as Given a normalized Orlicz function M we provide an easy formula for a distribution such that, if X is a random variable distributed accordingly and X-1, ... ,X-n are independent copies of X, then 1/Cp parallel to x parallel to(M) <= E parallel to(x(i)X(i))(i=1)(n) parallel to(p) <= C-p parallel to x parallel to (M), where C-p is a positive constant depending only on p. In case p = 2 we need the function t bar right arrow tM'(t)-M(t) to be 2-concave and as an application immediately obtain an embedding of the corresponding Orlicz spaces into L-1{[}0,1]. We also provide a general result replacing the l(p)-norm by an arbitrary N-norm. This complements some deep results obtained by Gordon, Litvak, Schiitt, and Werner {[}Ann. Prob. 30 (2002)]. We also prove, in the spirit of that paper, a result which is of a simpler form and easier to apply. All results are true in the more general setting of Musielak-Orlicz spaces.