No.3 Skin Softening Serum — Reddit Reviews
by numbuzin
Updated August 4, 2026
Strong texture-improving effect thanks to niacinamide and gentle exfoliation from lactic acid
What the community says
Fermented serum with 4% niacinamide and lactic acid praised for softening skin, improving texture, and providing a dewy finish, favored by many in K-beauty circles but can be too active for sensitive or acne-prone users.
What this means for you
What people love
- Strong texture-improving effect thanks to niacinamide and gentle exfoliation from lactic acid
- Hydrating and gives a noticeable glow, often used under makeup for smooth application
- Contains bifida and galactomyces ferments that support barrier strength and skin resilience
Watch out for
- Ferment ingredients can trigger breakouts and irritation for acne-prone and sensitive skin types
- Some users report stinging around sensitive areas like mouth corners
- Active exfoliating ingredients may be too much if layered with other actives or if skin barrier is compromised
Product details
Use caution
Skin Type
Product Traits
Key Ingredients
Where to buy
Real Reddit threads
29 threads from r/AsianBeauty, r/koreanskincare +4 more
“I was using numbuzin no3 serum before this”
Mentioned
“Haruharu Wonder 2GF Serum”
Mentioned
“💙💙”
Mentioned
“numbuzin no 3 essence toner is a close second”
Positive
“I've recced the peeled egg pads to loads of people”
Positive
“HG products and qf”
Positive
“Numbuzin's reformulated #3 serum”
Positive
“Numbuzin #3”
Positive
“I just started using it (Numbuzin skin softening serum specifically)”
Cautionary
“but I'm starting to break out as well...”
Cautionary
“because everyone spoke so highly of it”
Cautionary
“Lately I've been enjoying the torriden sunscreen and Numbuzin 3 pore blurring tone up”
Mentioned
“Yes I am very careful to only buy the Korean formulations”
Mentioned
“Ferments - numbuzin no 3 serum ... broke me out like crazy”
Cautionary
“So many :') I learned I have super sensitive skin the hard way...”
Cautionary
