Hey Karla,
Hahaha....my folks like to buy me DVD's about animals and reptiles, but they forget I've got Foxtel and I've usually seen (or have already bought myself) the programs which they buy me, but you gotta love them for caring enough to buy you the goodies.
I'm assuming those Repti - xxxxxx products are from Aristopet? (I hope I'm allowed to mention the brand on the forum? My apologies to the mods if I'm not meant to.)
1. Unless your soon to be purchased Beardies have worms, mites or ticks, then the wormer & guard will not be something you'll be needing right away. They are probably good to have around in case you need it in the future but check to see if they expiry dates. (Fingers crossed you'll never need them though.) I've got to say I've never personally used them before - touch wood never had to, but I do know Aristopet have a pretty good reputation and make good products so you shouldn't have too much to worry about IMO.
2. I've used Repti-Klean before to disinfect and clean the inside of my enclosures and it seems to work fine, although I have switched over to F-10 and have been using F-10 for some time now. Got nothing bad to say about Repti-Klean though except it does have quite a strong disinfectant smell so make sure you air your enclosure and let it dry completely before putting your Beardie back in. Works quite well and did the job when I used to use it to clean my Beardies' enclosures.
3. As for Zilla's Calcium suppliment spray, again, comes in handy to use in your Beardies' water or spray onto their veges for extra calcium. Can't hurt your Beardies if used as instructed. I don't tend to use liquid sprays as I dust my crickets with Calcium + D3 powder twice a week and once a week, I use a multi-vitamin powder as well. As kong as you provide your Beardies with a variety of insects plus plenty of fresh vegetables either dusted or sprayed with calcium, your Beardies should do well.
So to answer your question I guess, no, none of what your parents bought you can harm your Beardies as they are all relatively safe products to use.
Hope that helps!
Cheers.
