/Couple of months ago, I started applying minoxidil + finasteride combination topical lotion 1 or 2 days a week, in addition on other 2 to 3 days I use minoxidil spray. I also take daily 0.5mg dutasteride. I am seeing grey hairs which I never had and I am close to 40 years. But my question is if this minoxidil + finasteride combination topical lotion is turning existing hairs into grey hair or it is rejuvenating almost dead hairs into grey hairs. Can someone please answer?