Other products can also be used to whiten plastic; The plastic of the glass will thus recover its previous whiteness.

If you prefer a gentler approach to monthly maintenance, your eyeglass frames will retain their newly acquired whiteness. This time you get another proven and very effective product in your pharmacy:     Marseille soap    .

Also read:    The ingenious trick to remove the white patina from bleached glass

Dissolve 50 grams of Marseille soap flakes in a quarter of a liter of water: ensure that it dissolves and, if necessary, heat the mixture a little in a saucepan. Then continue with the care you want and, above all, don’t forget to rinse and dry well.