Although it can be tough to be allergic to makeup product, the makeup industry these days are expanding greatly, and making their makeup products useable to many different skin types and needs. Most of the more popular brands such as Loreal, Covergirl, and Mabeline offer hypoallergenic options of eye makeup suitable for your skin needs.
Avon or cover girl
Unfortunately the Matrix Biolage brand does NOT offer a completely hypoallergenic shampoo. However if that is specific to your needs, maybe try the hypoallergenic shampoos from Sephora or Phyto. Good luck!
Some yes, some no. Depending on the brand you get, there can be some that are and some that aren't waterproof.
Try a waterproof brand.
Some types of air beds (such as the ones used for camping) are waterproof. Intex is a brand that carries a lot of waterproof air beds.
Targus and Packard offer great waterproof camera bags for very low prices.
There are a lot of great waterproof digital cameras available. A great mid range priced model would be the Nikon Coolpix Waterproof.
Nikon and Olympus offer several very good waterproof cameras. Other brands that make good waterproof cameras that are worth mentioning are Panasonic and Sony.
Caters makes very soft and hypoallergenic linens for children.
guinea pigs have sensitive skin, you should ask your vet for a safe brand or buy a hypoallergenic brand (usually is not scented).
Depending on the brand. Check the information on the wrapper and it should tell you how long it will last. In my own experience, I normally don't use the same eyelash extension because it may carry contamination that can cause infection to the eye.
Everyone's allergies differ and one person may have a reaction to a brand that another person may not. Make sure the topper you select is certified hypoallergenic. If you're still worried, select a well known name brand in which you will have an easier time making a return. There really is no "best" answer, but rather which style and brand works best for you. As per usual, it's simply trial and error.