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As of May 12, 2026, Glutathione Ampoule Serum is cheapest at Cupidrop for $14.70.
Glutathione is an antioxidant naturally found in the body that helps protect skin from environmental stress and supports a brighter, more even-looking complexion.
This ampoule serum combines 10,000 ppm glutathione with 50,000 ppm niacinamide to target dullness, dark spots, and uneven tone—think of it as your shortcut to that lit-from-within glow.
The lightweight formula absorbs quickly and layers easily into both morning and evening routines.
Suitable for all skin types, but especially helpful if you're dealing with dullness, dark spots, or uneven tone. Also great for anyone chasing that smooth, hydrated "glass skin" look.
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Yes — dropped in price once in the last 90 days, reaching $14.70 at Cupidrop on April 14, 2026.
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Find Glutathione Ampoule Serum on Alencia — currently available at one retailer. Set a free price alert and get notified the next time the price drops.