Natural product s are more stable as solids but degrade more readily in solution. The rate of degradation depends on the nature of the natural product and its sensitivity to heat , light ...etc.

Because of trace solvents, natural product wont degrade much. But because of light and oxygen most case yes.

The solid state material is more tribal to withstand changes and is more resistant to pollution if kept away from heat and light changes

Hello Deepak Shilkar ,

The natural product fractions should always be dried and stored in a solid form in the fridge to make the substance more stable and less prone to degradation.