30. What causes green hair? - Nicotinamide + zinc works for HS - Colloidal oatmeal cream works for hand eczema - Visible and UV light and the skin, guest starring melasma - Remember episodes 21-29? We

• What causes green hair? [article]
• Nicotinamide + zinc works for HS [article]
• Colloidal oatmeal cream works for hand eczema [article]
• Visible and UV light and the skin, guest starring melasma [article]
• Remember episodes 21-29? We do! [archive]

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Luke and Michelle report no conflicts of interest.