Tranexamic Acid 10% Serum — Reddit Reviews
by Cos De BAHA
Updated August 19, 2026
10% tranexamic acid serum for fading hyperpigmentation; can sting sensitive skin.
What the community says
A serum with 10% tranexamic acid plus niacinamide designed to target dark spots and uneven tone. It suits those seeking brightening without retinol but can irritate sensitive, redness-prone, or barrier-compromised skin. Users report stinging and dryness as main drawbacks.
What this means for you
What people love
- Contains 10% tranexamic acid plus niacinamide for targeted brightening
- Hydrating texture with a slip that layers well under makeup
- Helps fade post-acne marks and hyperpigmentation over months
Watch out for
Product details
Where to buy
Real Reddit threads — 62 mentions across 30 threads
Cos De BAHA Tranexamic Acid 10% Serum on Reddit, in one place — 30 threads from r/SkincareAddiction, r/tretinoin and 3 more, summarized.
“Cos de Baha Tranexamic Acid serum (tranexamic + niacinamide) is one of the generic options I would suggest”
Mentioned
“and can certainly be used with retinoids comfortably.”
Mentioned
“Ideally ... you would cleanse, apply the cos de baha tranexamic serum, moisturize on damp skin.”
Mentioned
“I'm trying out the cos de baha AZ20 with 20% azelaic acid.”
Mentioned
“Think it's going well so far, but I've only started introducing it two weeks ago”
Mentioned
“- cos de baha AZ15.”
Positive
“- cos de baha Az15.”
Positive
“My full routine is:”
Positive
“The serum is so soothing for my redness/acne/eczema and truly feels hydrating too, it kinda has an aloe vera like slip when applied and works well under my SPF/makeup.”
Positive
“Cos de Baha: been using this now for two weeks since I came back from my trip. It has a nice slip to it when put on damp skin, sinks in quickly without leaving tacky feel, and I have noticed that my skin texture looks smoother and pores appear smaller.”
Positive
“can you plss give reviews for cos de baha az serum”
Positive
“AM: skin1004 centella ampoule, cos de baha 10% azelaic acid, dr g clear soothing cream, sunscreen”
Positive
“I focus on acne prevention and hyperpigmentation so that's what my routine focuses on.”
Positive
“I'm still trying to find the perfect routine that works for my sensitive, acne-prone, oily skin.”
Positive
“Some of these serums helped me fade the dark spots from acne marks faster:”
Positive
“Cos de baha tranexamic acid 10%”
Positive
“Where are we all currently buying cos de baha brand items?”
Positive
Dupes & Alternatives
Anua
Azelaic Acid Hyaluron Redness Soothing Serum
Better for Hyperpigmentation
14 shared traits
549 mentions
