Mark, according to https:///watch?v=sRIh0n2X97g the alcohol in tinctures can alter the benefits sought by the herb, whereas the powder form contains the whole herb without alteration by the alcohol. That said, tinctures are good to quickly deliver the herbal medicine, say if trying to stop an asthma attack. Don’t know if Ashwagandha is better as a tincture or powder, but since you have the tincture already, use it. Suggest you also use google to see if there’s reliable info out there about which is better. I just spent 10 minutes doing so and found nothing conclusive. I use the powder and will stick w/ it unless I bump into info suggesting otherwise.