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Size: 1 oz / 30 ml Protocol’s Enzyme-Active Retinol Serum is a high-performance nightly treatment built to help smooth texture, refine tone, and support visible firmness over time. The formula is designed for consistent results with less guesswork, and packaged to help protect potency. A smart option when you want real renewal without a complicated routine. WHY WE LOVE IT Helps smooth texture and refine the look of uneven tone over time 0.1% retinal (retinaldehyde) for high-impact night renewal Easy to slot into a simple PM routine
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🇺🇸 Ship from USA · On Agora since 2026
$88.00