CareFRESH Natural: Original CareFRESH is the one that started it all ?the first pet bedding made from virgin reclaimed cellulose. You'll love original CareFRESH because it's absorbent and controls odour. It's also all natural and biodegradable. The CareFRESH formula is free from contaminants like pine or cedar oils, so it is safe for your small pet. (Aromatic oils in pine and cedar bedding have been shown to have adverse health effects on small pets.) Plus it provides a more natural living environment promoting instinctive burrowing and nesting behaviours of small pets.