Vitamin C Serum — Reddit Reviews
by Vanicream
Updated October 13, 2026
5% THDA brightens gradually with ceramides; gentle entry point, breakout risk.
What the community says
A 5% tetrahexyldecyl ascorbate serum with ceramides, built as a gentler entry point for sensitive skin and tretinoin routines. It can brighten gradually and layer under sunscreen, though acne-prone users may see deep breakouts or greasy tackiness.
What this means for you
What people love
- 5% THDA derivative — gentler starting strength
- Ceramides support the skin barrier
- Doesn’t pill under sunscreen or makeup
Watch out for
- Deep, inflamed acne spots reported
- Greasy, shiny, tacky finish on some skin
- Several users saw little or no discoloration change
Product details
Concerns
Skin Type
Product Traits
Where to buy
What the science says
Hyperpigmentation
Some evidence
Vitamin C: 9 studies tested it on its own. See all 20 studies
Anti-Aging
Some evidence
Vitamin C: 6 studies tested it on its own. See all 17 studies
What the studies found
- All 6 studies that tested vitamin C on its own found it helped with signs of aging
- Studies found it improved wrinkles, including crow’s-feet and lines around the eyes
- It also made sun-damaged skin look smoother and improved overall skin appearance
- It did not seem to improve how much water the skin held more than a placebo
- No side effects were reported in one clinical trial
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 58 mentions across 30 threads
Vanicream Vitamin C Serum on Reddit, in one place — 30 threads from r/tretinoin, r/30PlusSkinCare and 4 more, summarized.
“But I might try to add a gentle Vit C serum like the Vanicream 5% THD one maybe in six months.”
Mentioned
“AM: Rinse face with water, Numbuzin NAD+ PDRN Glow Boosting Toner, Vanicream Vitamin C Serum, Beauty of Joseon Relief Sun”
Mentioned
“And then if that's fine, to try adding copper peptides down the road too.”
Mentioned
“AM routine: Vanicream Vitamin C Serum”
Positive
“I decided on the following routine.”
Positive
“I would like to think it has made a difference.”
Positive
“And that Vanicream vitamin C is my new favorite.”
Positive
“This vitamin c as well is very sensitive-skin friendly so not likely to cause irritation.”
Positive
“I wish I could use vitamin c, even the vanicream one breaks me out 😥”
Positive
“Right now I’m using Vanicream Vitamin C.”
Positive
“It feels really nourishing and doesn’t pill when I apply my other products/makeup.”
Positive
“I feel like it’s helping my 34-year-old-skin glow!”
Positive
“taking out a vanicream vitamin C serum in the AM that I was using for the discoloration”
Cautionary
“it wasn’t doing anything lol”
Cautionary
“The only thing I changed in my routine from the first pic was adding in the azelaic acid AM and PM and taking out a vanicream vitamin C serum”
Cautionary
“Vanicream has a great Vitamin C serum- gentle and no niacinamide.”
Positive
