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Innisfree

Green Tea Seed Hyaluronic Serum

$30·80 ml·~$7/mo to use

Reviewed by SerumTruth Editorial · Price and formula checked July 2026

A likeable, hydration-first update of a long-running favorite, with niacinamide dosed high enough to matter and a genuine if unevenly weighted hyaluronic acid complex. The green tea itself is a pleasant, limited-evidence antioxidant layer rather than a treatment active, so buy it for the glow and the barrier support, not for correction.

What we like
  • Cheap to use, about $7 a month
Watch-outs
  • No active concentrations are disclosed
SerumProof score71 / 100
  • Evidence18 / 30

    Strength of the research behind the key actives

    • Niacinamide: moderate evidence
    • Hyaluronic Acid: moderate evidence
    • Rice Extract (Rice Bran Water / Ferment): limited evidence

    The average of the key actives’ evidence grades.

  • Potency21 / 25

    Dosed at studied levels, not fairy-dusted

    • Niacinamide: dosed at a studied level
    • Hyaluronic Acid: dosed at a studied level
    • Rice Extract (Rice Bran Water / Ferment): dosed at a studied level

    How strongly the actives are dosed, led by the strongest, not how many there are.

  • Delivery & stability14 / 20

    Delivery tech + packaging that protects fragile actives

    • Delivery: standard
    • Packaging: tinted glass
    • No fragile actives here, so packaging barely moves the score.

    Delivery tech plus packaging, and packaging only counts when actives are fragile.

  • Formulation3 / 10

    Disclosure, active breadth, and ingredient generation

    • 0 of 3 actives disclose a concentration
    • 3 key actives (breadth credit caps at 3)
    • Current-generation or synergistic: Rice Extract (Rice Bran Water / Ferment)

    Disclosure, active breadth, and current-generation or synergistic actives.

  • Value15 / 15

    What a month of use costs vs. the category

    • About $7 per month to use
    • $30 for 80 ml, used about twice a day (about 0.3 ml each time), so a bottle lasts about 4.4 months

    What a month of use costs: full marks at $6 a month or less, the floor at $60 a month or more.

Tap any row to see how its score was built.

Ranks #40 of 56 brightening serums we have scored.

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What’s inside

ActiveDisclosedDose
Niacinamiden/aStudied
Hyaluronic Acidn/aStudied
Rice Extract (Rice Bran Water / Ferment)n/aStudied

A reformulated update of the original Green Tea Seed Serum, built on green tea leaf extract and seed oil (Camellia Sinensis) with niacinamide placed high on the label and a multi-weight hyaluronic acid complex the brand calls part of its Green Tea Tri-biotics blend. Sodium hyaluronate and hyaluronic acid sit around the midpoint of a roughly 45-ingredient list, a real if modest inclusion, but the extra hydrolyzed, crosspolymer and acetylated HA forms behind the "5x more absorbent, encapsulated" claim sit dead last on the label, a classic fairy-dust position. It ships in a green-tinted, part-recycled glass pump bottle with a refill pouch option.

How it’s delivered

DeliveryStandardPackagingTinted glass

Air- and light-sensitive actives (vitamin C, copper peptides) lose potency fast in the wrong packaging, so delivery and the bottle are scored, not just what’s on the label.

The actives, explained

What the research says

Topical 5% niacinamide was linked to more even looking skin tone, softer looking lines, and less visible blotchiness after 12 weeks.

Niacinamide: A B vitamin that improves aging facial skin appearance. Dermatologic Surgery, 2005. PubMed ↗

A multicenter study linked a topical hyaluronic acid serum with better looking hydration, tone, and texture over several follow up visits.

Multicenter evaluation of a topical hyaluronic acid serum. Journal of Cosmetic Dermatology, 2022. PubMed ↗

A study of the active, not this exact product. What matters for the score is whether this serum uses it at a comparable dose.

Higher-scoring alternatives

Same category, better SerumProof score. Worth a look before you buy.

Revision history
  1. July 11, 2026
    Price and formula rechecked
  2. July 10, 2026
    Review published

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Cosmetic information for general education, not medical advice. The SerumProof score reflects our reading of publicly available research and formulation disclosures. See how scoring works.