Inquiry regarding acne scar skin regeneration

I frequently get skin trouble on my chin, whether it's folliculitis or acne, which has left me with hyperpigmentation and scars.

I feel very confused about choosing derma cosmetics while worrying about acne scar regeneration.

I am hesitant about lasers or procedures, so I am hoping to see improvement with cosmetics, but I am curious to know how much help they actually provide.

I would like to know what role Cica, retinoids, and peptides, which are commonly found on ingredient lists, play in scar improvement, and whether they are safe for sensitive skin.

In particular, can products that help restore the skin barrier and synthesize collagen bring about a tangible change in skin regeneration?

I am also concerned about the duration of use, a step-by-step routine, and the importance of concurrent sun protection for the results.

I would like to ask for advice on whether excessive exfoliation might actually worsen the damage, and if there are ways to promote skin regeneration through daily care.

Please recommend products related to derma cosmetics that can reliably support skin regeneration during pre- and post-procedure care.