Will using a highly moisturizing body lotion consistently strengthen the skin barrier?

You can feel dry skin becoming much more hydrated when using a highly moisturizing body lotion, but when is it most effective to apply it?

I've heard that it absorbs best when applied right after a shower while the skin is still slightly damp, so I'm wondering if the moisturizing effect diminishes if I miss this timing. Also, I'm not sure what the appropriate amount is when applying a highly moisturizing body lotion.

I'm worried that if I apply too little, it won't be moisturizing enough, but if I apply too much, it might leave a sticky residue.

I am also curious whether highly moisturizing body lotion is effective only in winter or if it is good to use consistently throughout all four seasons.

I would like to know if the absorption or feel of highly moisturizing body lotion varies depending on skin type, and I am especially curious if there are any products that even sensitive skin can use with confidence.

Lastly, I am also curious if consistently using a highly moisturizing body lotion helps strengthen the skin barrier.