P-TIOX Anti-Wrinkle Serum — Reddit Reviews
Updated September 29, 2026
Peptide-heavy serum people keep in rotation for fewer fine lines.
What the community says
A peptide-and-niacinamide serum people slot into AM or PM routines, often alongside other expensive actives. Redditors keep it around when their face looks better with it; the trade-off is that it’s more routine filler than proven miracle.
What this means for you
What people love
- Peptide stack with niacinamide
- Kept in AM and PM routines
- Some users say skin looks worse without it
Watch out for
Product details
Key Ingredients
Skin type data limited
Where to buy
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 — 3 mentions across 1 thread
SkinCeuticals P-TIOX Anti-Wrinkle Serum on Reddit, in one place — 1 thread from r/30PlusSkinCare, summarized.
“AM: P-Tiox serum”
Positive
“PM: P-tiox”
Positive
“My vitamin C and Peptide serums are really expensive (skinceuticals)”
Positive
