Psychedelics are available in powder form, capsules or liquid. The chemical structure differs per psychedelic, so the effects can also differ per type. Psychedelics have a hallucinogenic effect that can vary from person to person. However, a 'bad trip' is one of the negative side effects that psychedelics can have. It is therefore advisable to only take this when you are in the company of people you can trust.
Be aware of the risks and stay safe when using smartshop products. Always research the characteristics and effects of the product you want to use.