I have been using skinbio products for nearly a year and am really satified with the result, although the improvement is slow but progressive

I'd like to order skinbio and share this great skincare line to my sister. She's 40+, with very dry skin, slightly sensitive some wrinkles around mouth and forehead, without much sign of sagging or loose skin. Which of below will be better product combo and regime?

1. Day Cover (am) & Lactic 10/Lacsal Cream+ Emu Oil (pm)
2. P&R High Retionl + Day Cover (am) & Lactic 10/Lacsal Cream + Em Oil (pm)

* I wonder if Day Cover as the only source of copper peptides (1) is sufficient for wrinkle reduction.
* P&R High Retinol is said to be good for very dry skin but will it be too strong for slightly sensitive skin to start with? And can it be used in the morning? (any modification of the regime?)
* Or should she just start with (1) and then progress to (2)?
* Or any other product recommendation instead? such as super GHK cream or Skin Signals Cream?

Thanks for the advice!

Use method number 2. The retinol and CPs helps put oil in dry skin.

She might use GHK cream lightly around her eyes.

Later, she can try Skin Signals Cream.