Do waxing or epilation prevent fasting?
Epilating hair does not invalidate fasting no matter which method is used. Because fasting is invalidated by eating, drinking and having sexual intercourse. Epilating hair or having someone do it does not invalidate fasting because these do not fall within the scope of things that invalidate fasting.
Here, it should also be noted that the parts of a woman’s body that need to be covered against men is her whole body except the hands, feet and face. The parts of a woman’s body that need to be covered (awrah) against women is between the navel and knees. It is not permissible to show these parts to women and men unless there is an obligation or necessity. In this regard, it is not halal for those who want to have waxing or laser epilation, to show to a stranger, man or woman, the parts of their body that must be covered and it is not halal either for the one performing waxing or laser epilation to look at or touch these parts (Marghinani al-Hidayah, VII, 187,194-195).
Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWAS,