, i had never noticed that my entire post had not appeared, except for the word "bad"... i have corrected that thank you for pointing it out! |
| Wai 04-18-2003 02:43 PM | Diamond, Clarins has a lot of high quality products regarding the ingredients: Many of the fd&c pigments and ingredients in fragrance can irritate the skin, so closely monitor your skin's reaction Butylene glycol has neuropharmacological properties, but is not considered carcinogenic Octyl Methoxcinnamate stimulates the creation of a 'perfect' (ídeal submicron-) emulsion, and isn't toxic (in these low amounts), just as octocrylene, cyclomethicone and phenyl trimethicone oxybenzone is absorbed, but eliminated in the liver octyl salicylate seems to be safe in concentrations below 30% a too high level of vitamin e (the tocopherol family) accelerates shedding of the skin, which is not good (what's the percentage / level?) conclusion: seems fine to be, but you should closely monitor your skin's reaction; it remains personally very different |
| Cheryl2002 04-18-2003 11:52 PM | Thanks Wai....let em contineu in my quest for SPF products....how about this: Dr. Hauschka Sunscreen Lotion SPF 15 Ingredients (INCI): Water (Aqua), Peanut (Arachis hypogea) Oil, Alcohol, Jojoba (Buxus chinensis) Oil, Titanium Dioxide, Quince (Pyrus cydonia) Seed Extract, Shea (Butyrospermum parkii) Butter, Sweet Almond (Prunus dulcis) Oil, Horse Chestnut (Aesculus hippocastanum) Bark Extract, Sucrose Distearate, Lecithin, Avocado (Persea gratissima) Extract, Fragrance (essential oil), Oryzanol, Xanthan Gum, Candelilla (Candelilla Cera), Esculin, Propolis (Propolis Cera) Thank you! |
| jewel 04-23-2003 08:33 PM | Dear Wai, Thank you for replying to my post. This message board is a wonderful support system. I went ahead and purchased the Clarins Oil-Free Sun Care Spray. The percentage of tocopheryl acetate is not listed. I will give it a try and watch for adverse reactions. With Gratitude, Your disciple, Diamond |
| Wai 04-25-2003 06:48 AM | quote:it is good that it contains much fat, but i hope the level of titanium oxide isn't too high you know what is said about fragrances seed extracts usually contain toxins, but quince seeds are rather harmless (stones contain more toxic substances) the chestnut bark extract may contain toxins Sucrose Distearate is a sucrose ester, used as an insectiside, and not totally harmless Lecithin from different sources can elicit allergic / asthma like reactions, and one should therefore carefully monitor one's skin's reaction Xanthan Gum increases the uptake of accompanying chemicals into the skin Candelilla is considered safe for cosmetic use but can cause skin appendages Esculin is not okay because it has water-retaining properties (and therefore they claim it has anti-stretchmark properties) Oryzanol seems not to be carcinogenic (and is considered an 'antioxidant'), but it (though metabolized) does influence your triglyceride (and cholesterol) levels, which is unnacceptable in my view. Propolis also affects triglyceride levels... So, in summary, i would advise against using it i have now listed information about skincare ingredients at this page: http://www.3.waisays.com/skincare.htm |
| aria 06-06-2003 11:01 AM | Does one need sunblock only in direct sunlight to prevent skin damage from the sun, or do we need it even on cloudy days as some "health" magazines say? And; Does it cause skin damage to be out on a sunny day but not in direct sunlight without sun block? . |
| Wai 06-06-2003 11:15 AM | aria, i moved your post to this thread because this thread is about the same topic please first check out the forum for threads about the topic you want to ask questions about before posting a new thread, okay??? or search the entire board quote:the less filtered the sunrays, the more protection you need the sunrays are reflected in lots of materials (and the strongest in water, glass, metals etc), and therefore all daylight is to some extend a little bit 'direct' sunlight you can also get a tan in cloudy weather so, it really depends on how much the sunlight is filtered (how cloudy) / not-reflected, and thus you should judge for yourself quote:living is cell damage daylight exposure is always some skin damage one extreme is too little sun, while the other is too much sun; there is a lot of grey area in between, but grey still is a mixture of black (too much) and white (too little)... you need to decide for yourself what shade of grey is okay for you (sorry) |