Kratom extract tablets are concentrate from Mitragyna speciosa leaf, pressed into tablets and portioned in advance. The tablets here are from KR8OM, in green maeng da and red bali, and from Zion Herbals, whose Lucky 80 is a blend.
No. A capsule holds milled leaf. A tablet is pressed from extract, which is concentrated from the leaf.
No. Start with plain leaf powder or capsules and the suggested serving printed on the package.
On the lab tests page, listed by brand.