u/Beneficial-Smoke-257

I am 20 years old and I have been lifting consistently since I was 13-14. My plan is to start a cycle of S4 at 25mg a day just to dip my toes in the water. My only concern is whether this will speed up growth plate closure. I've heard that the clavicles don't usually fuse until around 25 so I would hate for them to close prematurely. Does anyone know if one cycle is likely to significantly speed up this process?