Red Strains- Best choice for anxiety, relaxation and mild depression. With red strains, you tend to notice a calmness that gently creeps up on you; usually within an hour or so. It's effects also last a little longer than other strains. It's different for everyone, but five to ten hours is the norm.
White Strains- If you're looking for energy or pain relief, you will notice effects quickly with the white vein strains. Though intense, it doesn't last too long-roughly three to five hours-which makes it suitable if you want a quick boost or if you take it in late afternoon. It will get you through the busy portion of your day without keeping you up at night.