Ga
Galactomyces Ferment Filtrate
Galactomyces Ferment FiltrateHydrator
The liquid left after fermenting a yeast, used in essences. Brand-run studies with no comparison group found more skin moisture.
What it does
It’s the liquid left after fermenting a yeast, and it’s in essences such as SK-II’s. Its evidence is thinner than for niacinamide or vitamin C.
The evidence, graded
moderateMiyamoto et al. (2023): all 86 women applied three Galactomyces ferment filtrate-containing SK-II products twice daily for 12 months; skin hydration rose, with a correlated reduction of TEWL. Miyamoto et al. (2021): in two 8-week studies (47 and 57 young Japanese women), all subjects applied a GFF formula, which significantly reduced pore area, roughness and redness. The authors are P&G employees or consultants.Miyamoto 2023 · Journal of Clinical Medicine ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
Also known as
pitera, saccharomycopsis ferment filtrate
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