No preservative, no toxicity and no additives,the fabric it self dry tissue. If you pour in dry tissue, you can make wet tissue Dry tissue is not at all harmful components, you can create and use secure 100% wet tissue if you pour water when you go out. Water separately! Tissue separately! End preservatives worry! All the elements of water to remove preservative wipes corruption. No residue after use baby skin Stress, No! Skin Pollution, Zero!