Nightingale reports positive sales performance for its C Toning Sleeping Mask on Amazon in the United States, as K beauty routines focused on overnight glow, gentle exfoliation, and barrier support gain attention among adults with different skin types.

South Korea, December 3, 2025 -- Nightingale, a Korean K beauty brand centered on clinically guided gentle care, reports continued demand for its C Toning Sleeping Mask on Amazon in the United States. The overnight mask is developed for adults seeking moisturized and visibly brighter looking skin and is formulated to be suitable for sensitive skin.

The C Toning Sleeping Mask combines sea buckthorn extract rich in vitamins C, E, and A with niacinamide to support a more even looking skin tone and a healthy glow. Natural forms of AHA, BHA, and PHA provide mild exfoliation to refine texture and help balance excess oil during the night, while hyaluronic acid and squalane supply hydration. Panthenol, betaine, and allantoin contribute to barrier support and help maintain comfort for skin exposed to daily environmental stress.

The formula is described as hypoallergenic, unscented, and tested for use on sensitive skin. It is free from alcohol, fragrance, parabens, sulfates, and animal testing and uses ingredients that meet EWG green standards. Packaging uses soybean oil ink, reflecting an additional focus on environmental considerations alongside skin care performance.

Nightingale regards the performance of C Toning Sleeping Mask as a sign of ongoing interest in Korean overnight masks that combine vitamin care, gentle exfoliation, and hydration on major ecommerce platforms. The brand plans to continue tracking customer feedback and to consider additional glow oriented and barrier focused launches for international markets.

For more information about Nightingale and C Toning Sleeping Mask, readers can visit the product page on Amazon in the United States at https://a.co/d/eHKAVHo.

About Nightingale

Nightingale is a Korean K beauty brand that develops skin care products with an emphasis on visible results and sensitive skin compatibility. Using ingredients such as vitamins, gentle acids, hyaluronic acid, and barrier supporting agents, the brand focuses on simple routines that address concerns such as uneven tone, dryness, and texture, and offers its products through online channels including Amazon in the United States.

Contact Info:
Name: Ryan Kim
Email: Send Email
Organization: Nightingale
Website: https://a.co/d/eHKAVHo

Release ID: 89177426

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