All of our BioShot bb's are biodegradable and contain no toxic or caustic ingredients. Even so we strongly suggest not putting BioShot bb's into your mouth for they can be a choking hazard. Keep them away from small children and adult supervision is required for persons under the age of 18. ALWAYS wear proper eye, ear and face protection while playing the sport of Airsoft. Failure to do so can lead to major bodily damage, hearing loss or even damage to your vision. It is always good practice to keep your eye protection on even if you are not directly in an Airsoft game. A stray Airsoft bb not intended for you can still find its way to your eye. Just remember, Play smart... play safe! Oh, and always use BioShot BB's!