[Broken_Hippo]

You might not need to be careful.

I find it pretty disgusting that the products don't seem to contain the stuff they claim to contain. So avoid some products on this principle, certainly, and hope the others hold up to their ingredient list: Alternatively, an aloe plant will help a little or for sunburns, something with lidocaine if you aren't opposed to that will actually work (FDA drug label and all those protections with that variety).

However, it seems that the article mentions that a food additive seems to be the preferred substitute - it is likely that the products are safe, even if they weren't the aloe they were claiming. Furthermore, they probably work for immediate relief and moisturization (though possibly not in the healing bit found in some studies [1]). Unless you've skin sensitivities, buy away if whatever happens to be in the product meets your needs.

[1]https://umm.edu/health/medical/altmed/herb/aloe