When you say that you have significant laxity in the cheeks, there is nothing like properly done surgery to improve the situation. Sometimes, when the laxity is less severe, volume enhancement with injectable fillers or fat injections can tighten the skin and lift it a bit. Lasers and medical grade skin care can also add a sense of tightening to the lax skin. Combinations of these treatments are sometimes prescribed to maximize the benefits.
Consult with an excellent plastic surgeon who can do all of the procedures so you can find out which will give you the result you want. Remember that if the doctor you see can't do all of the procedures, they might just recommend the ones which they can do and this won't be in your very best interest.
