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Purito Seoul

Galacto Niacin 97 Power Essence

$18·60 ml·~$32/mo to use

Reviewed by SerumTruth Editorial · Updated July 2026

One of the more honestly dosed essences in the K-beauty aisle: two ingredients, both disclosed, both at levels that mean something. The ferment evidence is limited and mostly brand-led, but the niacinamide half is doing real, well-evidenced work. A good value pick for a hydrating, tone-supporting layer.

SerumProof score75 / 100
  • Evidence17 / 30

    Strength of the research behind the key actives

    • Galactomyces Ferment Filtrate (Pitera): limited evidence
    • Niacinamide: moderate evidence

    The average of the key actives’ evidence grades.

  • Potency25 / 25

    Dosed at studied levels, not fairy-dusted

    • Galactomyces Ferment Filtrate (Pitera) (92%): dosed at a clinical, high-end level for its category
    • Niacinamide (5%): dosed at a clinical, high-end level for its category

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

  • Delivery & stability16 / 20

    Delivery tech + packaging that protects fragile actives

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

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

  • Formulation8 / 10

    Disclosure, active breadth, and ingredient generation

    • 2 of 2 actives disclose a concentration
    • 2 key actives (breadth credit caps at 3)
    • Current-generation or synergistic: Galactomyces Ferment Filtrate (Pitera)

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

  • Value9 / 15

    What a month of use costs vs. the category

    • About $32 per month to use
    • $18 for 60 ml, used about twice a day (about 1.75 ml each time), so a bottle lasts about 0.6 months

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

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What’s inside

ActiveDisclosedDose
Galactomyces Ferment Filtrate (Pitera)92%Clinical
Niacinamide5%Clinical

A two-ingredient essence, 92% galactomyces ferment filtrate plus 5% niacinamide, adding up to the "97" in the name, dispensed from an opaque pump bottle. Both numbers are brand-disclosed and both sit at genuinely high levels for their categories: 5% niacinamide is at the strong end of the studied range, and a 92% ferment base is about as concentrated as this ingredient gets. Because it carries no real preservative system beyond the essentials, Purito recommends refrigerating it after opening and using it up quickly. It is a hydrating, brightening-leaning first-essence step, not a treatment for texture or fine lines.

How it’s delivered

DeliveryStandardPackagingAirless, opaque

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

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.