CuSkin anti-aging care

CuSkin's Vitamin U range pairs a concentrated serum with a matching cream, both built around the brand's signature ingredient: methyl methionine, also known as vitamin U. It's a sulphur-containing amino acid that gives this Korean duo its name and its focus on comfortable, well-nourished skin. The line is a good fit for thin, dry, dull or sensitive skin that's starting to show mature-looking texture.

What's in the set?

Two products that work as a layered routine. The serum delivers a lightweight first layer of moisture and active ingredients; the cream seals it in and adds a softer, more cushioned finish. Both have a light texture, spread easily, absorb quickly and don't leave a sticky film.

Key ingredients

• Methyl methionine (Vitamin U): the amino acid at the heart of the formula, chosen for its skin-conditioning feel.
• Syn-Ake (tripeptide, 4%): a peptide associated with a smoother, more relaxed look around expression lines.
• EGF: a peptide-type ingredient included to support a fresher, well-cared-for appearance.
• Adenosine & Oligopeptide-1, Acetylhexapeptide-8: conditioning agents that help skin look firmer and smoother.
• Polyglutamic acid & Hyaluronic acid: humectants that draw in and hold moisture, for a plumper, more hydrated look through the day.
• Vitamin C (sodium ascorbyl phosphate): an antioxidant that helps brighten the look of the complexion and even out the appearance of dark spots.
• Arbutin: often used to help skin look more even and luminous.
• Shea butter (in the cream): a rich emollient that softens and comforts dry, flaky-feeling skin.

The formulas also contain additional amino acids and plant extracts.

Who is it for?

If your skin feels dry, looks tired or dull, or you want a richer routine for mature-looking skin, this pair gives you hydration plus a brightening, smoothing finish. The light textures also make it workable for men and women who prefer fast-absorbing skincare.

How do you use it?

After cleansing and toning, apply a few drops of the Vitamin U serum to clean skin and pat in gently. Follow with the Vitamin U cream to lock in moisture. Use morning and evening, and pair with daily SPF in your daytime routine.