Latest posts
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How to Fade Acne Marks: Red Marks, Brown Marks and Real Scars
Flat red marks (PIE) and flat brown marks (PIH) are color changes, not scars, and most fade on their own; shallow brown marks usually improve within 6 to 12 months. Daily broad-spectrum SPF 30+, no picking, and azelaic acid or a retinoid speed it up. Pits and raised bumps are true scars and need procedures.
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Post-Inflammatory Hyperpigmentation: How to Fade Dark Acne Marks
Post-inflammatory hyperpigmentation is extra pigment left after a breakout, not a scar, and it affects up to 65% of people with darker skin who have acne. Shallow brown PIH usually fades within 6 to 12 months; deep blue-grey pigment can take years. Daily SPF 30+ tinted with iron oxides, azelaic acid and topical retinoids have…
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Laser Treatment for Acne Scars: Ablative vs Non-Ablative
Fractional lasers soften indented acne scars rather than erase them. Ablative CO2 and erbium lasers give bigger changes with about 4 to 10 days of healing; non-ablative lasers need more sessions but little downtime. A Cochrane review found fractional lasers beat older non-fractional ones, with certainty from very low to moderate. Darker skin carries higher…
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Chemical Peels for Acne: Glycolic, Salicylic and TCA Compared
Superficial glycolic and salicylic acid peels modestly improve mild to moderate acne, and a systematic review of 12 randomized trials found the common agents similarly effective, though trial quality was very low to moderate. The 2024 AAD guideline found the evidence insufficient to recommend peels. Deep peels should be avoided in skin types IV to…
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Microneedling for Acne Scars: Evidence, Sessions and Risks
Microneedling produces real but modest improvement in indented acne scars, typically over 3 to 5 sessions spaced 2 to 4 weeks apart, with a few days to a week of redness. A 2022 meta-analysis of 12 trials found less hyperpigmentation than comparison treatments. Adding PRP roughly tripled the odds of an excellent result, on low-quality…
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Acne Scar Treatments: What Actually Works for Each Scar Type
The scar type decides the tool: TCA CROSS or punch techniques for ice pick scars, resurfacing with fractional lasers, peels or microneedling for boxcar scars, subcision or fillers for rolling scars, and steroid injections or lasers for raised scars. A Cochrane review of 24 trials found no treatment has evidence strong enough to be called…
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Pregnancy-Safe Acne Treatment: What’s Safer and What to Avoid
Azelaic acid, benzoyl peroxide and topical clindamycin or erythromycin are the acne treatments most often described as safer in pregnancy. Isotretinoin, topical retinoids including tretinoin and adapalene, tazarotene, spironolactone and oral tetracyclines are avoided; the AAD says to stop doxycycline, minocycline or tetracycline by the 15th week. Safer means low risk on limited data, not…
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Clascoterone (Winlevi) for Acne: How It Works and Trial Results
Clascoterone 1% cream (Winlevi) blocks androgen receptors in the skin, the first topical to do so, FDA-approved in August 2020 from age 12. In two phase 3 trials, 18.8% and 20.9% reached clear or almost-clear skin at 12 weeks versus 8.7% and 6.6% on vehicle. The 2024 AAD guideline recommends it conditionally, largely on cost.
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Tretinoin for Acne: Strengths, Evidence, and How to Start
Tretinoin is a prescription retinoid that unclogs pores and reduces inflamed spots. In 12-week label trials, microsphere gel cut total lesions by 32% to 45%, versus 8% to 23% with vehicle. Start with a thin layer at night, every other night, plus moisturizer and sunscreen. Early worsening is expected. Judge results at about 12 weeks.…
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Clindamycin for Acne: How It Works and Why It’s Never Used Alone
Topical clindamycin reduces the bacteria and inflammation behind red, inflamed pimples, and the 2024 AAD guideline strongly recommends topical antibiotics. It is never used alone because bacteria develop resistance. Both the AAD and NICE say to pair it with benzoyl peroxide, which kills acne bacteria without inducing resistance, or with tretinoin. NICE lists both fixed…