Tranexamic Topical Acid 5% — Reddit Reviews
by Naturium
Updated October 21, 2026
5% tranexamic acid serum fades post-acne marks; noticeable brightening, potent active blend.
What the community says
A 5% tranexamic acid serum pairing kojic acid, niacinamide, and licorice root extract for stubborn discoloration and post-acne marks. Some tretinoin users move it to mornings, since this potent active blend complicates crowded routines.
What this means for you
What people love
- 5% tranexamic acid paired with kojic acid for PIH and PIE
- Tretinoin users report a noticeable brightness improvement
- Acne spots looked smaller after twice-weekly use
Watch out for
Product details
Where to buy
What the science says vs. what Reddit says
Hyperpigmentation
Some evidence
Tranexamic Acid: 9 studies tested it on its own. See all 19 studies
On Reddit: Twice-weekly use noticeably shrank acne spots, making it a practical pick for lingering post-acne marks. 6 mentions
What the studies found
- Most studies found it helped fade dark patches, especially in melasma
- It often worked about as well as other common dark-spot treatments
- Using it with other treatments often faded patches more than the other treatment alone
- Some studies found injected tranexamic acid, microneedling, or oral use worked better than other ways of using it
- The most common side effects were stomach upset, skin irritation, and menstrual changes
Studied at 2–5%this product: 5%
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
Real Reddit threads — 20 mentions across 16 threads
Naturium Tranexamic Topical Acid 5% on Reddit, in one place — 16 threads from r/SkincareAddiction, r/tretinoin and 3 more, summarized.
“There's also Naturium Tranexamic Acid serum”
Mentioned
“(tranexamic acid, niacinamide, licorice, kojic acid)”
Mentioned
“which is more impressive on paper but all of them are excellent.”
Mentioned
“Natrium txa serum”
Positive
“the Naturium TXA honestly made a noticeable difference in brightness for me.”
Positive
“thank you!! the Naturium TXA is so good, you'll love it.”
Positive
“I just bought these 2 products from Naturium.”
Mentioned
“I’m pairing their tranexamic serum with their alpha arbutin serum.”
Mentioned
“Anyone here have experience with them?”
Mentioned
“Naturium TXA serum with KJA, niacinamide and licorice”
Positive
“Day:”
Positive
“Applying products with -Tranexamic Acid ... helps the best.”
Positive
“At night, I use naturium tranexamic topical acid 5%, layered with Peptides by Medik8 and retinal by medik8.”
Mentioned
“Personally I use vit c and a good sunscreen in morning.”
Mentioned
“Melasma is incredibly hard yo get rid off.”
Mentioned
“Naturium Tranexamic Topical Acid 5% for PIH”
Positive
“My current skincare routine is:”
Positive
“Morning”
Positive
