Boots No 7 Restore & Renew Face & Neck MULTI ACTION Serum, xxxLarge 50 mlxxx

I am trying to reduce wrinkles on neck & chest and also moisturize overnight. Do I use a night cream over the serum, or does that ruin the properties?

I can't seem to find a list of the ingredients.

Which product of No7 have retinol ?

Does it contain a SPF?