For her Christmas present, my mom in her 50s insists on 1 bottle each of:
For at least 10 years, she has sworn by SOTHYS Paris's youth serums that are very expensive. She alleges that without them, her skin dries, sags, and pales. Wrinkles are more obvious.
I don't understand the differences between these serums.
I'm not a dermatologist or scientist, and can't analyze the Active Ingredients listed on each serum's webpage.
But I'm skeptical, as this other post acknowledges only tretinoin that's effective.