If he had autism he wouldn't be very social, but very shy. I don't think flapping his arms is a sign of autism, but if you're concerned about it, ask a neurologist about it, or his doctor, either way. :) â¥ Cute T â¥ Â· 9 years ago.
If it weren't for food preservatives, we couldn't enjoy many of the great foods the world has to offer. Common antimicrobial preservatives include sodium nitrate, calcium propionate, disodium EDTA, potassium sorbate, sodium benzoate, and sulfites.
Preservatives. 1  The second most common cause of contact dermatitis. 2  Cosmetics that contain water have a preservative in them to prevent bacterial or fungal growth. 3  Some of the preservatives most commonly found in cosmetics include: Parabens â used in many facial cosmetics and skin care products.