Paula's Choice Retinol Skin-Smoothing Body Treatment, Shea Butter, Vitamin C & E Lotion, Anti-Aging Moisturizer, 4 Ounce

What is the percentage of retinol in this product please?

Could you add paula’s retinol booster product to this body lotion to up the retinol percentage strength for max results?

What is the smell or odor of this lotion?

I have beenusing it all over of my body. how long can i expect on bottle to last? my fist bottle was gone in one month. perhaps, i am using too much?