100% L-Ascorbic Acid Powder — Reddit Reviews
by The Ordinary
Updated October 10, 2026
Fresh-mixed vitamin C powder brightens and fades dark spots; red-face risk.
What the community says
Pure L-ascorbic acid powder you mix into another product right before applying. People use it for brightening and post-acne marks, but it’s fussy, can sting, and oxidizes if you let it sit.
What this means for you
Backed by 5 threads from r/scacjdiscussion, r/30PlusSkinCare and 3 more.
Read the threads ↓What people love
- Fresh-mixed vitamin C with no bottle oxidation
- Brightens skin and fades dark spots
- Tiny $6 pot, huge flexibility
Watch out for
- Redness city for reactive skin
- Fussy to dose and mix every day
- Not something to throw into an already active routine
Product details
Concerns
Key Ingredients
Skin type data limited
Where to buy
What the science says
Hyperpigmentation
Some evidence
Vitamin C: 9 studies tested it on its own. See all 20 studies
What the studies found
- Most studies found it helped fade dark patches or make skin tone look more even
- With microneedling, vitamin C improved melasma in several studies
- It worked about as well as tranexamic acid in some microneedling studies
- Side effects were usually mild, short-lived, or not reported
Studied at 3–30%this product: 100%
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 6 mentions across 5 threads
The Ordinary 100% L-Ascorbic Acid Powder on Reddit, in one place — 5 threads from r/scacjdiscussion, r/30PlusSkinCare and 3 more, summarized.
“100% L-Asorbic Acid Powder - This actually did its job at brightening my skin a bit and fading some of my acne scars/dark spots.”
Cautionary
“Hits - the vitamin C powder. What a genius idea for vitamin C.”
Cautionary
“100% L-Ascorbic Acid Powder: Red face galore!”
Cautionary
“The Ordinary 100% L-Ascorbic Acid Powder, $6”
Positive
“So cheap and so effective.”
Positive
“Mix it every day so it doesn’t oxidize.”
Positive
“The Ordinary 100% L-Ascorbic Acid Powder. I mix into COSRX Full Fit Propolis Synergy Toner and apply.”
Mentioned
“I mix into COSRX Full Fit Propolis Synergy Toner”
Mentioned
“and apply”
Mentioned
“I've actually gone back to the infamous The Ordinary pure L-Ascorbic acid powder”
Positive
“fresh mixed with the Torriden Dive In Skin Booster in the AM”
Positive
“and it's been awesome.”
Positive
