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Anua HEARTLEAF 77 B3ZINC SOOTHING SERUM

Ingredients and claims, checked

Product photo of Anua HEARTLEAF 77 B3ZINC SOOTHING SERUM

Last checked September 30, 2026

Mid-range for serums

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What is it like at a glance?

What the ingredients do

Hydration leads, with 5 of 31 ingredients. It also contains Niacinamide.

Hydration
5
Skin protection
2
Moisture seal
1
Brightening
1

Worth knowing

  • Has a fungal-acne trigger

Made for

What is this product?

What to expect
It's registered in Korea as a functional cosmetic for brightening.
Key ingredients
Niacinamide 5%, Zinc PCA 1%, Houttuynia Cordata Water 77%
When
Morning and evening

A serum made with niacinamide. It spreads on thinly. It comes in a 30 ml size.

Who is it for?

Less suited to

  • Skin that doesn't get along with acids (AHA, BHA)

What's good, and what to watch for?

Good points

  • Contains Niacinamide 5%, Zinc PCA 1%
  • Registered as a brightening functional cosmetic
  • Panthenol adds moisture

Watch-outs

  • If you get fungal acne: Sphingomonas Ferment Extract

What makes it different?

It contains zinc, a sebum-control ingredient.

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Tap a name to read about that ingredient.

This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary, except 1 with no dictionary entry, left in Korean.

Key ingredientWorth a closer look

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

What the claims add up to

You can expect:
less visible dark spots
Only partly backed:
calmer skin · clearer-looking skin · less shine · a smoother skin texture
Tests passed:
hypoallergenic · non-comedogenic · skin irritation
See each claim, checked (39)

Claims, checked

  • Niacinamide (B3) 5%backed by evidence
  • Zinc 1%backed by evidence
  • Whitening functional cosmeticsbacked by evidence
  • Excess sebum careplausible, not tested
  • Skin barrier and marks** careplausible, not tested
  • Lightly absorbed, fresh and moist serum textureplausible, not tested
  • 99.3% soothing of trouble* skin in just 2 weekspartly backed
  • The amazing effect of the trouble* serum, proven by satisfaction!partly backed
  • Skin absorption improved by 167.5%!partly backed
  • Soothing of skin irritated by towel friction (after 1 use)** 70.9%partly backed
  • Soothing of skin irritated by pillow friction (after 1 use)** 45.2%partly backed
  • Soothing of skin irritated by shaving irritation (after 1 use)*** 57.4%partly backed
  • 99,100 ppm B3Zinc™ COMPLEXpartly backed
  • Low-irritation care of dead skin cells and skin texture refinementpartly backed
  • Inner sebum (whitehead) reductionpartly backed
  • Surface sebum (blackhead) reductionpartly backed
  • Improvement effect on soothing irritated skin*partly backed
  • Skin pore area improvement**partly backed
  • Improvement of skin barrier damaged by physical irritationpartly backed
  • Skin blemish (pigmentation) improvementpartly backed
  • Skin oil improvementpartly backed
  • Skin moisture improvementpartly backed
  • Skin irritation test completed on sensitive skinpartly backed
  • Low-irritation skin test completedpartly backed
  • Test for suitability on acne-prone skin completed (non-comedogenic)partly backed
  • 24% soothing synergy!partly backed
  • Inner moisturization UP 3.13 timespartly backed
  • 68.6% higher absorptionpartly backed
  • Soothing effect that penetrates deep* into the skin with Houttuynia cordata exosome1)!overstated
  • Active ingredients delivered fast and deep* into the skin — not lingering on the surface, the difference of true absorptionoverstated
  • Afternoon greasiness OUT!* Sebum amount -28.8% decrease**overstated
  • 86.9% moisture soothing + moisturizing ingredients**overstated
  • Breaking the vicious cycle of trouble*no supporting source found
  • A soothing coverage area wider than before!no supporting source found
  • Skin soothing effect that gets better and better the more you use itno supporting source found
  • Just 1 use improves soothing of reddened* skinno supporting source found
  • Skin texture improvement effect -5.2%no supporting source found
  • A serum that cares for recurring trouble*nothing specific to check
  • Key soothing care ingredientsnothing specific to check

We quote each claim exactly as the brand published it, then check it against the ingredient list and the brand's own documents.

How we check claims

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