Persistent facial hyperpigmentation. Topicals, oral tranexamic acid, energy-based devices, and the cases where lasers make it worse.
What vitamin C does for skin, which form works (L-ascorbic acid vs derivatives), the best percentage and pH, and the formulation evidence behind the active.
What niacinamide does for skin, which percentage works (2%, 5%, 10%), and the RCT evidence behind dark spots, acne, aging, and the oral skin-cancer prevention trial.
Evidence-based guide to perioral hyperpigmentation: melasma vs depilatory PIH vs smoker's melanosis vs Laugier-Hunziker, FDA triple cream, azelaic acid, oral tranexamic…
An evidence-first guide to topical azelaic acid. Explains the differences between Azelex 20% and Finacea 15%, clinical timelines, pregnancy safety, and usage protocols.
Is hydroquinone banned? Learn why the FDA made OTC hydroquinone illegal via the 2020 CARES Act, approved prescription strengths, ochronosis risks, and evidence-backed…
Understand Hori's nevus and nevus of Ota. Learn why topicals fail, which Q-switched and picosecond laser protocols work, and how to manage PIH risk in skin of color.
IPL photofacial uses broad-spectrum light to treat sun damage, redness, and broken capillaries with minimal downtime. Best on Fitzpatrick I–III skin. Not for melasma or…
Tretinoin is prescription retinoic acid that works immediately. Retinol is an OTC ingredient your skin must convert first. How strength, speed, irritation, and evidence…
Melasma is chronic, recurrent, and resistant to quick fixes. This article walks through each treatment step — from SPF through lasers — explaining what works, what the…
Chemical peels treat hyperpigmentation and acne in Fitzpatrick IV-VI skin when acid type and concentration match melanin-rich skin. Mandelic and salicylic acid are…