While MMA used in the medical and dental industries provides superior adhesion to bone, it is not appropriate or safe for use on the softer nail tissue. Respiratory problems and eye, nose and throat irritation. MMA vapors are toxic even in small doses and can cause lung, liver and heart valve damage, especially with long term exposure. This has been documented in laboratory animals as well as in lab technicians from dental labs where crowns and dentures are made. Wearing a mask does nothing to prevent inhalation of MMA fumes.
Masks only reduce the inhalation of acrylic dust.
The small molecular structure of MMA makes it possible for it to be absorbed through even unbroken skin. It can also actually do permanent damage to the matrix of the nail and further absorb into the body. While MMA will not store in the tissue, it is stored as methanol in the blood and urine. Redness, swelling and itching are common symptoms which can lead to the development of tiny blisters around the cuticles and fingertips. These blisters can develop into open sores, and the fingertips may become numb or feel itchy under the nail.