Brand Story | MaryenB Korean Ingredient-Led Skincare

Brand Story

MaryenB is a Korean ingredient-led skincare brand developed by ThirtyTree Inc. (formerly Iso Lab. Inc.) in South Korea. We build focused facial serums around a small number of well-known skincare ingredients, and we keep ingredient information clear so you can choose a formula that fits your routine.

Ingredient-led skincare

MaryenB is built around clearly identified key ingredients. Our line currently covers six serum formulas, including azelaic acid, tranexamic acid, niacinamide, retinol, and vitamin C serums. Each formula pairs a primary active with supporting ingredients, and key ingredient levels are listed on the product page and the package label.

Ingredient transparency

We list the key ingredient concentrations and a full ingredient list for each formula. Check the product page and package label before choosing a serum.

How we describe our products

Our descriptions explain what an ingredient is and how a serum is used. They do not promise specific outcomes, and individual results vary. For guidance on a particular product, check its official page and package label.

Questions about the brand or our formulas? Email us at m@maryenb.com.