Skincare 101
Does Shower Temperature Affect Pores? The Anatomy Says No
Shower temperature does not change pore size. Pores are not muscles; they have no sphincter to open or close. What hot water…
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Cold vs Warm Water for Acne: What the Cleansing Temperature Actually Does
For acne-prone skin, lukewarm water (around 30°C / 86°F) is the right answer. Hot water amplifies inflammatory acne by stripping lipids and…
Skincare 101
Best Shower Temperature for Glowing Skin: The 38°C Rule
The right shower temperature for skin is 36-38°C / 97-100°F — close to body temperature. Hotter than 40°C strips skin lipids and…
Hyperpigmentation
Dapsone, Azelaic Acid, Tranexamic Acid: Why Hydroquinone Is No Longer First-Line for SoC PIH
Hydroquinone has been the default first-line PIH treatment for thirty years. In 2026, three actives — dapsone, azelaic acid, tranexamic acid —…
Niacinamide
The Niacinamide Ceiling: Why 10% Serums Stop Helping Around 4%
Niacinamide blocks melanosome transfer from melanocytes to keratinocytes. It does not shut down melanogenesis itself. That mechanism puts a hard ceiling on…
Vitamin C
Vitamin C in Oily, Acne-Prone, Fitzpatrick V Skin: The Research Gap Nobody Mentions
Almost every published clinical trial on topical vitamin C used Fitzpatrick I-II patients. The extrapolation to oily, acne-prone, Fitzpatrick V skin doesn't…
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