As ConfirmedAgnes said, the prophecy is from the private revelations to a beati (Bl. Anna Maria Taigi). Although the private revelations are approved due to the beatification of the seer, Catholics are not required to believe private revelations. Also, the actual revelation to Bl. Anna Maria is very short and does not contain all the stuff that others added to it later; the additions (by people such as Marie-Julie Jahenny) are not approved.
In any event, we don’t rely on holy water or beeswax candles or anything like that to “protect” us. God protects us if we need protecting. Holy water is a sacramental which is used in the manner that we use sacramentals, to help us pray and be close to God, not as a protective device. Blessed candles, beeswax or not, likewise are just a form of prayer.