I have very prominent SCM muscles on the front of my neck. What are my options to smooth these out? (photo)

Thank you for your question. Your options would include surgical and non-surgical treatments. Perhaps you would be more comfortable starting with non-surgical injectables before moving towards a more permanent solution with surgery. I suggest that you move forward and consult with a board certified facial plastic surgeon to discuss your candidacy.
Best wishes,

Hi Ardenama,Don’t worry!  Skeletons don’t have muscles, so you don’t look “skeleton-like”!  In fact, you appear very fit, so congratulations on the success of your lifestyle.I recommend at most pursuing, as one contributor pointed out, make-up techniques for removing shadowing.  Botox, even if it did work, will cause muscle dysfunction.  And you’d have to have it repeated every 3 months at relatively large doses.  And I doubt you’d find any board-certified surgeon to surgically debulk the muscle; even if you did find someone to do this, there’d be a long recovery period healing and learning to the work with the residual muscle.Best wishes,Dr. Jay

I'm sorry that this answer might disappoint you, but there is no really good way to reduce the appearance of the SCM muscle surgically.  It is a very strong muscle and I have doubts about even Botox helping.  In most people, the SCM is camouflaged by surrounding fat but you likely don't want to get the area fatter just to improve camouflage.  I can't think of a way to help you.  Best of luck in your search!