Does sunscreen get less effective after time. I never see expiration dates on the bottles.?
115975
"If you don't see a date, the rule of thumb is that the active ingredients in sunscreen (like zinc, titanium dioxide and Parsol 1789) should remain stable and effective for about three years, according to David Leffell, M.D., professor of dermatology at Yale School of Medicine. But if it smells funny, feels lumpy or has a bizarro color, dump it. To keep your sunscreen as close to new as possible, store it in a dry spot at room temperature with the lid tightly fastened."
820112
I got a tan in Florida in June, and its gone. I used this adoe stuff and my skin is white again. It takes about 5 months but its totally worth it. I have healthy, white skin and I love it!
248136
Depends on the brand.  Check the labling on the bottle you are  using or have questions about
391242
apply AFTER SUN-BURN GEL\nit is available in different brands in drugstores or supermarkets
497803
EVERYTHING has a shelf life.. (Except maybe twinkie's..)  The chemical makeup of mdma (ecstasy) does change over time as it's exposed to different elements... use caution when making decisions on what you'd willingly put in your body!
238587
Your question makes it sound like we come with expiration dates or "best if used by" dates. There is no set age. Eveyone is different.
637919
Usually doesn't matter if they've gone beyond the expiration by a little bit - if they have been kept in a cool dry place.\n\nSome meds could cause harm if they're real old, and others could lose some of their potency.  \n\nThe dates the pharmacy puts on pills is usually 1 year after the day you get them.  The bottle that they got them from might say they don't expire till 2010.  Ask pharmacist next time what the bottle he's getting them from says.
829171
I only have an anectodatal answer for you.  But, I had a boyfriend who constantly used the stuff.  His skin got worse and worse.  I suggested that maybe he should gradually cut back to see if his skin would do better and after two weeks he wasn't using it at all and his skin was a lot better.  I thin k it over dryed his skin and therefore, it over produced oils to try and compensate and then it became a vicious cycle.  By the way, a lot of people swear by Pro-Activ to prevent it in the first place and not to treat it after it has occurred.  Good luck
1116360
Usually they are valid for one year from the date of issue. The only exception to this rule is for pain meds...they expire sooner. Not sure if it is 3 months or 6 months for pain meds. \n\nCall your pharmacy and ask them specifics. You don't have to give your name. Just ask about the expiration dates. \n\nGood luck! Hope you feel better.
1172243
Yes it does. Some brands put an expiration date on their bottle. The effectiveness of it gets reduced over time and usually only a year, although some can last up to 3 years if stored properly. Things to consider are where you store the lotion, because heat can make it go bad earlier. I have also noticed the scent of many of the tanning lotions go bad and no longer smell pleasant, so you would most likely want to replace it if the product doesn't smell as good as it should.
950616
oh honey, I never liked those things, even when they weren't expired!!! All that money, time, and effort, you're better off going to your dentist to have a whitening procedure done!\n\nYes, I would stop using them immediately! See if they go away before monday, and if not, make an appt. with your dentist ASAP. \n\nGood luck!\n\nSigh.. the things we do for beauty huh! :)
504083
I have taken it for two months straight (I have just stopped this month because my bf went abroad)- I have had no skin darkening whatsoever. Just do not expose yourself too much to sun if it is true. I have never heard about that before, and so far, yasmin went well for me. It's better than the other pill I have taken, although it is kinda expensive. I had lesser pimples too and did not particularly gain weight. Actually for me, my skin got better. If others have experienced otherwise, then I guess the effect depends from person to person.
734086
Well, certainly there are medications in which the active ingredient is a compound that degrades over time, making it less effective as time progresses. I do not know whether oxycodone is such a compound, or if it degrades enough to produce a significant impact on its efficiency.\n\nHowever, other factors may be at work here. It may be that your body chemistry initially had a high tolerance to the drug, but now that you've taken more of it your tolerance has dropped. Have you taken any of the last bottle's pills since you've tried the new bottle? Are they still as ineffective?\n\nIf so, another possibility other than the one you mentioned may be just that the first bottle contained a bad batch of the pills. By the way, those are highly addictive so be careful when using them. :)
1113985
Even the hightest SPF screen won't completely prevent UV rays from touching your skin. That's what tans you. The sunscreen is to help you stay in the sun longer without burning. It always needs to be reapplied every few hours. You'll tan if you're outdoors and exposed, believe me.
841750
There should be a 'best before' date on it somewhere, so check it out carefully. If there isn't you can e-mail the producer, give the product number and they will tell you if it has expired or not. That said, whey protein lasts a pretty long time. Was it unopened, or had it been partially used? If it was sealed, it might still be good, but if it had been opened it's been subject to oxidation, and might be a little rancid. It's hard to say, really, without knowing it's condition, but do check for that 'best before' number, because it should be on it somewhere.
647854
Use the lotions they have now with a small amount of self tanner in them. In about two weeks you'll have a really nice, even, natural looking cancer free tan that won't age you one bit. I use them and they work great. I don't do the lying out in the sun thing anymore. I'd rather be white as ghost and still look 25 when I'm 45 than worship the sun and look like a raisin by the time I'm 35.
228911
As far as the contacts go, there should be an expiration date printed on the package.  Most will keep unopened in their original packaging for a good 3-4 years.  Just make sure that once you open it that you clean and replace it according to your doctor's instructions.\n\nI'm not sure about the hair gel, but I think that as long as it still has the proper consistency, it shouldn't be harmful.