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Monte Carlo simulations are exploited to assess the annual radiation doses from some cosmetics due to the radioactive decay series of 238U and 232Th and to the radionuclide 40K. The measured radioactivity concentrations are entered into simulation codes modeled and implemented by Monte Carlo n-particle software. The concentrations are found to be relatively high for a large number of the samples. The Monte Carlo-simulated gamma-radiation annual doses are compared with the results of another theoretical approach. Both methods are in good agreement with each other and predict low doses from use of cosmetics.