With an increased focus on water-based glues, many are safer than ever. However, some contain formaldehyde, and other toxins may be present. Always check the label and follow the manufacturer’s advice. Contact with;skin won’t normally present problems, though it depends on your sensitivity. Even nontoxic formulas can be difficult to remove, which is why you should always;wear gloves. As with any chemical, avoid getting the glue in your eyes (safety glasses are always a good idea when working in the shop anyway), and keep the glue out of reach of children.