。
This soap contains natural fragrances.
Literal
This soap [to-には] natural fragrances [subj-が] contained-[progressive-ている].
天然香料 'natural fragrances' is a compound of 天然 'natural' + 香料 'fragrance/flavoring agent.' 入っている uses the intransitive 入る 'to be inside' in its ~ている stative form — 'are inside / are contained.' A simple, factual product-description sentence.