Compare MaryenB Serums

Start with one main skin concern, then compare the formula and its use instructions. MaryenB has six serum formulas: ANC5, ANC10, TNA5, NTZ20, RNT, and VNC15. A higher listed percentage is not a promise of better results or a better fit for your skin.

Six formulas at a glance

Listed ingredients and cosmetic appearance goals
Formula Listed key ingredients Appearance focus Introduction
ANC5 — Azelaic Acid 5% Serum with Niacinamide & Cica Azelaic Acid 5%; Niacinamide 1%; Centella Asiatica Extract 1% uneven-looking tone, visible redness, and uneven texture Introduce 2–3 times per week. Use sunscreen during the daytime.
ANC10 — Azelaic Acid 10% Serum with Niacinamide & Cica Azelaic Acid 10%; Niacinamide 1%; Centella Asiatica Extract 1% uneven-looking tone, visible redness, and uneven texture Introduce 2–3 times per week. Use sunscreen during the daytime.
TNA5 — Tranexamic Acid 5% Serum with Niacinamide & Arbutin Tranexamic Acid 5%; Niacinamide 3%; Arbutin 2% dark spots, uneven-looking tone, and dull-looking skin Start once daily and adjust only while skin stays comfortable. Use sunscreen during the daytime.
NTZ20 — Niacinamide 20% Serum with Zinc PCA & Tranexamic Acid Niacinamide 20%; Zinc PCA 2%; Tranexamic Acid 2% excess oil, visible pores, and uneven-looking tone Start once daily or 2–3 times per week and build up only while skin stays comfortable. Use sunscreen during the daytime.
RNT — Retinol 5000 IU/g Serum with Niacinamide & Tranexamic Acid Retinol 5000 IU/g; Niacinamide 1%; Tranexamic Acid 1% fine lines and uneven-looking texture Evening only. Start 2–3 nights per week. Use broad-spectrum sunscreen every morning.
VNC15 — Vitamin C 15% Serum with Arbutin & Niacinamide Ascorbic Acid (Vitamin C) 15%; Arbutin 1%; Niacinamide 1% dull-looking skin and uneven-looking tone Start once daily in the morning or evening and adjust only while skin stays comfortable. Use sunscreen during the daytime.

Texture, timing, sizes, and precautions

Descriptions and size options below come from the supplied product information. They are not independent texture tests. Confirm the current label and selected variant on the product page; separate listings are not separate formulas.

Formula descriptions and routine considerations
Formula Description Use timing Listed bottle sizes Key precaution
ANC5 Light, water-based serum Follow the current label 1 Fl Oz Start gradually; lower percentage does not guarantee gentleness.
ANC10 Light, water-based serum Follow the current label 1 Fl Oz Start gradually; higher percentage does not guarantee better results.
TNA5 Light, water-based serum Follow the current label 1 Fl Oz / 2 Fl Oz Introduce one active at a time; daytime sunscreen.
NTZ20 Light, water-based serum Follow the current label 1 Fl Oz / 2 Fl Oz Niacinamide 20%; increase only while skin stays comfortable.
RNT Texture not specified in the supplied product copy Evening only 1 Fl Oz / 2 Fl Oz Do not use during pregnancy or nursing, or while planning pregnancy.
VNC15 Water-based serum Morning or evening 1 Fl Oz Use daytime sunscreen; discontinue if irritation occurs.

Compare without stacking

ANC5 and ANC10 list different azelaic acid levels, but the lower percentage does not guarantee a milder experience. NTZ20 lists niacinamide at 20%, so introduce it gradually. RNT is an evening-only option; keep its retinol unit as 5000 IU/g rather than converting it to a percentage.

Choose one serum to introduce, not a six-serum routine. Formula codes identify different ingredient combinations; product listings and bottle sizes are not additional formulas. Some existing listings offer more than one size. Check the selected variant on the product page.

RNT is not for use during pregnancy or nursing, or while planning pregnancy.

Keep skin comfort first

Try it on a small area of skin before first use. Introduce one new serum at a time and keep the rest of your routine simple. Apply to clean, dry skin, then follow with a moisturizer. Use sunscreen during the daytime. Avoid contact with eyes. If your skin feels uncomfortable, stop using it. Do not use an active serum on irritated or compromised skin.

MaryenB products are cosmetics for caring for the appearance of your skin. Feel and results vary from person to person. Results and tolerance vary. Follow the current product label.

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