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Azelaic Acid vs Hydroquinone for Hyperpigmentation, Dark Spots and Melasma
Hydroquinone was the gold standard for dark spots, melasma, and hyperpigmentation for decades. Dermatologists prescribed it freely, patients trusted it, and nobody questioned it. Then the concerns started. A condition called ochronosis, where skin darkens permanently with…
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I’m Rayo Johnson
I’m a pharmacologist translating skincare science into routines that actually work Learn more about me
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