Microbiome & barrier-next
Galactomyces Ferment
also known as Galactomyces ferment filtrate
The iconic 'essence' ferment — a glow-and-tone booster that made lightweight essences famous.
What it is
Galactomyces ferment filtrate is the liquid produced when the galactomyces yeast ferments — a nutrient-rich broth of amino acids, vitamins, and minerals. It's the ingredient category that essentially defined the modern 'essence.'
What it actually does
Galactomyces hydrates, supports the skin barrier and its microbiome, and — thanks to its vitamin and antioxidant content — nudges skin toward a brighter, more refined, more even look over time. Fans report smaller-looking pores and a glassy glow with consistent use. It's a gentle, do-a-bit-of-everything ferment rather than a single-target active.
Why K-beauty uses it
This is the ferment behind the legendary 'first essence' format — a J-Beauty origin that K-Beauty ran with, making galactomyces essences a rite of passage. If someone tells you an essence changed their skin, odds are it was this.
Best for
- Dullness
- Uneven texture
- Glass-skin glow
Not ideal for
- Some fungal-acne-prone skin
Pairs well with
Routine placement
- Where it lives
- Essence · Toner · Serum
- AM/PM
- AM & PM
- Frequency
- Daily
How to use it
The essence step: press several layers into damp skin after cleansing/toning, morning and night, before serums.
The Plug verdict
Galactomyces is the OG glow essence for a reason — gentle, brightening, barrier-friendly. If you've never used a ferment essence, this is the one to try first.
Products featuring galactomyces ferment
17 productsEditorially picked products where galactomyces ferment is the hero — ranked by real value across authentic retailers.
SOME BY MI
Galactomyces Glutathione Daily Mask
from $21.17$22.59 · $0.71/ea
2 retailers
SOME BY MI
Galactomyces Glutathione Glow Serum Mask
from $1.67$2.38 · $1.67/pc
2 retailers
SOME BY MI
Galactomyces Pure Vitamin C Glow Serum
from $16.11$20.08 · $0.54/ml
4 retailers
SOME BY MI
Galactomyces Pure Vitamin C Glow Serum 2024 Version
from $15.04$16.02 · $0.50/ml
2 retailers
SOME BY MI
Galactomyces Glutathione Brightening Cream
from $21.00$21.50 · $0.53/ml
2 retailers
COSRX
Galactomyces 95 Tone Balancing Essence
from $15.95$19.05 · $0.16/ml
5 retailers
SOME BY MI
Galactomyces Glutathione Glow Milky Toner
from $15.80$17.90 · $0.08/ml
2 retailers
Cos De BAHA
Galactomyces Serum (GN)
$10.71 · $0.36/ml
Authentic · sourced via Stylevana
PRETTYSKIN
Galactomyces First Essence 14 Days
$9.59 · $0.06/ml
Authentic · sourced via Stylevana
One Thing
Galactomyces Ferment Filtrate
$28.80 · $0.19/ml
Authentic · sourced via Stylevana
mixsoon
Galactomyces Toner
$15.92 · $0.05/ml
Authentic · sourced via Stylevana
Trimay
- Papaya 4HA Galactomyces Peel & Pore Control
$15.95 · $0.08/ml
Authentic · sourced via Koreabe
PRETTYSKIN
Galactomyces First Essence Pad
$8.19 · $0.06/ml
Authentic · sourced via Stylevana
PRETTYSKIN
Galactomyces First Deep Cleansing Water
$5.41 · $0.01/ml
Authentic · sourced via Stylevana
mixsoon
Galactomyces Ferment Essence
from $22.00$13.60 · $1.10/ml
1 authentic retailer · more coming soon
mixsoon
Galactomyces Toner Pad - 60*2 pads
$16.90 · $8.45/pads
Authentic · sourced via Stylevana
PRETTYSKIN
Galactomyces First Deep Peeling Gel
$4.39 · $0.03/ml
Authentic · sourced via Stylevana
Products with galactomyces ferment
6 productsCos De BAHA
Galactomyces Serum (GN)
COSRX
Galactomyces 95 Tone Balancing Essence
Trimay
- Papaya 4HA Galactomyces Peel & Pore Control
mixsoon
Galactomyces Ferment Essence
mixsoon
Galactomyces Toner
mixsoon
Galactomyces Toner Pad - 60*2 pads
We match by ingredient mentions in product copy from our authentic retailers. If we missed a product you know contains galactomyces ferment, let us know.
Related ingredients
Microbiome & postbiotic complexes
aka Postbiotics, ferment filtrates, lysates
Barrier-first ingredients that feed and mimic the skin's own bacterial ecosystem — the frontier of K-Beauty's calming category.
Beginner-safe
Niacinamide
aka Vitamin B3
The all-rounder — evens tone, calms redness, and tightens the look of pores without irritation.
Beginner-safe
Rice Extract
aka Rice bran / rice ferment
The gentle glow-giver — mild brightening and comfy hydration in one very beginner-friendly package.
Beginner-safe