Ok now i have some multiple vitamins from GNC its a bottle w/pills that have 19 diff. vitamins in them. The biotin in it is 600 and i also have bought a bottel of just plain ol Biotin by itself which is also 600. I take the multiple vitamins 2 times a day and the biotin one time a day as it says on the box. So in total i am taking 1800, right? Well, I am readin about havgin 5k of the Biotin. Now should i skip this biotin i have now and get me the 5k biotin from GNC or should i take more biotin? I'm thinkin maybe the safest thing i could do is to just buy another Biotin. I could maybe give this other biotin to my mom or a friend. Now if i were to go this weekend and buy some more Biotin(or maybe if i can switch it w/the stronger biotin) how long should i wait to go and use the new stronger biotin? A week, few days? I'm thinkin a week at least would be good i've only been takin this bioton now for 4 days. Should i stop 2day so that my body can be ready for the new Biotin? But the other thing is, since i already have biotin in the multiple vitamins which is 600 and yall are sayin to have 5000 of it then i only need 4400 more. Hmm, ok some1 help me out here.