Mollygo
I googled this.
Best Skincare Ingredients for Mouth lines
Retinol or Retinal: These vitamin A derivatives speed up cell turnover and boost collagen production to fade deeper lines over time. Apply this only at night.
Hyaluronic Acid: This powerful humectant draws moisture into the skin, instantly plumping up fine lines and making them less noticeable.
Peptides: Look for formulas with copper peptides or Matrixyl, which act as building blocks to firm sagging skin around the lips.
Vitamin C: A morning antioxidant that protects skin from sun damage while supporting natural collagen synthesis.
The only one I’ve tried is Hyaluronic Acid.
I think it works because I feel better, but I haven had anyone comment on the results.
Mind you, no one ever commented about lines before I started. So either they’re less noticeable than I think, or people I know are too polite to mention them.
I’ve tried them all over the past 15 years. None of them work. The hyaluronic acid, as you say, is a good moisturiser but nothing else.