I have tried quite a few of Simples moisturisers and I always come back to this one (And the Hydrating Light version too.)

PH Balanced to 'help skin maintain it's natural balance' - it has Active Ingredients of Pro Vitamin B5 and UV Filters and promises to keep the skin moisturised for 12 hours.

In terms of 'rich-ness' it falls somewhere in the middle, (of all moisturisers I have tried) which is always a plus for me since I do not like the texture or the greasy film that some thick moisturisers tend to leave on the skin. 'Replenising Rich Moisturiser' is just right - A creamy, yet still fluid texture that sinks into the skin relatively fast and leaves the skin cushioney soft and cooled.
I apply with clean fingers in circular motions to the face and neck after cleansing.

I rarely use this in the mornings as, although it is absorbed by the skin in around ten minutes, I'm usually in a rush to get my makeup applied and therefore don't have the time to wait!
That said, it works very well at night times - I do not wake up feeling greasy or oily, only smooth and soft :-)
(The 'Hydrating Light Moisturiser' is a good choice for mornings as it absorbs much quicker.)

Overall, I love this moisturiser and will continue to use it every night, without fail for the foreseeable future. At £3.28 for 125ml it is great value for money too!