Hello,
I do not know the process and composition of these two substances. Can it be counted as a natural substance?
No, both ingredients are chemically synthesized.
I think it contains mostly natural ingredients
The individual ingredients are not related. Other ingredients are naturally occurring. It doesn't mean that these two ingredients are naturally occurring.
These two substances can be used in skin care products and claim to be natural skin care products or not
not possible. Or can only claim that some of the ingredients in the formula are naturally occurring. Some brands will choose to use the method. Claims in %, for example, 70% comes from nature. [calculated from the formula by counting only the natural ingredients list of the formula]