Numbuzin No. 9 Secret Firming Serum Tightens Jowls, Per Shoppers

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Others say it leaves skin “plump."

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Skin sags, pores stretch, and youthful radiance wanes with the passage of time (and, more specifically, the loss of collagen, which begins around age 25). That said, you needn’t sign up wholeheartedly for age-related complexion changes: Skin care products, like the Numbuzin No. 9 Secret Firming Serum, can visibly lift droopiness, tighten crepiness, and reinstate a youthful glow.

As with many Korean skin care finds I’ve stumbled upon, Numbuzin’s serum boasts ample acclaim from shoppers. Moreover, after dissecting its ingredient list, I wholeheartedly believe the hype is warranted.

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The Numbuzin No. 9 Secret Firming Serum is a milky, lightweight, and highly potent anti-aging solution for dull, sagging facial skin. Its primary power lies in lifting laxity; it does, however, offer additional benefits, including fewer wrinkles and a generally plumper, more hydrated complexion.

The magic lies, of course, in the formula’s active ingredients. As far as firming and lifting sagging skin, peptides—proteins that can signal the body to rev up collagen production—are the formula’s primary powerhouse. In fact, the serum boasts not one, but two peptide types.

Meanwhile, hyaluronic acid is responsible for the serum’s instant plumping effect. ICYMI: The moisture-magnetizing molecule delivers bounce by flooding skin with hydration. Moreover, its quenching qualities plump the appearance of fine lines (which appear more pronounced when skin lacks hydration).

Finally, adenosine—an anti-aging active found in many K-beauty products—doubles down on the formula’s lifting, firming effects. Studies have found adenosine encourages collagen production—and thus, tighter, plumper skin. Furthermore, the ingredient can reduce the appearance of wrinkles—particularly on the forehead, between the brows, and around the eyes.

Shopper reviews for this peptide-packed lifting serum are as impressive as the science behind its ingredients. A 49-year old reviewer said their lines, including crow’s feet, have “diminished,” their “face is firm and plump,” and they have “no more jowls” thanks to Numbuzin’s serum. Similarly, another shopper swore their “wrinkles are vanishing” after two weeks of use, while a final fan simply dubbed the serum “the one,” particularly for anyone seeking “firm” skin.

For younger-looking, lifted skin, shop the Numbuzin No. 9 Secret Firming Serum at Amazon—and consider similar firming solutions, below.

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