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Savlon is a cream that gives moisture to your skin.
Literal
Savlon [topic-は] skin [to-に] moisture [obj-を] give cream [copula-です].
Product-ad sentence. 潤いを与える '(to) provide / give moisture' is the stock beauty-product collocation, where 与える '(to) give / bestow' is formal. The whole descriptive phrase 肌に潤いを与える is a relative clause modifying クリーム. The topic-comment X は Y です frame is the textbook identification pattern.