Hi Joanned,
Thank you for posting on our forum! If you are sure to wash your child's hands after putting the handprints in the stone, there is almost no danger. Sometimes the mixture can dry out your skin, but this can be easily overcome with some ordinary moisturizer. So, just be sure to wash your own and your children's hands after using the cement mix and it should be fine. If you have any other questions or concerns, feel free to post them here or email us at
marketing@milestonesproducts.com.
Thanks again and enjoy making your stepping stone!!