No.1 Pantothenic B5 Active Soothing Serum — Reddit Reviews
by numbuzin
Updated September 29, 2026
Hydrating soothing serum with panthenol, niacinamide, and zinc PCA; bland but comfy.
What the community says
A watery soothing serum people mainly use for dehydration, barrier wobble, and summer layering. Redditors like the not-too-sticky texture and sometimes skip moisturizer over it in heat, though some call it bland and basically just hydration.
What this means for you
What people love
Watch out for
- Some people get nothing from it
- Feels bland if you want a noticeable treatment step
- Niacinamide can be a problem for reactive skin
Product details
Skin type data limited
What the science says
Acne
Some evidence
Niacinamide: 6 studies tested it on its own. See all 17 studies
What the studies found
- Most studies found niacinamide helped acne
- Some studies found 4% niacinamide cleared acne about as well as clindamycin
- One study found 4% niacinamide improved red, sore spots, but IPL worked better
- Some research found no clear difference, and a large review said the effects were uncertain
Hyperpigmentation
Some evidence
Niacinamide: 5 studies tested it on its own. See all 24 studies
What the studies found
- All of these studies found niacinamide helped fade dark spots or patches
- In clinical trials, 5% niacinamide faded dark spots more than a placebo
- It also helped when used with salicylic acid peels, more than peels alone
- Used on its own, it helped, but one study found a niacinamide mix worked better
- One study found the fading effect reversed after stopping niacinamide
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 5 mentions across 4 threads
numbuzin No.1 Pantothenic B5 Active Soothing Serum on Reddit, in one place — 4 threads from r/koreanskincare and r/SkincareAddiction, summarized.
“These are some options and I've found: - Numbuzin No.1 Serum”
Mentioned
“I'm not entirely sure about the exact percentages of the key ingredients in these products or how much they actually matter”
Mentioned
“Out of these options, which one do you think would work best for my skin type?”
Mentioned
“Numbuzin — Pantothenic B5 Active Soothing Serum”
Mentioned
“SERUMS / AMPOULES”
Mentioned
“Products i currently have:”
Mentioned
“I like the. Numbuzin no 1 serum”
Mentioned
“Torriden has good reviews and is a top seller”
Mentioned
“You can try the isntree Ultra Low Molecular Hyaluronic Acid Toner”
Mentioned
“Numbuzin No.1 Pantothenic B5 Active Soothing Serum did nothing for my skin”
Cautionary
“it's really just a hydrating serum”
Cautionary
“very bland imo”
Cautionary
