Medically reviewed by Dr Sin Yong · Last reviewed · 2 min read · Doctor-performed, never delegated
Scars, rosacea, acne, melasma, tattoos, telangiectasia and sagging skin — Dr Sin Yong uses targeted treatments for each condition.
The seven articles collected here date from 2021 and 2022 and cover acne flares, tattoo removal, melasma, subcision for acne scars, fine blood vessels, rosacea and sagging skin. Each has since been rebuilt as a full condition or treatment page with the same structure: what the condition is, how it is told apart from its lookalikes, what the evidence supports, and what Dr Sin Yong does after examining it. The order matters more than the device. Active acne is controlled before scars are treated; melasma is diagnosed before any laser is chosen, because pico laser does not treat its causes; redness is separated into vessels, rosacea and sun damage before a wavelength is picked; and sagging skin is assessed for laxity against volume loss before lifting energy is considered. The list below pairs each original topic with the page that now carries it, and ends with the condition library, where every skin, face, body and hair condition on the site is indexed.
These articles are part of a much larger resource: 50 in-depth, journal-referenced guides covering skin, face, body and hair conditions — each explaining the mechanism, the self-checks, and what evidence actually supports.
Browse all 50 condition guides →Medically reviewed by Dr Sin Yong, MBBS (NUS), MRCS (Edinburgh) · Last updated 20 October 2026 · Editorial policy