There are many Korean moisturizers that claim to be suitable for oily and acne-prone skin, but not all of them are effective or gentle enough. Based on the web search results, some of the best Korean moisturizers for oily acne prone skin are:

iUNIK Centella Calming Gel Cream:

This is a lightweight gel cream that contains 70% centella asiatica leaf water, a soothing and healing ingredient that helps calm inflammation and redness. It also has tea tree oil, which has antibacterial and anti-inflammatory properties that help prevent and treat acne. This cream is vegan, cruelty-free, and free of parabens, artificial fragrances, and mineral oil.

COSRX Oil-Free Ultra-Moisturizing Lotion with Birch Sap:

This is an oil-free lotion that hydrates the skin with 70.8% birch sap, a natural ingredient that balances oil production and helps heal acne scars. It also has panthenol, allantoin, and sodium hyaluronate, which moisturize and soothe the skin. This lotion is suitable for sensitive, oily, and acne-prone skin types.

Some By Mi AHA BHA PHA Miracle Cream:

This is a gel-cream that contains a combination of AHA, BHA, and PHA, which are chemical exfoliants that help remove dead skin cells, unclog pores, and improve skin texture and tone. It also has niacinamide, which brightens the skin and regulates sebum production, and centella asiatica extract, which heals and protects the skin. This creamy is designed to improve the skin in 30 days and is free of artificial colors, fragrances, and alcohol.

These are just some of the Korean moisturizers that are recommended for oily and acne-prone skin. You can find more options and reviews on the web search results page. I hope this helps you find the best moisturizer for your skin. 😊