Master Serum — Reddit Reviews
by Mixsoon
Updated October 12, 2026
Centella and bifida serum for hydration, barrier support, and calmer tret skin; addicting.
What the community says
A watery centella serum with bifida ferment, panthenol, glycerin, and two forms of hyaluronic acid. It’s the kind of calming layer people grab for tret dryness, irritated skin, and general barrier repair. Skips fragrance and niacinamide; some just find it redundant.
What this means for you
What people love
- Centella plus bifida ferment and panthenol
- Hydrating without a heavy feel
- Fragrance-free and acne-safe
Watch out for
- No niacinamide, so it won’t replace a multitasker routine
- Can feel redundant if your routine already covers hydration
- Mostly a support serum, not a dramatic treatment
Product details
Key Ingredients
Skin type data limited
Where to buy
What the science says
Redness/Irritation
Not proven yet
Few or mixed studies. This claim isn't established.
Centella/Cica: 1 study tested it on its own. See all 5 studies
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 16 mentions across 13 threads
Mixsoon Master Serum on Reddit, in one place — 13 threads from r/koreanskincare and r/tretinoin, summarized.
“Mixsoon master serum 30 ml”
Mentioned
“Havent tried for long enough to know as i dont really need it in my routine .Has bifida and centella though”
Mentioned
“I love the Mixsoon master serum. It’s my go to when my skin is feeling irritated.”
Mentioned
“bean serum and master serum”
Mentioned
“I have a few Mixsoon products that my skin loves.”
Mentioned
“Bifida toner, Hyaluronic essence, bean serum and master serum.”
Mentioned
“Mixsoon Master Serum and iUnik Beta Glucan Serum”
Positive
“Holy grails of hydration?”
Positive
“would love anymore suggestions”
Positive
“The other serum I think you could find really useful while you’re getting started on the tretinoin is the Mixsoon Master Serum.”
Mentioned
“If you’re planning on starting tretinoin soon, that’s the one I’d go with.”
Mentioned
“The iUnik Beta Glucan Serum is really good.”
Mentioned
“Mixsoon Master Serum.”
Positive
“It’s incredible.”
Positive
“Only drawback is it doesn’t contain niacinamide so I usually combine it with a product or two that does.”
Positive
“Personally I really like the Mixsoon Master Serum.”
Mentioned
“I think serums that contain barrier supporting ingredients are great all of the time”
Mentioned
“if it’s the right serum, especially when starting tretinoin.”
Mentioned
