The Nova Clinic HCG patches are made from hypoallergenic adhesive, as in no latex. So the sticking material is not only good for any skin type but is not stuck on like a Band-Aid so ripping it off cause’s no irritation to the skin.
As the product is gentle there may be a time where the odd one will not stay stuck (very, very rare). But this is another reason why there are 12 in a monthly pack – so the client won’t run out.