Do I need to stop smoking marijuana before my facelift? May I continue to take alpha lipoic acid up until the day of surgery?

Any kind of smoking would compromise healing in facelift surgery. Smoking Marijuana may increase bleeding during surgery. Please ask your doctor regarding herbal suppliments. 

Carbon monoxide is the flap killer even more than nicotine associated with conventional tobacco.  Cannabis smoking is a bad idea for that reason alone. Supplements are more often a risk than a benefit.  Stop them. This is wonderful opportunity to rejuvenate yourself. Don't complicate your surgery.