Dark Patches Around the Mouth Usually Aren’t Scars

Dark marks around the mouth that have been there for years are often mistaken for scars, but most of the time they’re actually hyperpigmentation. True scars usually change the texture of the skin. If the skin feels smooth and it’s just darker, you’re likely dealing with pigmentation.

That area is tricky because it darkens easily from sun exposure, irritation, or even old inflammation from childhood skin issues. Brightening serums sometimes don’t work because they’re too mild for deeper pigmentation.

In my experience, ingredients like tranexamic acid and tretinoin tend to make a bigger difference. Tranexamic acid helps calm pigment production, while tretinoin speeds up skin turnover so the darker cells fade faster. You don’t need both immediately, but either one used consistently can help over time.

Sun protection is honestly the most important part. The mouth and neck are areas people forget, and even small amounts of sun can keep pigmentation from fading. A good SPF used daily makes any brightening treatment work better.

Chemical exfoliation once or twice a week can also help if your skin tolerates it, because it gradually removes the darker surface layers.

One thing I’ve noticed is that people often throw five brightening products at pigmentation and see no change. Usually a simple routine with one strong active and consistent sunscreen works better.

Curious if anyone here has had better results with tranexamic acid or tretinoin for this area.