A "good moisturiser" refers to a product that helps keep your skin hydrated and prevents dryness.
Sentences with «good moisturiser»
If the under eye area is on the drier side then you might need a really good moisturiser, as I believe, this one will look cakey otherwise. (thebeautymascot.com)
My skin is a bit dry, do I need good moisturiser at end if using this. (yesstyle.com)
Used on the face and body, it acts as a good moisturiser and has many purported benefits including protection from UV radiation from the sun. (tinandthyme.uk)