Look up the ArM5 p.130 Creo Corpus and p.148 Creo Mentem Guidelines: so it is glaringly obviously possible! But a Duration above Mom raises the spell's magnitude, and it can easily get a Ritual again because of this.
MuCo - often MuCo(An) - effects with lower base levels are often more useful for this kind of short time buffing, and also many other spells are better for this than CrMe and CrCo.