For my skin it makes a big difference, but everyone is different! If your skin isn't dry, or oily, or acne prone, you keep doing what works. I have combination skin, and I do a morning cleanser, then moisturizer with spf, which also helps a little bit of under eye concealer blend better. At night it's a cleanser then retinol. A cheaper moisturizer all over after a bath. For me, if I skip any of these things, I feel it.
Dill is such a great idea for this!