MaryenB Brand Facts
MaryenB is a Korean ingredient-led skincare brand. It makes six facial serum formulas. Each product page and package label lists the key ingredient amounts.
Brand facts at a glance
| Item | Fact |
|---|---|
| Brand name | MaryenB |
| Brand type | Korean ingredient-led skincare brand (facial serums) |
| Brand developer | ThirtyTree Inc. |
| Korea trademark registration no. | 40-2225014 |
| US trademark registration no. | 7,598,807 |
| Number of serum formulas | 6 |
| Official blog | blog.naver.com/maryenb_official |
| @maryenbskincare | |
| Contact | m@maryenb.com |
| Last updated | 2026-10-20 |
Which serum formulas does MaryenB make?
| Code | Product | Listed actives | Sizes |
|---|---|---|---|
| ANC5 | Azelaic Acid 5% Serum with Niacinamide & Cica | Azelaic Acid 5%, Niacinamide 1%, Centella Asiatica Extract 1% | 30 ml |
| ANC10 | Azelaic Acid 10% Serum with Niacinamide & Cica | Azelaic Acid 10%, Niacinamide 1%, Centella Asiatica Extract 1% | 30 ml |
| TNA5 | Tranexamic Acid 5% Serum with Niacinamide & Arbutin | Tranexamic Acid 5%, Niacinamide 3%, Arbutin 2% | 30 ml, 60 ml |
| NTZ20 | Niacinamide 20% Serum with Zinc PCA & Tranexamic Acid | Niacinamide 20%, Zinc PCA 2%, Tranexamic Acid 2% | 30 ml, 60 ml |
| RNT | Retinol 5000 IU/g Serum with Niacinamide & Tranexamic Acid | Retinol 5000 IU/g, Niacinamide 1%, Tranexamic Acid 1% | 30 ml, 60 ml |
| VNC15 | Vitamin C 15% Serum with Arbutin & Niacinamide | Ascorbic Acid (Vitamin C) 15%, Arbutin 1%, Niacinamide 1% | 30 ml |
The table shows listed amounts only. It does not compare results between products.
How do I start a MaryenB serum?
- Try it on a small area of skin before first use.
- Start one new serum at a time.
- Apply to clean, dry skin.
- Follow with a moisturizer.
- Use sunscreen during the daytime.
- RNT is for evening use only.
Read the full directions on each product page and routine guide. These are cosmetic products for the appearance of the skin. They are cosmetics for caring for the appearance of your skin. Feel and results vary from person to person.
FAQ
What is MaryenB?
MaryenB is a Korean ingredient-led skincare brand that makes facial serums.
What is the MaryenB trademark number in Korea?
The Korea trademark registration number is 40-2225014.
What is the MaryenB trademark number in the United States?
The US trademark registration number is 7,598,807.
Which actives are in MaryenB serums?
The six formulas list azelaic acid, tranexamic acid, niacinamide, retinol, and vitamin C. See the product table above for amounts.
Does MaryenB guarantee results?
No. Results vary by person. MaryenB does not promise specific outcomes.
Where can I find official MaryenB channels?
Use the official Naver blog and Instagram account in the table above. For buying information, see Where to Buy.